1.1 本规范涵盖船舶、船只和其他海洋船舶上使用的铸造声音信号钟以及较小钟的舱壁安装板，以符合《国际海上避碰规则公约》（通常称为Colregs）中的规则。 2. 看见 附录X1 . 1.2 钟和隔板安装板的尺寸应如第节所示 4. （参见 附录X2 ). 1.3 为了与国际法规保持一致，所有测量均采用国际单位制。 1.4 以国际单位制表示的数值应视为标准值。 本标准不包括其他计量单位。 1.5 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 cast sound-signalling bells, together with bulkhead mounting plates for the smaller bells, for use on ships, boats, and other marine craft, for compliance with the rules in the convention on the International Regulations for Preventing Collisions at Sea (commonly called Colregs). 2 See Appendix X1 . 1.2 Bells and bulkhead mounting plate shall be sized as indicated in Section 4 (see Appendix X2 ). 1.3 For consistency with International Regulations, all measurements are in SI units. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.5 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.