Tuyau en polychlorure de vinyle à orientation moléculaire (PVCO) pour les applications sous pression

1.1
This Standard covers molecularly oriented polyvinylchloride (PVCO) pipe intended for use in pressure applications such as water mains, sewer force mains, and process piping.

Note: This Standard does not address chemical compatibility between PVCO pipe and process fluids. Where PVCO pipe is to be used in non-water applications, the manufacturer should be consulted.

1.2
PVCO complying with this Standard is not suitable for solvent cementing and is intended to be joined by gasketed joints.

1.3
This Standard specifies requirements for materials, quality of work, dimensions, markings, hydrostatic sustained pressure, extrusion, impact resistance, and quality for PVCO pipe.

1.4
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.