Standard No.:	JB/T 7991-2014
English Name:	Superabrasive products. Symbol and designation for electroplated products
Chinese Name:	超硬磨料制品 电镀制品代号和标记
Professional Classification:	JB    Professional Standard - Machinery
Issued by:	Ministry of Industry and Information Technology
Issued on:	2014-05-06
Implemented on:	2014-10-1
Status:	valid
Superseding:	JB/T 7991.1-2001 Symbol and designation for electroplated superabrasive products
Language:	English
File Format:	PDF
Word Count:	2000 words
Price(USD):	194.0
Delivery:	via email in 1 business day

1 Scope This standard specifies the symbol and designation for electroplated inner cutting disc, electroplated needle file and electroplated grinding head. This standard is applicable to the metallic bond superabrasive products, electroplated inner circle cutting disc, electroplated needle file and electroplated grinding head. 2 Normative References The following documents for the application of this document are essential. For dated reference, only the edition cited applies. For undated references, the latest edition of the normative document (including any amendments) applies. GB/T 6408 Super Abrasive - Cubic Boron Nitride GB/T 23536 Superabrasive - Types of Synthetic Diamond 3 Shape and Symbol

Foreword i 1 Scope 2 Normative References 3 Shape and Symbol 3.1 Electroplated Inner Cutting Disc 3.2 Electroplated Needle File 3.3 Electroplated Grinding Head 4 Binder Symbol 5 Abrasive Symbol 6 Dimension Symbol 7 Designation 7.1 Writing Order 7.2 Designation Example