1.1 本规范涵盖了用于制造锌压铸合金的铝基和锌基中间合金。铝基母合金（硬化剂）规定的合金成分如所示 表1 . 锌基中间合金规定的合金成分如所示 表2 . 1.2 铝合金硬化剂添加到特殊的高级锌中（根据规范 B6 )在适当的合金化比例下，如所示 表1 ，生产压铸用锌合金。 1.3 锌基中间合金添加到特殊的高级锌中（根据规范 B6 )在适当的合金化比例下，如所示 表3 ，生产压铸用锌合金。 1.4 根据买方的规定，中间合金可以以丸、棒、锭或巨型锭的形式供应。规格 B897 包括台车、块、半块和板坯锭的配置。 1.5 以英寸-磅为单位的数值应视为标准值。括号中给出的值是到国际单位制的数学转换，仅供参考，不被视为标准值。 1.6 本标准并非旨在解决与其使用相关的所有安全问题（如有）。 本标准的用户有责任熟悉所有危险，包括制造商提供的本产品/材料的适当安全数据表（SDS）中确定的危险，建立适当的安全、健康和环境实践，并在使用前确定监管限制的适用性。 1.7 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。

1.1 This specification covers aluminum-base and zinc-base master alloys used to make zinc die-casting alloys. Alloy compositions specified for aluminum-base master alloys (hardeners) are designated as shown in Table 1 . Alloy compositions specified for the zinc-base master alloys are designated as shown in Table 2 . 1.2 Aluminum alloy hardeners are added to Special High Grade zinc (per Specification B6 ) in the proper alloying ratios, as shown in Table 1 , to produce zinc alloys for die casting. 1.3 Zinc-base master alloy is added to Special High Grade zinc (per Specification B6 ) in the proper alloying ratio, as shown in Table 3 , to produce zinc alloy for die casting. 1.4 Master alloys may be supplied in the form of shot, bar, ingot, or jumbo ingot as specified by the purchaser. Specification B897 covers configuration of jumbo, block, half block, and slab ingot. 1.5 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. 1.6 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. 1.7 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.