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1.1        General

This Standard provides a common set of requirements for safety management system for use in passenger railway systems in Canada.

1.2 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.

IEC 62841-1:2014, Clause 1 is applicable, except as follows:

Replacement of the third paragraph:

The rated voltage is not more than 250 V for single-phase a.c. or d.c. tools, and 480 V for three-phase a.c. tools.

Addition:

This document applies to hand-held cut-off machines fitted with

- one bonded reinforced wheel of Type 41 or Type 42; or

- one or more diamond cutting wheels with peripheral gaps, if any,

+ having no positive rake angle; and

+ not exceeding 10 mm for cut-off machines other than flush cutters, power cutters and wall chasers;

and with

- a rated no-load speed not exceeding a peripheral speed of the wheel of 100 m/s at rated capacity; and

- a rated capacity not exceeding 430 mm.

NOTE 101 An example of a permitted diamond cutting wheel construction is shown in Figure 106.

These tools are intended to cut materials such as metals, concrete, masonry, glass and tile.

This document does not apply to:

- cut-off machines that can be converted to a grinder, sander or polisher, which are covered by IEC 62841-2-3;

- circular saws which are covered by IEC 62841-2-5; and

- die grinders and small rotary tools which are covered by IEC 62841-2-23;

- tools intended to cut wood, except for utility cutters;

- cut-off machines fitted with a bonded reinforced wheel of Type 42 with a diameter exceeding 230 mm.

Draft Amendment to C22.1

1.1 Application
This Standard applies to the safe storage, handling, and use of portable oxygen systems for medical or therapeutic use at the patient bedside. It includes portable oxygen systems which provide medical oxygen in high-pressure oxygen cylinders, liquid oxygen systems, and oxygen concentrators. in residential buildings and health care facilities.

1.2 Inclusions
This Standard includes requirements for maximum aggregate storage quantities of gaseous and liquid oxygen.

1.3 Exclusions
This Standard shall not apply to veterinary hospitals, gas mixes containing oxygen (e.g., 50/50 mix of nitrous oxide and oxygen, M size (22L H2O) or larger high pressure cylinders, and liquid oxygen 65L reservoirs or greater) and the safe storage, use, and handling of portable Oxygen systems which are intended for use on a Medical Gas Pipeline System. See CSA Z7396.1 - Medical gas pipeline systems - Part 1: Pipelines for medical gases, medical vacuum, medical support gases, and anaesthetic gas scavenging systems for further information.

1.3 Terminology
In CSA Standards, “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; “may” is used to express an option or that which is permissible within the limits of the standard; and “can” is used to express possibility or capability. 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.

1.4 Values
The values given in SI (metric) units are the standard. The values given in parentheses are for information only.