JJG 2056-1990 Active National Metrology and Inspection Regulations JJG

JJG 2056-1990 Measuring Instruments for Length(Gauge Block)

Publish Date: 1990-03-26 Implement Date: 1990-12-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: JJG 2056-1990

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: -

Publish Date: 1990-03-26

Implement Date: 1990-12-01

Publisher: The National Technical Supervision Bureau

Pages: 6 pages

Scope

This verification system table is applicable to the verification of length measuring instruments—gages and measuring instruments closely related to the length of gages. It specifies the use of the national reference for length units (m), the full set of basic measuring instruments included in the reference, the basic metrological parameters of the reference, and the procedure for transferring the value of length units to working measuring instruments with the help of secondary references, working references, and standards. It also indicates their uncertainty, indication error, and basic verification methods.