GB/T 21932-2008 English PDF

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GB/T 21932-2008: Nickel and ferronickel -- Determination of sulphur content -- Barium sulfate gravimetric method after alumina chromatographic separation
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 21932-2008	189	Add to Cart	3 days	Nickel and ferronickel -- Determination of sulphur content -- Barium sulfate gravimetric method after alumina chromatographic separation	Valid

Similar standards

GB/T 21931.1   GB/T 21933.1   GB/T 21933.2   GB/T 21931.2   

Basic data

Standard ID: GB/T 21932-2008 (GB/T21932-2008)
Description (Translated English): Nickel and ferronickel -- Determination of sulphur content -- Barium sulfate gravimetric method after alumina chromatographic separation
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H11
Classification of International Standard: 77.100
Word Count Estimation: 8,886
Date of Issue: 2008-05-30
Date of Implementation: 2008-12-01
Quoted Standard: GB/T 6379.1; GB/T 6379.2
Regulation (derived from): National Standard Approval Announcement 2008 No.9 (Total No.122)
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 alumina chromatography-Determination of sulfur content of barium sulfate gravimetric method. Ping standard applies to the determination of nickel and nickel- iron sulfur content. Measuring range (mass fraction): 0. 003% to 0. 20 %.

GB/T 21932-2008: Nickel and ferronickel -- Determination of sulphur content -- Barium sulfate gravimetric method after alumina chromatographic separation

---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.
Nickel and ferronickel. Determination of sulphur content. Barium sulfate gravimctric method after alumina chromatographic separation ICS 77.100 H11 National Standards of People's Republic of China Determination of nickel and nickel-iron sulfur content Alumina chromatographic separation - barium sulfate gravimetric method Posted 2008-05-30 2008-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

Appendix A of this standard is an informative annex. The standard proposed by China Iron and Steel Association. This standard is under the jurisdiction of Metallurgical Industry Information Standards Institute. This standard drafting of the main unit. Shanxi Taigang Stainless Steel AG. The main drafters of this standard. Daixue Qian, Ren Weiping Liu Wei. Determination of nickel and nickel-iron sulfur content Alumina chromatographic separation - barium sulfate gravimetric method Warning. Use of this standard shall have a person experiences regular lab work. This standard does not point out 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

This standard specifies the alumina chromatographic separation - Determination of sulfur content of barium sulfate gravimetric method. This standard applies to the determination of nickel and nickel-iron sulfur content measurement range (mass fraction). 0.003% to 0.20%.

2 Normative reference standard

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. 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) Principle 3 In the presence of an oxidizing agent potassium chlorate with hydrochloric acid - nitric acid to dissolve the sample, perchloric acid smoke, silicon is removed by filtration, the filtrate through activated alumina color Pillared with a lot of noise separation of elements, eluted with dilute aqueous ammonia colored layer column sulfate, barium sulfate gravimetric method for the determination of sulfur content.

4 Reagents and materials

Analysis, unless otherwise stated, use only reagents of analytical grade and distilled water or equivalent to its purity. 4.1 potassium chlorate, solid. 4.2 anhydrous sodium carbonate, solid, excellent grade. 4.3 ethanol. 4.4 hydrofluoric acid, ρ1.15g/mL. 4.5 glacial acetic acid, ρ1.05g/mL. 4.6 Hydrogen peroxide, ρ1.10g/mL. 4.7 perchloric acid, ρ1.67g/mL pure class distinctions. 4.8 hydrochloric acid, ρ1.19g/mL pure class distinctions. 4.9 nitric acid, ρ1.42g/mL pure class distinctions. 4.10 hydrochloric acid, nitric acid, mixed acid, nitric acid in 400mL of water was added 400mL, 200mL of hydrochloric acid, and mix. 4.11 perchloric acid, 1 + 100. 4.12 HCl, 1 + 1. 4.13 HCl, 1 + 20. 4.14 silver nitrate solution, 10g/L. 4.15 ammonium hydroxide, 13 + 1. ......

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