1.1''This specification covers commercial zinc, zinc-aluminum castings and continuous cast bar stock, as designated and specified in Table 1. Eight alloy compositions are specified and designated as follows:

Common	Traditional	ASTM ^A	UNS
''	''	''	''
Alloy 3	Zamak 3	AG 40A ^B	Z33525
Alloy 7	Zamak 7	AG 40B	Z33527
Alloy 5	Zamak 5	AC 41A ^B	Z35533
Alloy 2	Zamak 2	AC 43A	Z35545
ZA-8	ZA-8	'''...	Z35638
ZA-12	ZA-12	'''...	Z35633
ZA-27	ZA-27	'''...	Z35841
ACuZinc 5^C	''	'''...	Z46541

1.2''Zinc Alloys Z33525, Z33527, Z35533, and Z35545 are used primarily in the manufacture of pressure die castings. Zinc-Aluminum Alloys Z35638, Z35633, and Z35841 are used in the manufacture of both foundry and pressure die castings. These alloys are also fabricated into continuous cast bar stock used for prototyping and screw machine stock.

1.3''The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.4''Systems of nomenclature used to designate zinc and zinc-aluminum (ZA) alloys used for casting are described in Appendix X1.

1.5''This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to become familiar with all hazards including those identified in the appropriate Safety Data Sheet (SDS) for this product/material as provided by the manufacturer, to establish appropriate safety, health, and environmental practices, and determine the applicability of regulatory limitations prior to use.

1.6''This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.