T/LZZLXH 053-2021 Active Group standards

T/LZZLXH 053-2021 Chemical laboratory standard material management guidebook

Publish Date: 2021-01-25 Implement Date: 2021-02-26 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/LZZLXH 053-2021

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Economic and cultural

ICS Name: Integrated services

Publish Date: 2021-01-25

Implement Date: 2021-02-26

Scope

Main Technical Content: 4.1 General Requirements - The chemical laboratory (hereinafter referred to as "the laboratory") shall have standard material management personnel, who are responsible for coordinating and managing the purchase, acceptance, storage, use, periodic verification, and decommissioning of standard materials. - The laboratory shall have relevant procedures for transporting, storing, and using standard materials to prevent contamination or damage. - The laboratory shall maintain records of standard material management for at least 3 years or in accordance with relevant regulations. 4.2 Selection and Purchase of Certified Standard Materials - The laboratory shall select and purchase certified standard materials in accordance with the requirements of GB/T 27025-2008, Section 4.6: - The laboratory shall prioritize selecting certified standard materials listed in the "Catalogue of Standard Materials of the People's Republic of China"; - If the catalogue does not include the certified standard materials required by the laboratory, they may also select certified standard materials provided by relevant domestic industry departments or foreign production organizations. - The laboratory shall ensure that the selected certified standard materials meet the following requirements: - Clear traceability and uncertainty statements; - Preparation, value assignment, and certification of the certified standard materials in accordance with the effective procedures specified in JJF 1342-2012, JJF 1343-2012, and GB/T 15000. - The uncertainty level of the certified standard material characteristics shall match the requirements of the measurement limits. - Regularly evaluate and verify the qualifications of suppliers of certified standard materials. - For certified standard materials classified as dangerous chemicals or precursors of dangerous chemicals, their purchase shall comply with relevant national regulations. 4.3