JJF 1949-2021 Active National Metrology Technical Specifications JJF

JJF 1949-2021 Calibration Specification for Water Hardness Meters

Publish Date: 2021-12-28 Implement Date: 2022-06-28 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: JJF 1949-2021

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: -

Publish Date: 2021-12-28

Implement Date: 2022-06-28

Pages: 16 pages

Scope

This standard applies to the calibration of desktop and portable water quality hardness meters whose measurement principle is either colorimetry or electrode method.

Development Information

Word Count: 21 Thousand words Pages: 16 pages

Referenced Standards

GB/T 6682-1992 Water for analytical laboratory use—Specification and test methods GB/T 6682-2008 Water for analytical laboratory use—Specification and test methods

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