1.1         This standard specifies:

(a)          requirements for the manufacturing, alloying and testing of gold articles of 23, 22, 20, 18, 15, 14, 12, 10 and 9 kt gold;

(b)         requirements for findings and solders to be used in the manufacture of gold articles;

(c)          methods for assaying gold, alloyed gold, solder, findings and gold articles;

(d)         non-destructive testing of gold articles by X-ray fluorescence spectroscopy (XRF); and

(e)          requirements for making and labelling of imported gold articles.

NOTE 1 It does not specify requirements for design of gold articles and does not apply to gold articles intended for industrial purpose such as dentistry, electronics, official coins, gold bars and other such uses.

  This standard specifies:

a a)  requirements for the manufacturing, alloying and testing of gold articles of 23, 22, 20, 18, 15, 14,12, 10 and 9 kt gold;

b b) requirements for findings and solders to be used in the manufacture of gold articles;

c c) methods for assaying gold, alloyed gold, solder, findings and gold articles; and

d d) requirements for marking and labelling of imported gold articles.

 
NNOTE It does not specify requirements for design of gold articles and does not apply to gold articles intended for industrial purposes such as dentistry, electronics, official coins, gold bars and other such uses.

This document specifies the general requirements and tests for safety devices for fuel gases and oxygen or compressed air which do not incorporate a flame (flashback) arrestor used downstream of manifold, cylinder and/or pipeline outlet regulators, and upstream of blowpipes for welding, cutting and allied processes. This document does not specify the location of these devices in the gas system. This document is not applicable to safety devices which incorporate a flame arrestor, covered by ISO 5175-1.