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Chinese National Standard Category: Mechanics Measurement

English Title: O.T.N.of Superficial Rockwell Hardness Primary Standard
Chinese Title: 表面洛氏硬度基准操作技术规范
Standard No.: JJF 1247-1990
Category No.: A53
Issued by: AQSIQ
Issued on: 1990-1-1
Implemented on: 1999-6-4
Status: valid
Superseded by:
Superseded on:
Abolished on:
Superseding:JJG 1247-1990 O.T.N. of Superficial Rockwell Hardness Primary Standard
Word Count:2500 words
Similar Standards: JJG (交通) 083-2007   JJG (交通) 085-2007   JJG (交通) 081-2007   GB 2823-1981   JJG 557-1988   JJF A 1233-1990   JJG 135-1987   JJG(交通)080-2007   JJG (交通) 082-2007   JJG (交通) 080-2007   JJG (民航) 0087-2006   DB32/T 3976-2021   JJF B 1233-1990   GB/T 335-2019   JJF(石化)005-2015   JJG 686-2015   JJF 1521-2015   JJF 1522-2015   JJG 1113-2015   GB/T 27738-2011  
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