GB/T 223.40-2007 English Version, GB/T 223.40-2007 Iron, Steel and Alloy - Determination of Niobium Content by the Sulphochlorophenol S Spectrophotometric Method (English Version)

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GB/T 223.40-2007 Iron, Steel and Alloy - Determination of Niobium Content by the Sulphochlorophenol S Spectrophotometric Method (English Version)
Standard No.:	GB/T 223.40-2007	Status:	valid remind me the status change Email:
Language:	English	File Format:	PDF
Word Count:	2500 words	Price(USD):	50.00 remind me the price change Email:
Implemented on:	2007-10-1	Delivery:	immediately

Standard No.:	GB/T 223.40-2007
English Name:	Iron, Steel and Alloy - Determination of Niobium Content by the Sulphochlorophenol S Spectrophotometric Method
Chinese Name:	钢铁及合金铌含量的测定氯磺酚S分光光度法
Chinese Classification:	H11 Steel and iron alloy analysis method
Professional Classification:	GB National Standard
ICS Classification:	77.040.30 77.040.30 Chemical analysis of metals 77.040.30
Issued by:	AQSIQ; SAC
Issued on:	2007-03-09
Implemented on:	2007-10-1
Status:	valid
Superseding:	GB/T 223.40-1985 Methods for chemical analysis of iron,steel and alloy; The anion-exchange separation-sulphochlorophenol S photometric method for the determination of niobium content GB/T 223.39-1994 Methods for chemical analysis iron,steel and alloy The sulphochlorophenol S photometric method for the determination of niobium content
Language:	English
File Format:	PDF
Word Count:	2500 words
Price(USD):	50.00
Delivery:	via email in 1 business day

Referred in GB/T 223.40-2007:

*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) ofmeasurement methods and results - Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
*GB/T 20066-2006 Steel and Iron-Sampling and Preparation of Samples for the Determination of Chemical Composition

GB/T 223.40-2007 is referred in:

Standard

GB/T 223.40-2007 Iron, Steel and Alloy - Determination of Niobium Content by the Sulphochlorophenol S Spectrophotometric Method (English Version)
Standard No.	GB/T 223.40-2007
Status	valid
Language	English
File Format	PDF
Word Count	2500 words
Price(USD)	50.0
Implemented on	2007-10-1
Delivery	via email in 1 business day

Detail of GB/T 223.40-2007

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ICS Classification

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Introduction of GB/T 223.40-2007

This Part of GB/T 223 specifies the determination of niobium content by the sulphochlorophenol S spectrophotometric method. This Part is applicable to determination of niobium content in carbon steel and low alloy steel with a mass fraction of 0.010%~0.50 %.

Contents of GB/T 223.40-2007

Foreword I 1 Scope 2 Normative References 3 Principles 4 Reagents 5 Instruments 6 Sampling and Sample Preparation 7 Analytical Procedure 8 Result Calculations 9 Precision 10 Test Report Appendix A (Informative) Additional Information on Common Precision Test

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