JJF 2341-2025 Active National Metrology Technical Specifications JJF

JJF 2341-2025 Calibration Specification for On‑line Analyzers for Residual Chlorine

Publish Date: 2025-11-05 Implement Date: 2026-05-05 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: JJF 2341-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: -

Publish Date: 2025-11-05

Implement Date: 2026-05-05

Pages: 20 pages

Scope

This specification applies to the calibration of online chlorine residual analyzers with a measurement range not exceeding 20 mg/L based on the colorimetric method, including analyzers that measure free chlorine and/or total chlorine in water.

Development Information

Word Count: 21 Thousand words Pages: 20 pages

Referenced Standards

JJF 1609-2017 Calibration Specification for Residual Chlorine Meters GB/T 5750.11-2023 Standard examination methods for drinking water—Part 11:Disinfectants indices HJ 586-2010 Water quality determination of free and total chlorine using N,N-diethyl-1,4-phenylene diamine spectrophotometry

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