scope:

General

This Standard covers compression fittings intended for water supply and exposed above ground gas distribution in residential, commercial, industry applications and specifies requirements for materials, physical characteristics, performance testing, and markings.

This standard applies to compression fittings which can be used with one or more the following materials:

(a) Copper tubing Type K, L and M complying with ASTM B88.

(b) Galvanized Pipe complying with ASTM A53/A53M

(c) Stainless Steel Pipe complying with ASTM A312/A312M

Tubes or pipes used in these fittings shall not exceed 50 DN (NPS-2) in outer diameter.

Alternative Materials

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

Terminology

In this Standard:

(a) "Shall" is used to express a requirement, i.e., a provision that the user is obliged to satisfy to comply with the Standard

(b) "Should" is used to express a recommendation, but not a requirement

(c) "May" is used to express an option or something permissible within the scope of the Standard

(d) "Can" is used to express a possibility or a capability.

Notes accompanying sections of the Standard do not specify requirements or alternative requirements; their purpose is to separate explanatory or informative material from the text. Notes to tables and figures are considered part of the table or figure and can be written as requirements.

Units of Measurement

SI units are the primary units of record in global commerce. In this Standard, the inch/pound units are shown in parentheses. The values stated in each measurement system are equivalent in application, but each unit system is to be used independently. All references to gallons are to U.S. gallons.