Draft Details

1.1 Inclusions

This Standard applies to vacuum waste-collection systems intended to extract and transport water, condensate from refrigerators, sanitary waste, greywater, or grease and specifies requirements for system equipment and components, field-installed drainage piping, vacuum plumbing fixtures, backflow prevention, materials, construction, performance testing, and markings. This Standard also provides guidance for vacuum system design, verification, and commissioning.

Notes:

The terms “vacuum waste-collection system”, “vacuum drainage system”, and “vacuum system” are used interchangeably. In this Standard, the term “vacuum system” is used.

Annex A contains a gauge vacuum pressure equivalence table.

Annex B specifies tests for plastic pipe for field-installed drainage systems.

Annex C covers the design of vacuum systems and comprises three major sections: a description and operation of vacuum systems (Clause C.1), design factors (Clause C.2), and design parameters (Clause C.3).

Annex D specifies the procedure for calculating wastewater flow rates.

Annex E specifies the procedure for sizing pipes and buffer/accumulators.

Annex F indicates procedures and tests for the verification and commissioning of vacuum systems. Table F.3 provides the requirements for the verification of the design factors and parameters specified in Clauses C.2 and C.3.

Annex G specifies the procedure for the field-installed plastic vacuum drainage piping tightness test.

1.2 Exclusions

This Standard does not apply to

gravity drainage systems upstream of the vacuum system; and

plumbing fixtures upstream of the vacuum system.

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; “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 Units of measurement

The values stated in either SI (metric) or inch/pound units are to be regarded as the standard. SI units are the units of record in Canada.

In this Standard, the inch/pound units are shown in parentheses. The values stated in each measurement system are equivalent in application; however, each system is to be used independently. Combining values from the two measurement systems can result in non-conformance with this Standard.

All references to gallons are to U.S. gallons.

All references to pressures are to gauge pressures. A vacuum pressure equivalence table is included in Annex A.

1.5 Alternative materials

The requirements of this Standard are not intended to prevent the use of alternative materials or methods of construction provided such alternatives meet the intent and requirements of this Standard.