GB/T 2491-2003
Bonded abrasive products--Hardness grade measurement by rockwell tester

Be replaced

Standard No.

GB/T 2491-2003

Language

Chinese

Release Date

2003

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Replace By

GB/T 2490-2007

Lastest

GB/T 2490-2018

Scope

This standard specifies the method for checking the hardness of abrasive tools by Rockwell hardness tester. This standard is applicable to vitrified bond and resin bond ordinary abrasive tools with abrasive particle size from F100 to F1200.

GB/T 2491-2003 history

• 2018 GB/T 2490-2018 Bonded abrasive products.Hardness grade measurement
• 2007 GB/T 2490-2007 Bonded abrasive products.Hardness grade measurement
• 2003 GB/T 2491-2003 Bonded abrasive products--Hardness grade measurement by rockwell tester

GB/T 2491-2003 Bonded abrasive products--Hardness grade measurement by rockwell tester was changed to GB/T 2490-2007 Bonded abrasive products.Hardness grade measurement.