A68 - Physical Chemical Component Standard Substance

DB14/T 2461-2022 in English

VALID

Issued on:2022-04-29 | Implemented on:2022-07-29

GB/T 15000.3-2008 in English

Directives for the work of reference materials - Reference materials - General and statistical principles for certification

SUPERSEDED

Issued on:2008-03-07 | Implemented on:2008-08-01

JJF 1006-1994 in English

Technical Norm of Primary Reference Material

VALID

Issued on:1994-07-20 | Implemented on:1994-12-01