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SN/T 4118-2015 English PDF

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SN/T 4118-2015: Determination of short-chain chlorinated paraffins in paints and coatings
Status: Valid
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SN/T 4118-2015English169 Add to Cart 3 days [Need to translate] Determination of short-chain chlorinated paraffins in paints and coatings Valid SN/T 4118-2015

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Basic data

Standard ID SN/T 4118-2015 (SN/T4118-2015)
Description (Translated English) Determination of short-chain chlorinated paraffins in paints and coatings
Sector / Industry Commodity Inspection Standard (Recommended)
Classification of Chinese Standard G51
Classification of International Standard 87.040
Word Count Estimation 7,799
Date of Issue 2015-02-09
Date of Implementation 2015-09-01
Regulation (derived from) State-Quality-Inspection-Accreditation [2015] 59
Issuing agency(ies) General Administration of Customs
Summary This standard specifies the paints and coatings SCCPs (C10 ~ C13) by Gas Chromatography. This standard applies to paints and coatings SCCPs (C10 ~ C13) content determination.

SN/T 4118-2015: Determination of short-chain chlorinated paraffins in paints and coatings

---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 paints and coatings SCCP Content) People's Republic of China Entry-Exit Inspection and Quarantine Standards Determination of paints and coatings SCCPs Content Issued on. 2015-02-09 2015-09-01 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard was drafted. Shanxi People's Republic of China Exit Inspection and Quarantine. The main drafters of this standard. Xue Ping, Du Lijun, Yao Yating, Dijin Yi, Guo Xiaoxi, Zhao long, Zhang Xinxin, Wang Dongbin. Determination of paints and coatings SCCPs Content

1 Scope

This standard specifies the paints and coatings SCCPs (C10 ~ C13) by Gas Chromatography. This standard applies to paints and coatings SCCPs (C10 ~ C13) content determination.

2 Method summary

After the samples were extracted with hexane ultrasonic extraction, centrifugation extracts were sulfonated sulfate, centrifuged supernatant Florey silica solid phase extraction (SPE) Concentrated, constant volume, measured by gas chromatography, external standard.

3 Reagents and materials

Unless otherwise specified, all reagents were of analytical grade. 3.1 hexane. chromatographically pure. 3.2 ethyl acetate. chromatography. 3.3 of concentrated sulfuric acid (ρ = 1.98g/mL). 3.4 elution solvent. n-hexane ethyl acetate (10 1, VV). 3.5 Florisil SPE. 1g/3mL. 3.6 Nitrogen. purity ≥99.999%. 3.7 Short-chain chlorinated paraffins (C10 ~ C13) standard solution. 100μg/mL, the chlorine content of 55.5%. 3.8 Short-chain chlorinated paraffins (C10 ~ C13) standard solution. 100μg/mL, chlorine content of 51.5%. 3.9 Short-chain chlorinated paraffins (C10 ~ C13) standard solution. 100μg/mL, chlorine content of 63%. 3.10 SCCP standard solution. 10μg/mL, were taken SCCPs (C10 ~ C13) standard solution (3.7,3.8, 3.9) 1.0mL, diluted with n-hexane and dilute to 10mL.

4 instruments and equipment

4.1 Gas chromatograph. with electron capture detector (ECD) and autosampler. 4.2 centrifuge. speed can reach 4000r/min. 4.3 sonicator. 4.4 nitrogen blowing instrument. Than 4.5 colorimetric tube. 25mL. 4.6 Analysis of balance. a sense of the amount of 0.1mg. Step 5 Analysis 5.1 ultrasonic extraction Weigh the sample 0.5g, accurate to 0.0001g, into 25mL colorimetric tube (4.5) was added 10.0mL n-hexane (3.1), ultrasound

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