GB/T 25789-2023 English PDFUS$209.00 ยท In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 25789-2023: p-Phenylenediamine Status: Valid GB/T 25789: Historical versions
Basic dataStandard ID: GB/T 25789-2023 (GB/T25789-2023)Description (Translated English): p-Phenylenediamine Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: G56 Classification of International Standard: 71.100.01; 87.060.10 Word Count Estimation: 10,113 Date of Issue: 2023-12-28 Date of Implementation: 2024-07-01 Older Standard (superseded by this standard): GB/T 25789-2010 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 25789-2023: p-Phenylenediamine---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.ICS 71:100:01;87:060:10 CCSG56 National Standards of People's Republic of China Replace GB/T 25789-2010 p-phenylenediamine Published on 2023-12-28 2024-07-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration Committee ForewordThis document complies with the provisions of GB/T 1:1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents" Drafting: This document replaces GB/T 25789-2010 "P-phenylenediamine": Compared with GB/T 25789-2010, except for structural adjustments and editorial changes, In addition, the main technical changes are as follows: ---Changed the quality requirements for p-phenylenediamine (see Chapter 4, Chapter 3 of the:2010 edition); ---Changed the sampling volume (see Chapter 6, Chapter 4 of the:2010 edition); ---Changed the appearance assessment method (see 7:2, 5:2 of the:2010 version); ---Added capillary melting point instrument method (see 7:3:2); ---Changed the chromatographic operating conditions (see 7:4:4, 5:4:4 of the:2010 edition): Please note that some content in this document may be subject to patents: The publisher of this document assumes no responsibility for identifying patents: This document is proposed by China Petroleum and Chemical Industry Federation: This document is under the jurisdiction of the National Dyestuffs Standardization Technical Committee (SAC/TC134): This document was drafted by: Zhejiang Annoaromatic Chemicals Co:, Ltd:, Shenyang Shenyang Chemical Institute Testing Technology Co:, Ltd:, Shenyang Chemical Industry Research Institute Co:, Ltd:, Shenyang Chemical Testing Technology (Nantong) Co:, Ltd:, Xiamen Fengliyang Technology Co:, Ltd: The main drafters of this document: Gu Qilong, Hu Yanbing, Gong Han, Zhao Zhimin, Li Zhenyi, Tao Jianguo, Li Jingyi, and Hu Zhiwen: This document was first published in:2010 and this is the first revision: p-phenylenediamine Warning---Personnel using this document should have practical experience in regular laboratory work: This document does not address all possible security issues question: Users are responsible for taking appropriate safety and health measures and ensuring compliance with the conditions stipulated in relevant national regulations:1 ScopeThis document stipulates the quality requirements, safety information, sampling, test methods, inspection rules, signs, labels, packaging, and transportation of paraphenylenediamine: transport and storage: This document applies to the quality control of p-phenylenediamine products: Structural formula: Molecular formula:C6H8N2 Relative molecular mass: 108:14 (according to 2022 international relative atomic mass) CAS number:106-50-32 Normative reference documentsThe contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, the dated quotations For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document: GB 190 Dangerous goods packaging markings GB/T 191-2008 Packaging, storage and transportation pictorial markings GB/T 2384-2021 General method for determination of melting point range of dye intermediates GB/T 6678-2003 General principles for sampling of chemical products GB/T 8170-2008 Numerical rounding rules and representation and determination of limit values GB/T 9722-2006 General rules for gas chromatography with chemical reagents GB 12268-2012 List of dangerous goods GB 12463 General technical conditions for transport and packaging of dangerous goods GB 15258 Regulations on Preparing Chemical Safety Labels GB 15603 General rules for warehouse storage of hazardous chemicals GB/T 16483 Chemical Safety Data Sheet Contents and Project Sequence3 Terms and definitionsThere are no terms or definitions to be defined in this document: ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 25789-2023_English be delivered?Answer: Upon your order, we will start to translate GB/T 25789-2023_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 GB/T 25789-2023_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 25789-2023_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 GB/T 25789-2023?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 25789-2023 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. |