scope:

General

This Standard for cast copper alloy solder joint pressure fittings designed for use with copper water tube, establishes requirements for:

(a) pressure-temperature ratings;

(b) abbreviations for end connections;

(c) sizes and method of designating openings of fittings;

(d) marking;

(e) material;

(f) dimensions and tolerances; and

(g) tests.

Units of Measurement

The values stated in either U.S. Customary (inch-lb.) or SI (metric) units of measure shall be regarded separately as standard. Within the main text, U.S. Customary units are given. For convenience, the SI units are shown in parentheses and in Nonmandatory Annex B. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other.

NOTE: Combining values from the two systems may result in nonconformance with the Standard.

Convention

For the purpose of determining conformance with this Standard, the convention for fixing significant digits where units, maximum or minimum values, are specified shall be "rounding off' as defined in ASTM Practice E 29. This requires that an observed or calculated value shall be rounded off to the nearest unit in the last right-hand digit used for expressing the limit.

Quality System

Requirements relating to the product manufacturer's Quality System Programs are described in Nonmandatory Annex E.