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GB/T 223.65-2012 English PDF

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GB/T 223.65-2012: Steel, iron and alloy -- Determination of cobalt content -- Flame atomic absorption spectrometric method
Status: Valid

GB/T 223.65: Evolution and historical versions

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
GB/T 223.65-2012	English	369	Add to Cart	3 days [Need to translate]	Steel, iron and alloy -- Determination of cobalt content -- Flame atomic absorption spectrometric method	Valid	GB/T 223.65-2012
GB/T 223.65-1988	English	199	Add to Cart	2 days [Need to translate]	Methods for chemical analysis of iron, steel and alloy--The flame atomic absorption spectrometric method for the determination of cobalt content	Obsolete	GB/T 223.65-1988

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Basic data

Standard ID	GB/T 223.65-2012 (GB/T223.65-2012)
Description (Translated English)	Steel, iron and alloy -- Determination of cobalt content -- Flame atomic absorption spectrometric method
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	H11
Classification of International Standard	77.080.01
Word Count Estimation	16,189
Older Standard (superseded by this standard)	GB/T 223.65-1988
Quoted Standard	GB/T 6379.1; GB/T 6379.2; GB/T 6682; GB/T 12805; GB/T 12806; GB/T 12808; GB/T 20066; ISO 5725-3
Adopted Standard	ISO 11652-1997, MOD
Regulation (derived from)	National Standards Bulletin No. 41 of 2012
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary	This standard specifies the flame atomic absorption spectrometry determination of iron content in the drill. This section applies to steel and alloy mass fraction of 0. 003% to 5. 0% of cobalt content.

GB/T 223.65-2012: Steel, iron and alloy -- Determination of cobalt content -- Flame atomic absorption spectrometric method

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Steel, iron and alloy. Determination of cobalt content. Flame atomic absorption spectrometric method ICS 77.080.01 H11 National Standards of People's Republic of China Replacing GB/T 223.65-1988 Determination of steel and alloy cobalt content Flame Atomic Absorption Spectrometry Steel, ironandaloy-Determinationofcobaltcontent- (ISO 11652.1997, MOD) Issued on. 2012-12-31 2013-10-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This section drafted in accordance with GB/T 1.1-2009 given rules. The partial modification of the use of ISO 11652 "Steel cobalt content by flame atomic absorption spectrometry," the structure and technical content (except for some Normative references outside) consistent with. For ease of use, this section made the following editorial changes. a) Remove the preface to international standards; b) reference standards with national standards instead of the corresponding international standards. This portion of the GB/T 223.65-1988 compared, mainly to do with the following modifications. --- The measurement range of 0.01% to 0.5% was adjusted to 0.003% to 5.0%; --- Sample processed by the addition of different acid depending on the sample to dissolve the unity of hydrochloric acid, nitric acid, perchloric smoke; --- Break calibration curve by the calibration curve to unity. This part is proposed by the China Iron and Steel Association. This part of the National Steel Standardization Technical Committee (SAC/TC183) centralized. This part mainly drafted by. National Stainless Steel Products Quality Supervision and Inspection Center, National Steel Products Quality Supervision and Inspection Center, steel Fe Institute. The main drafters of this section. Chenan Yuan, Ma Yuanyuan, Ganzheng Bin, Yaocheng Hu, Luo Qianhua, Cuiqiu Hong. This part of the standard replaces the previous editions are. GB/T 223.65-1988. Determination of steel and alloy cobalt content Flame Atomic Absorption Spectrometry Warning. Use of this section shall be a person experiences regular laboratory work. This section does not indicate that all possible security issues. Users have the responsibility to take appropriate safety and health practices and to ensure compliance with the conditions relevant national regulations.

1 Scope

GB/T 223 provisions of this part of the determination of cobalt content in steel by flame atomic absorption spectrometry. This section applies to steel and alloys for the determination of the mass fraction of 0.003% to 5.0% cobalt content.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 6379.1 measurement methods and results of Accuracy (trueness and precision) - Part 1. General principles and definitions (GB/T 6379.1-2004, ISO 5725-1.1994, IDT) GB/T 6379.2 measurement methods and results of Accuracy (trueness and precision) - Part 2. Determine the standard measurement method to repeat Of the basic methods of reproduction (GB/T 6379.2-2004, ISO 5725-2.1994, IDT) Laboratory use specifications and test methods GB/T 6682 Analysis GB/T 12805 Laboratory glassware Burettes GB/T 12806 Laboratory glassware single marking flask GB/T 12808 Laboratory glassware single marking pipette GB/T 20066 Steel and iron - Sampling and determination of the chemical composition of the sample with a sample preparation method (GB/T 20066-2006, ISO 14284. 1996, IDT) Intermediate precision standard measurement method. ISO 5725-3 measurement methods and results of Accuracy (trueness and precision) - Part 3 measure Principle 3 Sample decomposition with hydrochloric acid and nitric acid, perchloric acid and evaporated to heightening white smoke. The solution is sprayed into the air - acetylene flame, hollow cathode lamp as cobalt Light, atomic absorption spectrometer at a wavelength of 240.7nm, atomic absorption spectroscopy.

4 Reagents

Analysis Unless otherwise stated, use only reagents of recognized analytical grade and GB/T 6682 under the two water. 4.1 iron, cobalt content (mass fraction) of less than 0.0003%. 4.2 pure nickel, cobalt content (mass fraction) of less than 0.0003%. 4.3 hydrochloric acid, ρ about 1.19g/mL. 4.4 nitric acid, ρ about 1.42g/mL. 4.5 perchloric acid, ρ about 1.67g/mL.

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