Standard No.:	QB/T 1987-2013
English Name:	Analogue quartz clocks for public use
Chinese Name:	公共用指针式石英大钟
Chinese Classification:	Y11    Horology
Professional Classification:	QB    Professional Standard - Light Industry
ICS Classification:	39.040.20 39.040.20    Clocks 39.040.20
Source Content Issued by:	Ministry of Industry and Information Technology
Issued on:	2013-10-17
Implemented on:	2014-3-1
Status:	valid
Superseding:	QB/T 1987-2005 Quartz clocks for public use
Target Language:	English
File Format:	PDF
Word Count:	4000 words
Translation Price(USD):	120.0
Delivery:	via email in 1~3 business day

本标准规定了公共用指针式石英大钟的分类、要求、试验方法、检验规则和标志、包装、运输、贮存、安装。
本标准适用于以石英晶体振荡器频率为时间基准，应用于公共场所，分针回转直径不小于0.4 m的指针式石英大钟。大钟机心亦可参照使用。