Draft Details

1.1 General

This Standard specifies requirements for compounds, pipe, and fittings used in polyolefin and polyvinylidene fluoride (PVDF) laboratory drainage systems for corrosive applications.

Notes:

Polyolefin includes both PE and PP plastics.

PVDF includes emulsion or suspension polymerization of vinylidene fluoride, and copolymers of vinylidene and hexafluoropropylene produced by emulsion or suspension.

Other thermoplastics may be certified to this Standard provided they comply with the requirements specified in this Standard.

1.2 Joining method

Pipe and fittings covered in this Standard are intended to be joined by heat fusion using joining equipment supplied by the manufacturer.

1.3 Transitioning between different manufacturers’ products

This Standard is not intended to provide for interchangeability between plastic pipe and fittings from different manufacturers, but it does allow for transition fittings used to join one manufacturer’s product to another’s provided the joining technique is other than heat fusion.

Note: See Annex A for guidance on fusion joints and aboveground and underground installations.

1.4 Differing or additional characteristics

Polyolefin laboratory drainage systems having characteristics differing from or additional to those covered by this Standard should be investigated to determine whether they comply with the intent of this Standard.

1.5 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.