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GB/T 20124-2006 English PDF

GB/T 20124-2006_English: PDF (GB/T20124-2006)
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GB/T 20124-2006English85 Add to Cart 0--9 seconds. Auto-delivery Steel and iron -- Determination of nitrogen content -- Thermal conductimetric method after fusion in a current of inert gas Valid GB/T 20124-2006


BASIC DATA
Standard ID GB/T 20124-2006 (GB/T20124-2006)
Description (Translated English) Steel and iron. Determination of nitrogen content. Thermal conductimetric method after fusion in a current of inert gas
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard H11
Classification of International Standard 77.080.01
Word Count Estimation 11,119
Date of Issue 2006-03-02
Date of Implementation 2006-09-01
Adopted Standard ISO 15351-1999, IDT
Drafting Organization CISRI
Administrative Organization National Steel Standardization Technical Committee
Regulation (derived from) China National Standard Approval Announcement 2006 No.3 (Total No.90)
Proposing organization China Iron and Steel Association
Issuing agency(ies) Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China; Standardization Administration of China
Summary This standard specifies the determination of nitrogen in steel inert gas fusion thermal conductivity method after. This method is suitable for the mass fraction of iron and steel of 0. 002% to 0. 6 % nitrogen content.


GB/T 20124-2006 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 77.080.01 H 11 GB/T 20124-2006 / ISO 15351.1999 Steel and iron - Determination of nitrogen content - Thermal conductimetric method after fusion in a current of inert gas (Routine method) (ISO 15351.1999, IDT) ISSUED ON. MARCH 2, 2006 IMPLEMENTED ON. SEPTEMBER 1, 2006 Issued by. General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration Committee. Table of Contents Foreword ... 3  1 Scope ... 4  2 Normative references ... 4  3 Principle... 5  4 Reagents and materials ... 5  5 Apparatus ... 6  6 Sampling ... 7  7 Procedure ... 7  8 Expression of results ... 9  9 Test report ... 10  Annex A (Informative) Examples of diagram for analytical principles ... 12  Annex B (Informative) Additional information on the international cooperative tests ... 14  Annex C (Informative) Graphical representation of precision data ... 16  Foreword This Standard identically uses ISO 15351.1999 Steel and iron - Determination of nitrogen content - Thermal conductimetric method after fusion in a current of inert gas (Routine method). This Standard is an identical translation of ISO 15351.1999. For easy use, this Standard made the following editorial modifications. a) modified “this International Standard” to “this Standard”; b) used decimal point “.” to replace “,” used as decimal point in ISO 15350.2000; c) deleted the foreword of ISO 15351.1999. Annex A, Annex B and Annex C of this Standard are informative. This Standard was proposed by China Iron and Steel Industry Association. This Standard shall be under the jurisdiction of National Technical Committee on Steel of Standardization Administration of China. Main drafting organization of this Standard. Iron and Steel Research Institute. Main drafter of this Standard. Hu Luofei. Steel and iron - Determination of nitrogen content - Thermal conductimetric method after fusion in a current of inert gas (Routine method) 1 Scope This Standard specifies a thermal conductimetric method after fusion under inert gas for the determination of nitrogen in steel and iron. The method is applicable to nitrogen contents between 0.002% (m/m) and 0.6% (m/m). 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. ISO Guide 31 .1981, Contents of certificates of reference materials. ISO Guide 35.1989, Certification of reference materials - General and statistical principles. ISO 385-1.1984, Laboratory glassware - Burettes - Part 1. General requirements ISO 648. 1977, Laboratory glassware - One-mark pipettes. ISO 1042.1998, Laboratory glassware - One-mark volumetric flasks. ISO 3696.1987, Water for analytical laboratory use - Specification and test methods. ISO 5725-1.1994, Accuracy (trueness and precision) of measurement methods and results - Part 1. General principles and definitions. ISO 5725-2.1994, Accuracy (trueness and precision) of measurement ......

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