This specification covers refined gold of Grades 99.5, 99.95, 99.99, and 99.995 in cast bar forms. Other forms of unfabricated gold of commerce are not to be excluded under this specification. The metal may be produced by any refining process that yields products capable of meeting the specified chemical composition requirements. Chemical assessment samples may be taken from the melt before pouring and shall be in the form of shots or pins, or by other alternative means on agreement between the manufacturer and purchaser.

1.1 This specification covers refined gold in cast bar form (Note 1).

1.1.1 Grade 99.5—Gold having a minimum fineness of 995.

1.1.2 Grade 99.95—Gold having a minimum fineness of 999.5.

1.1.3 Grade 99.99—Gold having a minimum fineness of 999.9.

1.1.4 Grade 99.995—Gold having a minimum fineness of 999.95.

1.2 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.

1.3 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 Material Safety Data Sheet (MSDS) for this product/material as provided by the manufacturer, to establish appropriate safety and health practices, and determine the applicability of regulatory limitations prior to use.