Standard No.:	GB/T 3612-2008
English Name:	Cemented carbide blanks for gauge blocks or measuring tools
Chinese Name:	量规、量具用硬质合金毛坯
Chinese Classification:	H72    Powder metallurgy material and product
Professional Classification:	GB    National Standard
Issued by:	AQSIQ
Issued on:	2008-6-9
Implemented on:	2008-12-1
Status:	superseded
Superseded by:	GB/T 10565-1989 Blank for hard metal(carbide) gauge blocks
Superseded on:	1990-1-1
Superseding:	GB/T 10565-1989 Blank for hard metal(carbide) gauge blocks GB/T 3612-1989 As-sintered hardmetal blanks used in measuring tools
Language:	English
File Format:	PDF
Word Count:	9000 words
Price(USD):	270.0
Delivery:	via email in 1~3 business day

本标准代替ＧＢ／Ｔ１０５６５—１９８９《硬质合金量规毛坯》和ＧＢ／Ｔ３６１２—１９８９《量具用硬质合金毛坯》。本标准规定了量感规、量具用硬质合金毛坯产品的要求、检验规则、试验方法和标志、包装、运输、储存及订货单内容。本标准适用于量规、量具用硬质合金毛坯。本标准与ＧＢ／Ｔ１０５６５—１９８９、ＧＢ／Ｔ３６１２—１９８９相比，主要变化如下：
———本标准的名称修改为《量规、量具用硬质合金毛坯》；
———修改了尺寸允许偏差；
———修改了掉边角允许偏差；
———删除了原标准中普通级公差标准。