SJ 3228.7-1989
Determination of Chromium in high purity arenaceous quartz (English Version)

Standard No.

SJ 3228.7-1989

Language

Chinese, Available in English version

Release Date

1989

Published By

Professional Standard - Electron

Status

Be replaced 2016-06

Replace By

SJ/T 3328.7-2016

Latest

SJ/T 3328.7-2016

Scope

This standard is applicable to the analysis of various grades of high-purity quartz sand.

SJ 3228.7-1989 history

• 2016 SJ/T 3328.7-2016 High purity quartz sand for electronic products Part 7 Determination of Chromium
• 1989 SJ 3228.7-1989 Determination of Chromium in high purity arenaceous quartz

SJ 3228.7-1989 Determination of Chromium in high purity arenaceous quartz was changed to SJ/T 3328.7-2016 High purity quartz sand for electronic products Part 7 Determination of Chromium.