GB/T 5124.2-2008Methods for chemical analysis of hardmetals - Part 2: Determination of insoluble(free) carbon content - Gravimetric method and gas volumetric method (English PDF)
硬质合金化学分析方法 不溶（游离）碳量的测定 重量法
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Issued by
State Administration for Market Regulation, Standardization Administration of China
Level / Type
National · Recommended
Issue date
May 25, 2026
Implementation date
December 1, 2026
Scope
GB/T 5124.2-2008 is the English-translated version of 硬质合金化学分析方法 不溶（游离）碳量的测定 重量法.
GB/T 5124.2-2008 is the Chinese standard "Methods for chemical analysis of hardmetals - Part 2: Determination of insoluble(free) carbon content - Gravimetric method and gas volumetric method".
It was issued by State Administration for Market Regulation, Standardization Administration of China. Issued on 2026-05-25, in force from 2026-12-01.
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Document preview — GB/T 5124.2-2008
National Standard of the People's Republic of China
- ICS
- 77.160
- Classification
- H16
Issued by: State Administration for Market Regulation, Standardization Administration of China
1 Foreword
GB/T 5124.2-2008 was issued by State Administration for Market Regulation, Standardization Administration of China on 25 May 2026 and has been in force since 1 December 2026.
It is one of 6 parts of the GB/T 5124 series.
2 About this standard
Sector: National Standard (Recommended)
Issued by: State Administration for Market Regulation, Standardization Administration of China
English translation: about 8 pages (approximate)
Chinese original: about 10,153 characters
3 Related standards
Other parts of this standard:
GB/T 5124.1-2008 — Part 1: Determination of total carbon content - Gravimetric method and gas volumetric method
GB/T 5124.1-2026 — Part 1: Determination of total carbon content - Gravimetric method and gas volumetric method
GB/T 5124.3-2017 — Hard metals -- Part 3: Determination of cobalt -- Potentiometric method
GB/T 5124.4-2017 — Hard metals -- Part 4: Determination of titanium content -- Photometric peroxide method
GB/T 5124.5-2024 — Methods for chemical analysis of hardmetals—Part 5: Determination of tantalum and niobium content—Inductively coupled plasma emission spectrometry
Other editions:
GB/T 5124.2-2026 (later edition)
4 Classification and status
International classification (ICS): 77.160
Chinese Standard Classification (CCS): H 16
Prefix GB/T: recommended standard.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 8 pages — is available in the English PDF.
Referenced standards
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Related Standards
GB/T 5124.3-2017 — Hard metals -- Part 3: Determination of cobalt -- Potentiometric method
GB/T 5124.1-1985 — Methods for chemical analysis of hardmetals--The gravimetric method for the determination of total carbon content
GB/T 5124.3-1985 — Methods for chemical analysis of hardmetals. The potentiometric method for the determination of cobalt content
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GB/T 5124.2-2008
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