SN/T 0548.1-2002 English PDFUS$519.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. SN/T 0548.1-2002: Determination of 1, 3-dichloro-2-propanol and 2, 3-dichloro-1-propanol in soy sauce for export Status: Obsolete SN/T 0548.1: Historical versions
Basic dataStandard ID: SN/T 0548.1-2002 (SN/T0548.1-2002)Description (Translated English): Determination of 1, 3-dichloro-2-propanol and 2, 3-dichloro-1-propanol in soy sauce for export Sector / Industry: Commodity Inspection Standard (Recommended) Classification of Chinese Standard: X66 Word Count Estimation: 13,186 Date of Issue: 2002-08-02 Date of Implementation: 2003-01-01 Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China Summary: This standard specifies the sauce of 1, 3 dichloro-2 propanol (abbreviated 1, 3 chloropropanol, 1, 3-DCP) and 2, 3-dichloro-1 propanol (abbreviated 2, 3 Chlorine propanol, 2, 3-DCP) sampling, sample preparation and gas chromatography method. This standard applies to exports of soy 1, 3 dichloro-2 propanol and 2, 3 dioxo-1 propanol test. SN/T 0548.1-2002: Determination of 1, 3-dichloro-2-propanol and 2, 3-dichloro-1-propanol in soy sauce 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. Determination of 1, 3-dichloro-2-propanol and 2, 3-dichloro-1-propanol in soy sauce for export People's Republic of China Entry-Exit Inspection and Quarantine Industry Standard . - Export soy sauce, bismuth dichlorohydrin And hydrazine, test method for chlorinated dichlorohydrin >┉┇│┃┉┄┃┄,┐━┄┇┄┐┐┅┇┄┅┃┄━┃ Hey, hey. ┐┐ release Implementation People's Republic The General Administration of Quality Supervision, Inspection and Quarantine issued ForewordThe measurement methods in this standard are based on relevant domestic and foreign literatures, and are developed after research, improvement and verification. Appendix A of this standard is an informative annex. This standard is proposed and managed by the National Certification and Accreditation Administration. This standard is drafted by. Guangdong Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China. The main drafters of this standard. Rong Hui, Wang Zhiyuan, Zhang Siqun, Liang Great. This standard is the first industry standard for entry-exit inspection and quarantine. stew. - Export soy sauce, bismuth-dichloro-hydrazine-propanol And hydrazine, hydrazine-dichloro-hydrazine-propanol test method range This standard specifies 1,3-dichloro-2-propanol (referred to as 1,3-chloropropanol, 1,3-DCP) and 2,3-dichloro-1-propanol (2,3 for short) in soy sauce. - Sampling, sample preparation and gas chromatography determination of chloropropanol, 2,3-DCP). This standard applies to the inspection of 1,3-dichloro-2-propanol and 2,3-dichloro-1-propanol in export soy sauce. 抽样 Sampling and sample preparation . Sampling principle Representative samples were taken at different locations according to the inspection lot. . Sampling method .. 6 pieces are taken out of 100 pieces, and more than 100 pieces are counted according to formula (1). 槡牕 = 爫 stew 2 (1) In the formula. 牕--the number of samples (take the integer, the fractional part is rounded up); 爫--The total number of batches. .. Bottled soy sauce is sampled from one bottle to two bottles per container. Each batch should be sampled at least six bottles (500mL per bottle, the same below), four of which are used. For inspection, leave a sample of two bottles. .. Each batch of bulk soy sauce is collected in a batch of not less than 3000mL (or 3kg), and is divided into three grinding bottles (microbial sampling containers and All utensils need to be sterilized). . Label The sample name, lot number, date of manufacture, production unit, sampler and date of sampling must be indicated on the sample immediately after sampling. . Method summary The 1,3-dichloro-2-propanol and 2,3-dichloro-1-propanol in the sample were purified by a diatomaceous earth column, and the analyte was eluted with n-hexane-diethyl ether. The eluate was measured by a gas chromatograph equipped with an electron capture detector and quantified by an external standard method. . Reagents and materials All reagents were of analytical grade unless otherwise specified, and the experimental water was distilled water. .. hexane. .. hexane-ether volume ratio. 9+1. .. Anhydrous sodium sulfate. 650 ° C burning for 4h, cooled and stored in a sealed container for use. .. Diatomaceous earth. burned at 600 ° C for 6 h, cooled and stored in a sealed container for use. .. 1,3-Dichloro-2-propanol and 2,3-dichloro-1-propanol standard. purity ≥99%. .. 1,3-dichloro-2-propanol and 2,3-dichloro-1-propanol standard solution. accurately weigh the appropriate amount of 1,3-dichloro-2-propanol and 2,3- Dichloro- The 1-propanol standard was dissolved in a small amount of n-hexane, and a standard stock solution of 1000 μg of stewed mL was prepared in n-hexane. As needed Dilute to a standard working solution of the appropriate concentration with n-hexane. stew. - ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of SN/T 0548.1-2002_English be delivered?Answer: Upon your order, we will start to translate SN/T 0548.1-2002_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 0548.1-2002_English with my colleagues?Answer: Yes. The purchased PDF of SN/T 0548.1-2002_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version SN/T 0548.1-2002?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version SN/T 0548.1-2002 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |
