SN/T 3874-2014 English PDFUS$319.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. SN/T 3874-2014: Determination of total arsenic in medicinal herbs for export Status: Valid
Basic dataStandard ID: SN/T 3874-2014 (SN/T3874-2014)Description (Translated English): Determination of total arsenic in medicinal herbs for export Sector / Industry: Commodity Inspection Standard (Recommended) Classification of Chinese Standard: B38 Classification of International Standard: 65.020.20 Word Count Estimation: 12,172 Quoted Standard: GB/T 6682 Regulation (derived from): AQSIQ notification issued in 2014 on the first batch of 230 industry-standard entry-exit inspection and quarantine Issuing agency(ies): General Administration of Customs Summary: This standard specifies the method for determination of medicinal plants hydride generation atomic fluorescence spectrometry of total arsenic and inductively coupled plasma mass spectrometry. This standard is applicable to the determination safflower, Chu SN/T 3874-2014: Determination of total arsenic in medicinal herbs for export---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.(Export of medicinal plants of total arsenic - Determination) People's Republic of China Entry-Exit Inspection and Quarantine Standards Determination of export of medicinal plants of total arsenic Issued on. 2014-01-13 2014-08-01 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released ForewordThis standard was drafted in accordance with GB/T 1.1-2009 given rules. Please note that some of the content of this document may involve patents. Distribution of this document Institutions do not assume the responsibility to identify these patents. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard was drafted. People's Republic of China Beijing Entry-Exit Inspection and Quarantine Bureau. The main drafters of this standard. peak, Wang Jinhua, Liu Ji Yan, Hong-Ju, Kongwei Heng, Zhu Pingli. Determination of export of medicinal plants of total arsenic1 ScopeThis standard specifies the method for determination of medicinal plants hydride generation atomic fluorescence spectrometry of total arsenic and inductively coupled plasma mass spectrometry. This standard applies to safflower, measured Angelica sinensis, ginseng, forsythia, senna and other medicinal plants or medicinal plants like total arsenic, Lower limit of detection was 0.010mg/kg.2 Normative referencesThe 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 The first method hydride generation atomic fluorescence spectrometry3 Method summaryThe samples were acid digestion, the sample solution is introduced into hydride atomic fluorescence spectrometer, compared with standard series quantitation.4 Reagents and materialsUnless otherwise stated, all reagents superior grade pure water in line with GB/T 6682 provided a water. 4.1 sulfuric acid. 4.2 nitrate. 4.3 hydrochloric acid. 4.4 perchloric acid. 4.5 sodium hydroxide. 4.6 magnesium nitrate. 4.7 magnesium chloride. Thiourea 4.8. 4.9 potassium borohydride. 4.10 thiourea solution (50g/L). Weigh 50.0g of thiourea (4.8), was dissolved in 1000mL of water, and mix. 4.11 hydrochloric acid solution (11). Measure 50mL of hydrochloric acid (4.3), and slowly poured into 50mL water, and cooled after mixing carefully. 4.12 sulfuric acid solution (19). the amount of 10mL sulfuric acid (4.1), and slowly poured into 90mL of water, mix carefully after cooling. 4.13 sodium hydroxide solution (100g/L). Weigh 100.0g sodium hydroxide (4.5), was dissolved in 1000mL of water, and mix. 4.14 magnesium nitrate solution (150g/L). Weigh 150.0g magnesium nitrate (4.6), was dissolved in 1000mL of water, and mix. 4.15 standard stock solution. arsenic, 1000mg/L (GB W08611), China Institute of Metrology; or accurately weighed dried at 100 ℃ 2h or more of arsenic trioxide (As2O3) 1.3200g, plus 100g/L sodium hydroxide solution (4.13) 10mL dissolved, add water into 1000mL volumetric flask, add (19) of sulfuric acid (4.12) 25mL, washed with water to volume, mix, and this solution is equivalent to 1mg per milliliter of arsenic. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of SN/T 3874-2014_English be delivered?Answer: Upon your order, we will start to translate SN/T 3874-2014_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of SN/T 3874-2014_English with my colleagues?Answer: Yes. 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