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SN/T 3360-2012 English PDF

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SN/T 3360-2012: Determination of sodium dichromate in polymers. Ion chromatography method
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SN/T 3360-2012English209 Add to Cart 3 days [Need to translate] Determination of sodium dichromate in polymers. Ion chromatography method Valid SN/T 3360-2012

Standard similar to SN/T 3360-2012

SN/T 5268   

Basic data

Standard ID SN/T 3360-2012 (SN/T3360-2012)
Description (Translated English) Determination of sodium dichromate in polymers. Ion chromatography method
Sector / Industry Commodity Inspection Standard (Recommended)
Word Count Estimation 8,843
Quoted Standard GB/T 6682
Regulation (derived from) National Quality Inspection (2012) 777; industry standard filing Notice 2013 No. 4 (No. 160 overall)
Issuing agency(ies) General Administration of Customs
Summary This standard specifies the polymer sodium dichromate ion chromatographic method. This standard applies to the determination of hexavalent chromium in the polymer, sodium dichromate results count.

SN/T 3360-2012: Determination of sodium dichromate in polymers. Ion chromatography 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 sodium dichromate in polymers.Ion chromatography method People's Republic of China Entry-Exit Inspection and Quarantine Standards Determination of polymer sodium dichromate Ion Chromatography Issued on. 2012-12-12 2013-07-01 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 is drafted by. People's Republic of China, Shenzhen CIQ. Participated in the drafting of this standard. Shenzhen Inspection and Quarantine Science Research Institute. The main drafters of this standard. Yushu Yuan, Li Feng all, Li Bin, Liu Zhihong, Ren Cong, Song Bao Liang, Liu Dong, Wu Jingwu, Li Yong, Zouchun Hai. Determination of polymer sodium dichromate Ion Chromatography

1 Scope

This standard specifies the method of ion chromatography polymer sodium dichromate. This standard applies to the determination of hexavalent chromium in the polymer, sodium dichromate results count.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. Laboratory use specifications and test methods GB/T 6682 Analysis

3 Method summary

The use of alkaline leaching extract polymer hexavalent chromium, after leaching solution purification by reverse phase extraction column injection with a conductivity detector off Sub chromatograph testing, retention time qualitative, external standard. The test results in terms of the content of sodium dichromate.

4 Reagents and materials

The water used in line with GB/T 6682 provided a water. 4.1 Sodium hydroxide. pure class distinctions. 4.2 Potassium dichromate. reference material. 4.3 Quantitative filter paper. φ12.5cm, medium speed. 4.4 RP column or a similar inverted polymer material extraction column. 1.0mL. 4.5 of membrane filters. 0.45μm. 4.6 alkaline leach solution (0.5mol/L sodium hydroxide solution). Weigh 20.0g of sodium hydroxide (4.1), dissolved in water transferred to 1000mL Volumetric flask and dilute to the mark. 4.7 hexavalent chromium standard solution (100mg/L). Weigh accurately on potassium dichromate at 120 ℃ 2h after drying (4.2) 0.2828g, water 1000mL dissolved quantitatively transferred to a volumetric flask and dilute to volume, shake, or use of certified reference materials. 5. Apparatus 5.1 ion chromatograph (distribution conductivity detector). 5.2 Analysis of balance. a sense of the amount of 0.1mg. 5.3 oscillating water bath. Accuracy ± 2 ℃. 5.4 freeze grinding apparatus or the like.

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