GB/T 4702.16-2025 Active National standards

GB/T 4702.16-2025 Chromium metal—Determination of sulfur content—Infrared absorption method and combustion-neutralization titration method

Publish Date: 2025-08-29 Implement Date: 2026-03-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 4702.16-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Analysis methods for steel and iron alloys

ICS Name: Iron alloy

Publish Date: 2025-08-29

Implement Date: 2026-03-01

Pages: 20 pages

Scope

This document describes the methods of determining the sulfur content in metallic chromium using infrared absorption and combustion neutralization titration.
This document is applicable to the determination of sulfur content in metallic chromium. The measurement range of infrared absorption (mass fraction): 0.0005%~0.045%; the measurement range of combustion neutralization titration (mass fraction): 0.005%~0.070%.

Development Information

Word Count: 25 Thousand words Pages: 20 pages

Same series standard

GB/T 4702.2-2025 Chromium metal—Determination of silicon content—Perchloric acid gravimetric method and molybdenum blue spectrophotometric method

Replace the following standards

GB/T 4702.16-2008 Chromium metal—Determination of sulfur content—Infrared absorption method and combustion-neutralization titration method

Referenced Standards

GB/T 4010-1994 Ferroalloys—Sampling and preparation of samples for chemical analysis GB/T 4010-2015 Ferroallys sampling and preparation of samples for chemical analysis GB/T 6379.1-2004 Accuracy(trueness and precision)of measurement methods and results—Part 1:General principles and definitions GB/T 6379.2-2004 Accuracy(trueness and precision)of measurement methods and results—Part 2:Basic method for the determination of repeatability and reproducibility of a standard measurement method GB/T 6379.3-2012 Accuracy(trueness and precision)of measurement methods and results—Part 3:Intermediate measures of the precision of a standard measurement method 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 GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values

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