SN/T 4766-2017 English PDF

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SN/T 4766-2017: Determination of sulfur trioxide in common cement. Ion chromatography
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 4766-2017	169	Add to Cart	3 days	Determination of sulfur trioxide in common cement. Ion chromatography	Valid

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Basic data

Standard ID: SN/T 4766-2017 (SN/T4766-2017)
Description (Translated English): Determination of sulfur trioxide in common cement. Ion chromatography
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: Q11
Word Count Estimation: 7,779
Date of Issue: 2017-05-12
Date of Implementation: 2017-12-01
Regulation (derived from): State-Quality-Inspection-Accreditation (2017) 228
Issuing agency(ies): General Administration of Customs

SN/T 4766-2017: Determination of sulfur trioxide in common cement. Ion chromatography

---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 sulfur trioxide in cement - Ion chromatography) People's Republic of China entry and exit inspection and quarantine industry standards Determination of sulfur trioxide in cement Ion chromatography Released on.2017-05-12 2017-12-01 implementation People's Republic The General Administration of Quality Supervision, Inspection and Quarantine issued

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard is proposed and managed by the National Certification and Accreditation Administration. This standard was drafted. Jiangsu Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China. The main drafters of this standard. Zhang Jian, Feng Yahui, Li Jianjun, Yan Wenxun, Gao Ying, Zheng Jianming, Lu Zhigang, Dai Dongqing, Bao Min, Liu Yijun. Determination of sulfur trioxide in cement Ion chromatography

1 Scope

This standard specifies the method of ion chromatography for the determination of sulfur trioxide in cement. This standard is applicable to the determination of sulfur trioxide content in general Portland cement. The measurement range is. 0.038%~5.20%.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only the dated version applies to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 6379.2 Accuracy of measurement methods and results (accuracy and precision) Part 2. Determination of standard method of measurement Sexuality and basic methods in linearity GB/T 6682 Analytical laboratory water specifications and test methods GB/T 12573 cement sampling method

3 method summary

The sample was dissolved in nitric acid, and the sulfate was introduced into the aqueous solution and measured by an ion chromatograph. Characterize by retention time and quantify by external standard method. Determination The result is based on sulfur trioxide.

4 reagents and materials

Unless otherwise stated, only superior grade reagents and primary water in accordance with GB/T 6682 are used in the analysis. 4.1 Nitric acid ρ = 1.42 g/mL. 4.2 Nitric acid (1 1). 4.3 SO2-4 standard solution (1000mg/L). certified standard substance. 4.4 SO2-4 standard storage solution (100mg/L). Take 10.00mL SO2-4 standard solution (4.3) in 100mL volumetric flask (5.5), use Dilute the water to the mark and mix.

5 instruments and equipment

5.1 Analytical balance. Sensitivity 0.1mg. 5.2 Ion Chromatograph. equipped with a suppressor and conductivity detector. 5.3 IC-H column. 5.4 Nylon filter. 0.22 μm. 5.5 Volumetric flask. 100mL, 250mL. 5.6 square hole sieve. 80μm. ......

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