GB/T 20167-2012
Physical test method of rare earth polishing powder.Determination of burnishing mass and scratch.Gravimetry (English Version)

Standard No.

GB/T 20167-2012

Language

Chinese, Available in English version

Release Date

2012

Published By

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

Latest

GB/T 20167-2012

Replace

GB/T 20167-2006

Scope

This standard specifies the method for the determination of the amount of abrasion and scratches of rare earth polishing powder by double-sided grinding machine. This standard is applicable to the determination of the abrasiveness and scratch rate of rare earth polishing powder mainly composed of cerium-based rare earths. The measurement ranges are: erosion rate 0.05 mg/(cm² min)~0.25 mg/(cm² min), scratch rate 0%~100%.

GB/T 20167-2012 history

• 2012 GB/T 20167-2012 Physical test method of rare earth polishing powder.Determination of burnishing mass and scratch.Gravimetry
• 2006 GB/T 20167-2006 Physical test method of rare earth polishing powder - Determination of burnishing mass - Gravimetric analysis method