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GB/T 12689.12-2004The methods for chemical analysis of zincand zinc alloys--The determination of lead, cadmium, iron, copper, tin, aluminium, arsenic, stibium, magnesium lanthanum and cerium contents--The inductively coupled plasma-optical emission spectrometric method (English PDF)

锌及锌合金化学分析方法 铅、镉、铁、铜、锡、铝、砷、锑、镁、镧、铈量的测定 电感耦合等离子体--发射光谱法

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Issued by

General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Standardization Administration of China

Level / Type

National · Recommended

Issue date

April 30, 2004

Implementation date

October 1, 2004

Scope

GB/T 12689.12-2004 is the English-translated version of 锌及锌合金化学分析方法 铅、镉、铁、铜、锡、铝、砷、锑、镁、镧、铈量的测定 电感耦合等离子体--发射光谱法.

GB/T 12689.12-2004 is the Chinese national standard on the methods for chemical analysis of zincand zinc alloys--the determination of lead, cadmium, iron, copper, tin, aluminium, arsenic, stibium, magnesium lanthanum and cerium contents--the inductively coupled plasma-optical emission spectrometric method, in the field of metallurgy.

The /T suffix marks it as a recommended standard: it is not compulsory by itself, but it becomes binding as soon as a contract, a tender or a customer specification calls it up — which in practice is how most foreign buyers meet it.

It was issued on 30 April 2004 by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Standardization Administration of China, and has been in force since 1 October 2004.

Classification: ICS 77.040.30, CCS H13. This page is published from the official record of the standard held by the Chinese standards administration: the identification, the dates, the classification and the issuing body are taken from there.

The clause text, the tables and the numeric limits are in the document itself, which is delivered complete in English translation.

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Document preview — GB/T 12689.12-2004

National Standard of the People's Republic of China

ICS
77.040.30
Classification
H13

Issued by: General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Standardization Administration of China

Contents

  • Foreword
  • 1 Scope
  • 2 Principle of the method
  • 3 Reagents and materials
  • 4 Apparatus
  • 5 Test specimens
  • 6 Analytical procedure
  • 7 Calculation of the analytical results
  • 8 Precision
  • 9 Quality assurance and control
  • Annex A (informative) Instrument operating conditions

3 Reagents and materials

4 Apparatus

5 Test specimens

6 Analytical procedure

7 Calculation of the analytical results

8 Precision

9 Quality assurance and control

Foreword

This document was issued on 30 April 2004 by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China and the Standardization Administration of China, and has been in force since 1 October 2004.

It replaces GB/T 12689.12-1990.

Classification: ICS 77.040.30, CCS H13.

About this edition

GB/T 12689.12-2004 is the current edition. It was issued on 30 April 2004 and has been in force since 1 October 2004, replacing GB/T 12689.12-1990.

GB/T 12689.12-1990 has been superseded: a specification that still cites it is citing a withdrawn edition.

The interval between issue and effect is the transition period. It exists so that producers, laboratories and buyers can requalify products, revise procedures and use up documentation before the new text becomes the one that applies. The date on this page is the official one from the record of the Standardization Administration.

Classification and status

GB/T 12689.12-2004 is classified under ICS 77.040.30, in the field of metallurgy. ICS is the International Classification for Standards, the same scheme used by ISO and by the national bodies of most countries, which is what allows a Chinese standard to be placed beside its foreign counterparts on subject rather than on number.

Its Chinese Standard Classification code is CCS H13. CCS is the domestic scheme, a letter for the sector and two digits for the subject within it, and it is the code by which the standard is filed and searched in China.

The GB/T prefix marks a recommended national standard. It is not, in itself, law: it becomes binding when a contract names it, when a regulation or a mandatory standard refers to it, or when a producer declares conformity with it. In practice that covers most of the cases in which it will be read — a purchase specification, an inspection agreement or a certification scheme.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 8 pages — is available in the English PDF.

Referenced standards

Similar standards

Editions of GB/T 12689.12

EditionTitleRevisionStatus
GB/T 12689.12-2004The methods for chemical analysis of zincand zinc alloys--The determination of lead, cadmium, iron, copper, tin, aluminium, arsenic, stibium, magnesium lanthanum and cerium contents--The inductively coupled plasma-optical emission spectrometric methodcurrent editionCurrent
GB/T 12689.12-1990Zinc and zinc alloys-Determination of cadmium content-Flame atomic absorption spectrometric methodprevious editionSuperseded

This page sells the current edition, GB/T 12689.12-2004. Earlier editions are listed for reference only.

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