Standard No.:	JB/T 7927-1999
English Name:	Valve cast steel visual quality requirements
Chinese Name:	阀门铸钢件 外观质量要求
Professional Classification:	JB    Professional Standard - Machinery
Issued by:	CMIF
Issued on:	1999-7-12
Implemented on:	2000-1-1
Status:	superseded
Superseded by:	JB/T 7927-2014 Valve Cast Steel Visual Quality Requirements GB 12231-1989 Valve cast steel visual quality requirements
Superseded on:	2014-11-1
Superseding:	GB 12231-1989 Valve cast steel visual quality requirements
Language:	English
File Format:	PDF
Word Count:	1000 words
Price(USD):	20.0
Delivery:	via email in 1 business day

1 Scope This standard specifies surface defect types and features of valve, flange, pipe fittings and other pressed cast steel. This standard is applicable to visual inspection and acceptance for surface quality of valve, flange, pipe fittings and other pressed cast steel. 2 Evaluation of Surface Quality After cast steel cleaning and repairing and before painting, appearance inspection shall be carried out. Comparison and evaluation shall be carried out for defects on the surface picture according to pictures specified in this standard (see Chapter 4).

Contents Foreword I 1 Scope 2 Evaluation of Surface Quality 3 Explanation of the Rating Pictures 4 Rating Pictures