DZ 57.13-1987
Time quota optical parts processing for geological instrumentation industry (English Version)

Standard No.

DZ 57.13-1987

Language

Chinese, Available in English version

Release Date

1988

Published By

Professional Standard - Geology

Latest

DZ 57.13-1987

Scope

This standard specifies the processing time quotas for each process of optical parts. This standard applies to the processing of optical parts in the geological instrumentation industry. The measurement units used in this standard are: minutes (min) for time, millimeters (mm) for length, and minutes (') for angles.

DZ 57.13-1987 history

• 1988 DZ 57.13-1987 Time quota optical parts processing for geological instrumentation industry