QB/T 3731-1999
Standard test method for vickers hardness of glazed domestic ceramic ware (English Version)

Standard No.

QB/T 3731-1999

Language

Chinese, Available in English version

Release Date

1982

Published By

Professional Standard - Light Industry

Status

Be replaced 2015-10

Replace By

QB/T 4780-2015

Latest

QB/T 4780-2015

Scope

This method is suitable for the determination of Vickers hardness of glazed surfaces of daily pottery, stoneware, and porcelain. The glazed Vickers hardness of pottery, stoneware, and porcelain is measured by using a diamond square pyramid indenter with an angle of 136° between two opposite sides. Under a certain load, the surface of the sample to be measured is pressed. After the loading time, remove the load and measure the diagonal length of the indentation to determine. Therefore, the hardness measured by this method is essentially the relative hardness of the sample surface to the diamond indenter.

QB/T 3731-1999 history

• 2015 QB/T 4780-2015 Test method for Vickers hardness of domestic ceramic glaze
• 1982 QB/T 3731-1999 Standard test method for vickers hardness of glazed domestic ceramic ware

QB/T 3731-1999 Standard test method for vickers hardness of glazed domestic ceramic ware was changed to QB/T 4780-2015 Test method for Vickers hardness of domestic ceramic glaze.