Standard No.:	GB/T 223.69-2008
English Name:	Iron, Steel and Alloy-Determination of Carbon Contents- Gas-volumetric Method after Combustion in the Pipe Furnace
Chinese Name:	钢铁及合金 碳含量的测定 管式炉内燃烧后气体容量法
Chinese Classification:	H11    Steel and iron alloy analysis method
Professional Classification:	GB    National Standard
Issued by:	AQSIQ, SAC
Issued on:	2008-05-13
Implemented on:	2008-11-1
Status:	valid
Superseding:	GB/T 223.69-1997 Methods for chemical analysis of iron,steel and alloy The gas- volumetric method after combustion in the pipe furnace for the determination of carbon content
Language:	English
File Format:	PDF
Word Count:	16000 words
Price(USD):	140.0
Delivery:	via email in 1 business day

1 Scope This Part of GB/T 223 specifies the gas-volumetric method after combustion in the pipe furnace for the determination of carbon content. This Part is applicable to the determination of carbon content in steel, iron, high temperature alloy and precious alloy with the mass fraction being 0.10%~2.00%. 2 Normative References The following standards contain provisions which, through reference in this part of GB/T 223, constitute provisions of this part. For dated reference, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, the parties whose enter into agreement according to this Part are encouraged to research whether the latest editions of these references are applied or not. For undated references, the latest edition of the normative document is applicable to this standard.

Contents 1 Scope 2 Normative References 3 Principles 4 Reagents and materials 5 Instruments and Equipments 6 Sampling and Sample Preparation 7 Analytical Procedures 8 Result calculation 10 Test Report