DZ/T 0101.12-1994
Active
JJG 21-2008
Active
National Metrology and Inspection Regulations JJG
JJG 21-2008 Micrometer
JJG 21-2008 Micrometer
Basic Information
Standard Code:
JJG 21-2008
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
-
ICS Name:
-
Publish Date:
2008-03-25
Implement Date:
2008-09-25
Pages:
22 pages
Scope
This procedure applies to micrometers with a graduation value of 0.01 mm and a maximum measuring range of 500 mm for external diameters; plate thickness and wall thickness micrometers with a maximum measuring range of 25 mm; and digital external diameter micrometers with a resolution of 0.001 mm and 0.000 1 mm and a maximum measuring range of 500 mm for initial verification, subsequent verification, and in-use inspection.
Development Information
Replace the following standards
JJG 21-1995
Referenced Standards
Related Standards
JJG 204-1980
Active
JJG 204-1980 Meteorological Ventilation Psychrometer
SC 53-1980
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SC 53-1980 Transfer blade hydraulic steering gear repair quality standard
DZ 4-1981
Replaced
DZ 4-1981
SC 69-1982
Active
SC 69-1982 ZSS-12 Flash-type seawater desalination production device technical specifications
SC 72-1982
Active