Main Categories

Draft Amendment to C22.1

S1-1.1 Applicability

This Supplement sets out minimum requirements for the design, construction, operation, maintenance, abandonment, and safety storage of hydrogen and hydrogen blends in underground formations and associated equipment. The equipment considered includes

a) storage wellhead and Christmas tree assemblies;

b) wells and subsurface equipment; and

c) safety equipment, including monitoring, control, and emergency shutdown systems.

This Supplement is to be used concurrently with Z341.1 and Z341.2. Unless otherwise specified, all references to hydrocarbons or stored fluids in Z341.1 and Z341.2 shall be read as meaning hydrogen or hydrogen blend. Where no changes are identified in this Supplement, Z341.1 and Z341.2 shall apply.

This Supplement has been designed to complement provincial and/or federal regulatory frameworks and does not mandate regulatory requirements unless referenced in provincial and/or federal regulations. This Supplement provides advisory guidance that can be followed to demonstrate compliance with local and national codes and regulations and industry best practices. Alternative design codes and standards that are not specified in this Supplement may be used, provided that pertinent local and national regulations are satisfied and that it can be demonstrated that the design meets industry best practices.

There is no established safe percentage of hydrogen that can be blended in an underground storage system without first evaluating, including but not limited to, existing defects, partial pressure, metallurgy and microstructure, pressure cycling, and percentage of Specified Minimum Yield Strength (SMYS) on the wellbore materials and evaluating the reactivity impacts with the storage formation. Where the evaluation of these parameters indicates there is minimal risk from hydrogen, then existing Z341.1 and Z341.2 may be used.

The design, materials, and well completion requirements of this Supplement shall be considered for existing installations and installations under construction at the time of publication. The requirements shall apply to the testing, operation, extension, conversion, maintenance, and upgrading of such installations.

 Note: Hydrocarbons covered by this Supplement are restricted to natural gas.

S1-1.2 Scope diagram

The scope of this Supplement for reservoir storage of hydrogen and hydrogen blends is shown in Figure 1 of Z341.1. The scope of this Supplement for salt cavern storage of hydrogen and hydrogen blends is shown in Figure 1 of Z341.2.

S1-1.3 Excluded from scope 

This Supplement does not apply to

ammonia;

methanol;

in-situ production of hydrogen; and

items in Clause 1.3 in Z341.1 and Z341.2.

S1-1.4 Limitations

It is not the intent of this Supplement to prevent the development of new equipment or practices, nor to prescribe how such innovations should be handled.

Where the requirements of this Supplement differ from the requirements of other standards or codes referenced herein, the requirements of this Supplement shall be considered as this was developed specifically for storage of hydrogen and hydrogen blends.

S1-1.5 Terminology

In this Supplement, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the Standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.

Draft Amendment to C22.1

Draft Amendment to C22.1

Draft Amendment to C22.1

Draft Amendment to C22.1

This clause of Part 1 is replaced by the following.

This part of IEC 60335 deals with the safety of electric HEAT PUMPS, including SANITARY HOT WATER HEAT PUMPS, AIR CONDITIONERS, and DEHUMIDIFIERS incorporating motor-compressors and HYDRONIC FAN COILS UNITS, their maximum RATED VOLTAGES being not more than 250 V for single phase appliances and 600 V for all other appliances. PARTIAL UNITS are within the scope of this International Standard.

Appliances not intended for normal household use but which nevertheless may be a source of danger to the public, such as appliances intended to be used by laymen in shops, in light industry and on farms, are within the scope of this standard.

The appliances referenced above may consist of one or more factory-made assemblies. If provided in more than one assembly, the separate assemblies are to be used together, and the requirements are based on the use of matched assemblies.

NOTE 101 A definition of ‘motor-compressor’ is given in IEC 60335-2-34, which includes the statement that the term motor-compressor is used to designate either a hermetic motor-compressor or semi-hermetic motor-compressor.

NOTE 102 Requirements for refrigerating safety are covered by ISO 5149-1, ISO 5149-2, and ISO 5149-3. Requirements for containers intended for storage of the heated water included in SANITARY HOT WATER HEAT PUMPS are, in addition, covered by IEC 60335-2-21.

This standard does not take into account refrigerants other than group A1, A2L, A2 and A3 as defined by ISO 817 classification, A2L REFRIGERANTS are limited to those of a molar mass of more than or equal to 42 kg/kmol based on WCF as specified in ISO 817.

This standard specifies particular requirements for the use of FLAMMABLE REFRIGERANTS. Unless specifications are covered by this standard, including the annexes, requirements for refrigerating safety are covered by ISO 5149.

The parts of ISO 5149 of particular concern to this standard are as follows:

• ISO 5149-1:2014, Refrigerating systems and heat pumps – Safety and environmental requirements – Part 1: Definitions, classification and selection criteria.

• ISO 5149-2, Refrigerating systems and heat pumps – Safety and environmental requirements – Part 2: Design, construction, testing, marking and documentation;

• ISO 5149-3:2014, Refrigerating systems and heat pumps – Safety and environmental requirements – Part 3: Installation site.

SUPPLEMENTARY HEATERS, or a provision for their separate installation, are within the scope of this standard, but only heaters which are designed as a part of the appliance package, the controls being incorporated in the appliance.

NOTE 103 Attention is drawn to the fact that

• for appliances intended to be used in vehicles or on board ships or aircraft, additional requirements may be necessary;

• for appliances subjected to pressure, additional requirements may be necessary;

• in many countries, additional requirements are specified, for example, by the national health authorities responsible for the protection of labour and the national authorities responsible for storage, transportation, building constructions and installations.

NOTE 104 This standard does not apply to

• humidifiers intended for use with heating and cooling equipment (IEC 60335-2-88);

• appliances designed exclusively for industrial processing;

• appliances intended to be used in locations where special conditions prevail, such as the presence of a corrosive or explosive atmosphere (dust, vapour or gas).

1DV.1 DR Modification by replacing the second paragraph of Clause 1 as follows:

This part of IEC 60335 deals with the safety of electric heat pumps, including hot water heat pumps, air conditioners, and dehumidifiers incorporating motor-compressors, as well as and hydronic fan coils units, their maximum rated voltages being not more than 300 V for single phase appliances and 15 000 V for all other appliances. Partial units are within the scope of this Standard. 

1DV.2 D1 Modification of the sixth paragraph of this Part 2 by replacing with the following:

This standard does not take into account refrigerants other than refrigerant safety groups as defined by ISO 817 or ANSI/ASHRAE 34 as follows:

a) A1; and

b) B1, B2L, B2, B322.46 [for use in appliances installed in machinery rooms as defined in accordance with ANSI/ASHRAE 15 (USA) or CSA B52 (Canada), or outdoors only; and

c) A2L, A2, and A3 refrigerants with a molar mass not less than 42 kg/kmol based on nominal composition.

1DV.3 DR Modification of the eighth paragraph of Clause 1 as follows:

Replace “ISO 5149” with “ANSI/ASHRAE 15 (USA) and CSA B52 (Canada)”.

1DV.4 DR Modification of Clause 1 of the Part 2 by adding the following paragraph:

All references to ISO 817 in this Part 2 also apply to ANSI/ASHRAE 34. ANSI/ASHRAE 34 shall take precedence over ISO 817.

1DV.5 D1 Modification of NOTE 104 of Clause 1 of the Part 2 by deleting the 2nd bullet point.

This document specifies requirements and provides guidance on the enumeration and microbial characterization of the population of viable microorganisms on or in a health care product, component, raw material or package.

NOTE 1 The nature and extent of microbial characterization is dependent on the intended use of bioburden data.

NOTE 2 See Annex A for guidance on Clauses 1 to 9. This document does not apply to the enumeration or identification of viral, prion or protozoan contaminants.

This includes the removal and detection of the causative agents of spongiform encephalopathies, such as scrapie, bovine spongiform encephalopathy and Creutzfeldt-Jakob disease.

NOTE 3 Guidance on inactivating viruses and prions can be found in ISO 22442-3, ICH Q5A(R1) and ISO 13022.

This document does not apply to the microbiological monitoring of the environment in which health care products are manufactured.

This document specifies procedures and test methods used to demonstrate the cleaning efficacy of washer-disinfectors (WD) and their accessories intended to be used for cleaning of reusable medical devices.

NOTE 1 The requirements can be used for washer-disinfectors intended for use with other articles used in the context of medical, dental, laboratory, pharmaceutical and veterinary practice.

NOTE 2 This document does not apply to the activities to be performed by the manufacturers of reusable medical devices.

This document specifies requirements for the information to be provided by the medical device manufacturer for the processing of critical or semi-critical medical devices (i.e. a medical device that enters normally sterile parts of the human body or a medical device that comes into contact with mucous membranes or non-intact skin) or medical devices that are intended to be sterilized.

This includes information for processing prior to use or reuse of the medical device. 

Processing instructions are not defined in this document. Rather, this document specifies requirements to assist manufacturers of medical devices in providing detailed processing instructions that consist of the following activities, where applicable:
a) initial treatment at the point of use;
b) preparation before cleaning;
c) cleaning;
d) disinfection;
e) drying;
f) inspection and maintenance;
g) packaging;
h) sterilization;
i) storage;
j) transportation.
This document excludes processing of the following:
— non-critical medical devices unless they are intended to be sterilized;
— textile devices used in patient draping systems or surgical clothing;
— medical devices specified by the manufacturer for single use only and supplied ready for use.
NOTE See ISO 17664-2:2021, Annex E, for further guidance on the application of the ISO 17664 series to a 
medical device.

This document specifies requirements for the information to be provided by the medical device manufacturer for the processing of non-critical medical devices not intended to be sterilized (i.e. a medical device that is intended to come into contact with intact skin only or a medical device not intended for direct patient contact).
This includes information for processing prior to use or reuse of the medical device.
Processing instructions are not defined in this document. Rather, this document specifies requirements to assist manufacturers of medical devices in providing detailed processing instructions that consist of the following activities, where applicable:
a) preparation before processing;
b) cleaning;
c) disinfection;
d) drying;
e) inspection and maintenance;
f) packaging;
g) storage;
h) transportation.
This document excludes processing of:
1) critical and semi-critical medical devices;
2) medical devices intended to be sterilized;
3) textile medical devices used in patient draping systems or surgical clothing;
4) medical devices specified by the manufacturer for single use only and supplied ready for use.
NOTE See Annex E for further guidance on the application of the ISO 17664 series to a medical device.

This document provides guidance for the application of the requirements contained in ISO 11607-1 and ISO 11607-2. It does not add to, or otherwise change, the requirements of ISO 11607-1 and ISO 11607-2. 
This is an informative document, not normative. It does not include requirements to be used as basis of regulatory inspection or certification assessment activities.

The guidance can be used to better understand the requirements of ISO 11607-1 and ISO 11607-2 and illustrates the variety of methods and approaches available for meeting the requirements of those 
International Standards. It is not required that this document be used to demonstrate conformity with them.
Guidance is given for evaluation, selection and use of packaging materials, preformed sterile barrier systems, sterile barrier systems and packaging systems. Guidance on validation requirements for forming, sealing and assembly processes is also given.

This document provides information for both healthcare facilities and the medical devices industry for terminally sterilized medical devices.
This document does not provide guidance for applications of packaging materials and systems after their opening. In the use of packaging for other purposes such as a “sterile field” or transport of contaminated items, other regulatory standards will apply.

Draft Amendment to C22.1

Draft amendment to C22.1

Draft amendment to C22.1

1.1 Applications

This Standard applies to the construction, performance, and installation procedures for a newly produced automatic damper device (hereinafter referred to as device) constructed entirely of new, unused parts and materials and designed to be used with a gas-fired appliance listed by a nationally recognized certification body.

1.2 Inclusion

This Standard applies to the following automatic damper devices:

Vent;

Flue;

Fireplace chimney; and

Backflow prevention

Rationale: There currently are no component standards that cover flue damper devices or backflow dampers.

Flue damper devices have been in use for decades, and have typically been tested and certified to ANSI Z21.66 • CSA 6.14 by many nationally recognized certification bodies. This proposal is intended to correct unintentional omissions in the ANSI Z21.66-2015 • CSA 6.14-2015, and provide coverage for an existing gap in performance and construction requirements.

 A backflow damper is designed to prevent flue gas from entering into idle appliances when part of a positive pressure common vent system.

These types of systems are becoming more commonly used in North America. Currently, there are no standards that cover the construction and performance requirements for these devices.

                                The CSA B149.1-20 draft edition includes a proposal to require backflow dampers - look up the clause number, proposed language, and rationale statement for that proposal.

1.3 Publications

Clause 2 contains a list of standards specifically referenced in this Standard and sources from which these reference standards may be obtained.

1.4 Construction

Additional provisions specific to electrically operated automatic vent damper devices are outlined under Clause 4.

1.5 Retrofit Installation

Additional provisions specific to retrofit automatic vent damper devices are outlined under Clause 10

1.6 American Provisions

Clause 13 contains provisions that are unique to the United States.

1.7 Canadian Provisions

Clause 14 contains provisions that are unique to Canada.

1.8 Gage Pressure

All references to “psi” throughout this Standard are to be considered gage pressures unless otherwise specified.

1.9 Unit of Measure

The values given in SI units are the units of record for the purposes of this Standard. The values given in parentheses are for information and comparison only.

1.10 Terminology

In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.

Draft Amendment to C22.1

1.1 General

Use of this Standard occurs in conjunction with CSA N288.0, which captures those requirements that are common across the CSA N288 series Standards. These include requirements on

a) criteria for determining the need to establish a monitoring program;

b) design of a monitoring program, including the use of a systematic planning process;

c) sampling and analytical procedures;

d) interpretation of data;

e) QA and QC;

f) reporting, review, and audit;

h) staff qualifications and training; and

g) documentation.

Note: Any requirements pertaining to these elements that are not common across the CSA N288 series Standards, but are specific to a GWPP or GWMP are addressed in this Standard.

1.2 Facilities

1.2.1 Types of facilities

1.2.1.1 General

This Standard addresses the design and operation of GWPPs for nuclear facilities. These facilities include:

a) nuclear reactors;

b) uranium mines, mills, refineries, and conversion plants;

c) uranium fuel fabrication plants

d) isotope processing facilities;

e) particle accelerators with a beam energy equal to or greater than 50 MeV; and

f) nuclear waste management facilities.

Notes:

1/ In this Standard, all of these facilities are included in the term “nuclear facilities”.

2/ On-site conventional waste management facilities (e.g., landfills, incinerators, and sewage treatment plants handling non-radioactive material) are included in the scope of this Standard

1.2.1.2 Additional considerations

As per N288.0, Clause 1.2.2, this Standard may also apply to the design and operation of GWPPs for

a) a facility that includes:

i) an irradiator that uses more than 1015 Bq of a nuclear substance;

ii) an irradiator that requires shielding which is not part of the irradiator and that is designed to deliver a dose of radiation at a rate exceeding 1 cGy/min at a distance of 1 m;

iii) a radioactive source teletherapy machine;

iv) a particle accelerator that is capable of producing nuclear energy and has a beam energy of less than 50 MeV for beams of particles with a mass equal to or less than 4 atomic mass units;

v) a particle accelerator that is capable of producing nuclear energy and has a beam energy of no more than 15 MeV per atomic mass unit for beams of particles with a mass greater than 4 atomic mass units; or

iv) a brachytherapy ;

b) facilities that use or store naturally occurring radioactive materials;

c) Institutions operating under the authority of a nuclear substances and radiation device licence; or

d) Low-level effluent or emissions of nuclear and hazardous substances released to the environment due to existing exposure situations such as those resulting from the contamination of areas with radioactive materials produced or used in past activities.

Notes:

1/ In these situations, however, the operator of the nuclear facility is responsible for determining the applicability and suitability of this Standard in consultation with the AHJ.

2/ The list of facilities under Clause 1.2.1.2(a) corresponds to the definition of “Class II nuclear facility” under the Class II Nuclear Facilities and Prescribed Equipment Regulations.

1.2.2 Facility lifecycle

The nature and extent of GWPP and GWMP requirements change over the lifecycle of the facility. This Standard addresses monitoring performed during

a) site preparation, construction, and commissioning;

b) site operations;

c) site decommissioning; and

d) any period of institutional control that might follow closure of the facility

Notes:

The need for the groundwater monitoring program can be evaluated as part of the periodic review discussed in Clause 8.4.3 and 8.4.4 of CSA N288.0

1.3 Operating conditions

1.3.1 Monitoring during normal operations

The monitoring described in this Standard is applicable where nuclear and hazardous substances might be released to groundwater during normal operations over the lifecycle of a nuclear facility.

Note: Any release resulting from a deviation from routine operational practice that is expected to occur once or several times during the operating lifetime of a nuclear facility or licensed activity (i.e., reasonably foreseeable upset events, also known as anticipated operational occurrences including leaks and spills) is considered part of normal operation.

1.3.2 Monitoring during accidental releases

This Standard does not address groundwater monitoring during accidental releases.

Notes:

1/ Monitoring during accidental releases is not included in this standard due to the emergent and highly specific nature of such events. Planning to mitigate impacts to groundwater from accidental releases is important and parts of this Standard may be used in this planning.

2/ Some parts of this Standard might be applicable to the monitoring of groundwater following an accidental release. In these cases, the operator of the nuclear facility is responsible for determining the applicability of this Standard.

1.4 Spill response and the management of the spill event

This Standard does not address spill response and the management of the spill event; however, if there is residual contamination to groundwater then this Standard would apply.

Note: A facility should have in place a spill response plan to address the immediate response to spills. Some parts of the Standard are applicable to the longer term monitoring of groundwater following a spill event.

1.5 Contaminants and physical characteristics

This Standard considers the following COPCs or groundwater characteristics that might cause potential adverse effects:

a) hazardous substances such as toxic, corrosive, or deleterious substances;

b) nuclear substances; and

c) geochemical (e.g., groundwater quality) and physical characteristics of groundwater (e.g., groundwater quantity or temperature).

1.6 Monitoring

1.6.1 Leak detection

This Standard addresses

a) the role of monitoring in relation to leak detection, although this monitoring does not replace leak prevention;

b) review of structures, systems, and components (SSCs), and sentinel monitoring to provide early warning of any potential groundwater contamination issues, notwithstanding technical limitations (see Clause 6.3.4); and

c) to a limited degree, repair, preventative maintenance, and ageing of monitoring equipment.

1.6.2 Mixed effluent and groundwater

This Standard does not address groundwater that is intercepted, collected, mixed with an effluent stream, and subsequently discharged.

Note: Monitoring of that effluent is discussed in and is part of CSA N288.5, as outlined in Clause 1.5.2 of
CSA N288.5 (see Clause 0.5 of this Standard).

1.7 Interpretation of data

Guidance on the interpretation of data collected by a GWMP is provided in CSA N288.0. Any additional guidance specific to a GWMP is provided in this Standard.

Note: Users are cautioned that the AHJ can impose requirements regarding data analysis and interpretation that differ from those described in this Standard and in CSA N288.0. The operator of the nuclear facility or a licensed activity is responsible for determining what data analysis and interpretation is necessary to ensure compliance with AHJ requirements.

1.8 Risk management and remediation

This Standard does not provide guidance on risk management or remediation.

Note: This Standard provides guidance to identify situations where risk management and remediation might be needed to protect identified receptors, but does not provide further advice on selecting or implementing risk management or remediation options.

1.9 Dose assessment methods

This Standard does not address dose assessment methods.

Notes:

The GWMP does provide information for the groundwater pathway and input for dose assessment.

It is anticipated that dose assessment might be one of the tools used in either interpreting groundwater data or in defining groundwater evaluation criteria for the program.

Guidance on dose assessment methods is provided in CSA N288.6.

1.10 Reporting

Guidance on reporting the results of a groundwater monitoring program is provided in CSA N288.0. Any additional guidance specific to a GWMP is provided in this Standard.

Note: Users are cautioned that the AHJ can impose requirements regarding reporting that differ from those described in this Standard and in CSA N288.0. The operator of the nuclear facility or a licensed activity is responsible for determining what reporting is necessary to ensure compliance with AHJ requirements.

1.11 Terminology

1.11.1

In this Standard, “shall” is used to express a requirement (i.e., a provision that the user is obliged to satisfy to comply with the standard); “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.

1.11.2

In this Standard, “shall be considered” or “shall consider” means that the user is required to consider the possibility, make a decision, and document the reason(s) for that decision.

Note: Examples of decisions can include no action, operating procedures, and design features.

1.1 Généralités

Cette norme est utilisée conjointement avec CSA N288.0, qui énonce les exigences communes à toutes les normes de la série CSA N288. Ces exigences portent notamment sur :

a) les critères permettant de déterminer la nécessité d’établir un programme de surveillance;

b) la conception d’un programme de surveillance, y compris l’utilisation d’un processus de planification systématique;

c) les méthodes d’échantillonnage et d’analyse;

d) l’interprétation des données;

e) l’AQ et le CQ;

f) l’établissement de rapport, revue et audit;

g) la qualifications et la formation du personnel; et

h) la documentation.

Note :Toutes les exigences relatives à ces éléments qui ne sont pas communes aux normes de la série CSA N288, mais qui sont propres à un PPES ou à un PSES sont traitées dans cette norme.

1.2 Installations

1.2.1 Types d’installations

1.2.1.1 Généralités

Cette norme vise la conception et l’exploitation de PPES aux installations nucléaires. Ces installations comprennent :

a) les réacteurs nucléaires;

b) les mines et les usines de concentration d’uranium, les raffineries et les usines de conversion d’uranium;

c) les usines de fabrication de combustibles à l’uranium;

d) les installations de traitement d’isotopes;

e) les accélérateurs de particules ayant une énergie de faisceau égale ou supérieure à 50 MeV; et

f) les installations de gestion des déchets radioactifs.

Notes :

1/ Dans cette norme, toutes ces installations sont désignées par le terme « installations nucléaires ».

2/ Des installations de gestion des déchets traditionnelles sur place (p. ex., centre d’enfouissement, incinérateurs et stations de traitement des eaux usées qui traitent les matières non radioactives) sont incluses dans le domaine d’application de cette norme.

1.2.1.2 Considérations supplémentaires

Conformément à N288.0, article 1.2.2, cette norme peut aussi être pertinente pour la conception et la mise en œuvre de PPES pour :

a) une installation qui comprend :

i) un irradiateur qui utilise plus de 1015 Bq d’une substance nucléaire;

ii) un irradiateur dont le blindage ne fait pas partie de l’irradiateur et conçu pour produire une dose de rayonnement à un débit dépassant 1 cGy/min à une distance de 1 m;

iii) un appareil de téléthérapie à source radioactive;

iv) un accélérateur de particules qui a la capacité de produire de l’énergie nucléaire et dont l’énergie de faisceau est inférieure à 50 MeV pour des faisceaux de particules de masse égale ou inférieure à 4 unités de masse atomique;

v) un accélérateur de particules qui a la capacité de produire de l’énergie nucléaire et dont l’énergie de faisceau est égale ou inférieure à 15 MeV par unité de masse atomique pour des faisceaux de particules de masse supérieure à 4 unités de masse atomique; ou

vi) une curiethérapie;

b) les établissements qui utilisent ou stockent des matières radioactives naturelles;

c) les institutions qui sont exploitées sous l’autorité d’une licence d’utilisation de substances nucléaires et d’appareil à rayonnement; ou

d) les effluents ou émissions de bas niveau de substances nucléaires et dangereuses rejetées dans l’environnement en raison de situations d’exposition existantes, comme celles résultant de la contamination de zones contenant des substances radioactives produites ou utilisées dans le cadre d’activités antérieures.

Notes :

1/ Toutefois, dans ces cas, l’exploitant de l’installation est responsable de déterminer la pertinence de cette norme en consultation avec l’autorité compétente.

2/ La liste des installations visées par l’article 1.2.1.2(a) correspond à la définition d’une « installation nucléaire de catégorie II » dans le Règlement sur les installations nucléaires et l’équipement réglementé de catégorie II.

1.2.2 Cycle de vie de l’installation

La nature et l’importance des exigences relatives au PPES et au PSES varient au cours du cycle de vie de l’installation. Cette norme vise la surveillance effectuée pendant :

a) la préparation du site, la construction et la mise en service;

b) l’exploitation du site;

c) le déclassement du site; et

d) toute période de surveillance institutionnelle qui pourrait suivre la fermeture de l’installation.

Notes :

1/ La nécessité du programme de surveillance des eaux souterraines est susceptible d’être évaluée dans le cadre de la revue périodique dont il est question aux articles 8.4.3 et 8.4.4 de CSA N288.0.

1.3 Conditions d’exploitation

1.3.1 Surveillance pendant l’exploitation normale

La surveillance décrite dans cette norme s’applique lorsque des substances nucléaires et dangereuses pourraient être rejetées dans les eaux souterraines dans le cadre de l’exploitation normale durant le cycle de vie de l’installation nucléaire.

Note :Tout rejet résultant d’un écart par rapport au fonctionnement de routine survenant une ou plusieurs fois pendant la durée d’exploitation d’une installation nucléaire ou d’une activité sous licence (c.-à-d., des perturbations raisonnablement prévisibles, aussi appelées « incidents de fonctionnement prévus », y compris les fuites et les déversements) est considéré comme faisant partie de l’exploitation normale.

1.3.2 Surveillance lors de rejets accidentels

Cette norme ne vise pas la surveillance des eaux souterraines lors de rejets accidentels.

Notes :

1/ La surveillance lors de rejets accidentels ne fait pas partie du domaine d’application de cette norme en raison du caractère émergent et très spécifique de ces événements. La planification des mesures d’atténuation des conséquences sur les eaux souterraines d’un rejet accidentel est un exercice important et des parties de cette norme peuvent être utilisées pour cette planification.

2/ Certaines parties de cette norme pourraient s’appliquer à la surveillance des eaux souterraines après un rejet accidentel. Dans ces cas, l’exploitant de l’installation nucléaire est responsable de déterminer la pertinence de cette norme.

1.4 Intervention en cas de déversement et gestion du déversement

Cette norme ne s’applique pas à l’intervention en cas de déversement ni à la gestion du déversement. Toutefois, s’il y a contamination résiduelle des eaux souterraines, la norme s’applique.

Note :Une installation devrait mettre en place un plan d’intervention en cas de déversement afin de pouvoir réagir immédiatement à un déversement.Certaines parties de cette norme s’appliquent à la surveillance à long terme des eaux souterraines après un déversement.

1.5 Contaminants et caractéristiques physiques

Cette norme traite des caractéristiques suivantes des CPP ou des eaux souterraines qui pourraient avoir des effets nocifs :

a) les substances dangereuses comme les substances toxiques, corrosives ou délétères;

b) les substances nucléaires; et

c) les caractéristiques géochimiques (p. ex., qualité des eaux souterraines) et physiques des eaux souterraines (p. ex., quantité ou température des eaux souterraines).

1.6 Surveillance

1.6.1 Détection des fuites

Cette norme vise :

a) le rôle de la surveillance dans la détection des fuites, bien que ce type de surveillance ne remplace pas la mise en place de mesure de prévention des fuites;

b) la revue des structures, des systèmes et des composants (SSC), et la surveillance par sentinelle afin de signaler de façon précoce toute contamination possible des eaux souterraines, malgré les limites techniques (voir l’article 6.3.4); et

c) dans une certaine mesure, la réparation, l’entretien et le vieillissement des appareils de surveillance.

1.6.2 Mélange des effluents et des eaux souterraines

Cette norme ne vise pas les eaux souterraines qui sont interceptées, collectées et mélangées à un effluent, puis déversées.

Note :La surveillance de ce type d’effluent est visée par CSA N288.5, en particulier l’article 1.5.2 de CSA N288.5 (voir l’article 0.5 de cette norme).
 

1.7 Interprétation des données

Les conseils sur l’interprétation des données recueillies dans le cadre d’un PSES sont fournis dans CSA N288.0. Toute directive supplémentaire propre à un PSES est fournie dans cette norme.

Note :Les utilisateurs sont avisés que l’autorité compétente est susceptible d’imposer des exigences relatives à l’analyse et à l’interprétation des données qui diffèrent de celles prescrites dans cette norme et dans CSA N288.0.C’est à l’exploitant de l’installation nucléaire ou de l’activité autorisée qu’il incombe de déterminer quelles analyses et interprétations des données sont nécessaires pour assurer la conformité aux exigences de l’autorité compétente.

1.8 Gestion des risques et assainissement

Cette norme n’énonce aucune exigence visant la gestion des risques ou les mesures d’assainissement.

Note :Cette norme énonce des exigences visant à reconnaître les situations pour lesquelles une gestion des risques et des mesures d’assainissement pourraient être nécessaires pour protéger les récepteurs connus, mais ne traite pas de la sélection ni de la mise en œuvre des mesures de gestion des risques ou d’assainissement.

1.9 Évaluation de la dose

Cette norme ne traite pas des méthodes d’évaluation de la dose.

Notes :

1/ Le PSES contient néanmoins des renseignements sur les voies d’écoulement des eaux souterraines et des données utiles pour l’évaluation de la dose.

2/ Il est prévu que l’évaluation de la dose constitue l’un des outils d’interprétation des données relatives aux eaux souterraines ou de définition des critères d’évaluation des eaux souterraines pour le programme.

3/ CSA N288.6 traite des méthodes d’évaluation de la dose.

1.10 Établissement de rapport

Les lignes directrices visant la consignation des résultats d’un programme de surveillance des eaux souterraines sont fournies dans CSA N288.0. Toute directive supplémentaire propre à un PSES est fournie dans cette norme.

Note : Les utilisateurs sont avisés que l’autorité compétente est susceptible d’imposer des exigences relatives à l’établissement de rapport qui diffèrent de celles prescrites dans cette norme et dans CSA N288.0.C’est à l’exploitant de l’installation nucléaire ou de l’activité autorisée qu’il incombe de déterminer quels rapports sont nécessaires pour assurer la conformité aux exigences de l’autorité compétente.

1.11 Terminologie

1.11.1

Dans cette norme, le terme « doit » indique une exigence, c’est-à-dire une prescription que l’utilisateur est obligé de respecter pour assurer la conformité à la norme; « devrait » indique une recommandation ou ce qu’il est conseillé, mais non obligatoire de faire; et « peut » indique une possibilité ou ce qu’il est permis de faire.

Les notes qui accompagnent les articles ne comprennent pas de prescriptions ni de recommandations. Elles servent à séparer du texte les explications ou les renseignements qui ne font pas proprement partie de la norme.

Les notes au bas des figures et des tableaux font partie de ceux-ci et peuvent être rédigées comme des prescriptions.

Les annexes sont qualifiées de normatives (obligatoires) ou d’informatives (facultatives) pour en préciser l’application.

1.11.2

Dans cette norme, l’expression « doit être pris en compte » ou « doit prendre en compter » signifie que l’utilisateur doit prendre en compte une possibilité, prendre une décision et documenter cette décision.

Note :Des exemples de décisions sont susceptibles d’inclure aucune action, des procédures d’exploitation et des éléments de conception.

1.1 General

This Standard is limited to free-standing, selective-type storage racks where the principal structural components are upright frames and load support beams. These storage racks include selective rack, double-deep rack, very narrow aisle (VNA) rack, push-back rack, pallet flow rack, pallet shuttle rack, and automated storage and retrieval system (AS/RS) rack.

Note: Storage racks are typically used to store unit loads and loaded by using powered lift equipment.

The selective-type storage racks consist of regularly spaced, braced frames in the cross-aisle direction and parallel, multi-level moment resisting frames or concentrically braced frames in the down-aisle direction.

Note: There are limited racks produced with moment frames in both the down-aisle and cross-aisle directions. This introduces biaxial bending in the column, which has not been considered in the Standard.

This Standard applies only to steel racks constructed of hot-rolled or cold-formed sections, or a combination thereof.

1.2 Application

This standard does not apply to the following storage racks:

cantilever racks;

drive-in and drive-through racks;

portable racks;

rack structures supporting floors or walkways;

rack-supported buildings; and

all other storage structures not specified in Clause 1.1.

Note: Certain parts of this Standard, particularly the structural demand criteria, may be used as guidance when designing rack structures outside the scope of this Standard as there are additional force effects on these systems that are not considered in this Standard.

1.3 Terminology

In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the Standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.