SN/T 2091-2008 English PDF

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SN/T 2091-2008: Determination of lead, copper, iron and bismuth contents in antimony ingot for import and export. Atomic absorption spectrometric method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 2091-2008	209	Add to Cart	3 days	Determination of lead, copper, iron and bismuth contents in antimony ingot for import and export. Atomic absorption spectrometric method	Valid

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Basic data

Standard ID: SN/T 2091-2008 (SN/T2091-2008)
Description (Translated English): Determination of lead, copper, iron and bismuth contents in antimony ingot for import and export. Atomic absorption spectrometric method
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: H25
Classification of International Standard: 77.040
Word Count Estimation: 8,851
Date of Issue: 2008-04-29
Date of Implementation: 2008-11-01
Quoted Standard: GB/T 602; GB/T 15337
Regulation (derived from): National-accreditation-Science [2012] 57
Issuing agency(ies): General Administration of Customs
Summary: This standard specifies the import and export of lead antimony, copper, iron, bismuth content by atomic absorption spectrometric method. This standard applies to imports of lead antimony, copper, iron, bismuth content. Measuring range: 0. 010% 0. 75% Pb, 0. 002% Cu 0. 25%, Fe 0. 002% 0. 25%, 0. 0020% to 0. 10% of bismuth.

SN/T 2091-2008: Determination of lead, copper, iron and bismuth contents in antimony ingot for import and export. 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.
Determination of lead, copper, iron and bismuth contents in antimony ingot for import and export.Atomic absorption spectrometric method Exit inspection and quarantine industry standard book People's Republic of China Determination of Antimony in import and export of lead, copper, iron, bismuth content Atomic Absorption Spectrometry Posted 2008-04-29 2008-11-01 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released

Foreword

Appendix A of this standard is an informative annex. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard was drafted. People's Republic of China Guangdong CIQ. The main drafters of this standard. Guo Seoul, hair autumn Mei, Xie Hong, Lu Zhenguo, Zhong Zhiguang, Dong Ying, Peng Zhimin. This standard is the first release of the entry-exit inspection and quarantine industry standards. Determination of Antimony in import and export of lead, copper, iron, bismuth content Atomic Absorption Spectrometry

1 Scope

This standard specifies the import and export of antimony ingots of lead, copper, iron, bismuth content - Atomic absorption spectrometric method. This standard is applicable to the determination Importers and Antimony in lead, copper, iron, bismuth content in. Measurement range. 0.010% ~ 0.75% lead; 0.002% copper ~ 0.25%; Fe 0.002% - 0.25%; 0.002% to 0.10% of bismuth.

2 Normative references

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. Preparation of standard solution of GB/T 602 Determination of impurities in chemical reagents GB/T 15337 General Atomic absorption spectrometry

3 Method summary

Samples with hydrochloric acid, nitric acid decomposition, to control the acidity, adding tartaric acid to prevent hydrolysis of antimony by atomic absorption spectrometry were measured lead, copper, iron, Bismuth content.

4 Reagents

Unless otherwise indicated in the analysis using only recognized as analytical grade reagents and distilled or deionized water or water of equivalent purity. 4.1 High Purity Antimony. (Sb) ≥99.99%, (Pb) ≤0.0010%, (Cu) ≤0.0005%, (Fe) ≤0.0005%, (Bi) ≤ 0.0005%; ground to a powder. 4.2 hydrochloride (ρ1.19g/mL). Nitrate 4.3 (ρ1.42g/mL). 4.4 HCl (1 + 1). 4.5 nitric acid (1 + 1). 4.6 tartaric acid solution (200g/L). 4.7 lead standard stock solution (1000μg/mL). according to GB/T 602 method of preparation, or directly using standard material. 4.8 lead standard solution (100μg/mL). Pipette 10.00mL lead standard stock solution (4.7) into 100mL volumetric flask. 10mL hydrochloric acid (4.4), dilute to the mark and mix. 4.9 copper standard stock solution (1000μg/mL). according to GB/T 602 method of preparation, or directly using standard material. 4.10 copper standard solution (100μg/mL). Pipette 10.00mL copper standard stock solution (4.9) into 100mL volumetric flask. 10mL hydrochloric acid (4.4), dilute to the mark and mix. 4.11 iron standard stock solution (1000μg/mL). according to GB/T 602 method of preparation, or directly using standard material. 4.12 iron standard solution (100μg/mL). Pipette 10.00mL iron standard stock solution (4.11) into 100mL volumetric flask. 10mL hydrochloric acid (4.4), dilute to the mark and mix. 4.13 Bismuth standard stock solution (1000μg/mL). according to GB/T 602 method of preparation, or directly using standard material. ......

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