共找到 691 条与 醇、醚 相关的标准,共 47 页
Ethanol for industrial use — Methods of test — Part 5: Determination of aldehydes content — Visual colorimetric method
Ethanol for industrial use — Methods of test — Part 7: Determination of methanol content[methanol contents between 0.01 % and 0.20 %(V/V)] — Photometric method
Ethanol for industrial use — Methods of test — Part 9: Determination of esters content — Titrimetric method after saponification
Ethanol for industrial use — Methods of test — Part 2: Detection of alkalinity or determination of acidity to phenolphthalein
Glycerine for industrial use — Determination of glycerol content — Titrimetric method
Diacetone alcohol for industrial use-List of methods of test
Glycerols for industrial use — Methods of sampling
Polyglycols for industrial use — Determination of hydroxyl number — Phthalic anhydride esterification method
1.1 This test method covers the determination of total acidity as acetic acid in commonly available grades of monoethylene glycol, diethylene glycol, triethylene glycol and tetraethylene glycol using a non-aqueous potentiometric titration. This test method is useful for determining low levels of acidity, below 200 mg/kg. 1.2 The mono-, di-, triand tetraethylene glycols can be analyzed directly by this test method without any sample preparation. 1.3 Review the current appropriate Safety Data Sheets (SDS) for detailed information concerning toxicity, first aid procedures, and safety precautions. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific hazards statements are given in the section on Hazards, Section 9. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Standard Test Method for Acidity in Mono-, Di-, Tri- and Tetraethylene Glycol by
Standard Specification for Industrial Grade Ethylene Glycol
1.1 This specification covers industrial grade ethylene glycol. 1.2 Review the current Safety Data Sheets (SDS) for detailed information concerning toxicity, first aid procedures, handling and safety precautions. 1.3 The following applies to all specified limits in this standard; for purposes of determining conformance with this standard, an observed value or a calculated value shall be rounded off “to the nearest unit” in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E29. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Standard Specification for Industrial Grade Ethylene Glycol
1.1 This specification covers polyester grade ethylene glycol. 1.2 Review the current Safety Data Sheets (SDS) for detailed information concerning toxicity, first aid procedures, handling and safety precautions. 1.3 The following applies to all specified limits in this standard; for purposes of determining conformance with this standard, an observed value or a calculated value shall be rounded off “to the nearest unit” in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E29. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Standard Specification for Polyester Grade Ethylene Glycol
本文件规定了4,4'-二氨基二苯醚(以下简称“产品”)的要求、试验方法、检验规则和标志、包装、运输、贮存。
4,4'-Diaminodiphenyl ether
项 目 指 标 Ⅰ 型 Ⅱ 型 二丙二醇单甲醚,w/ % ≥ 99.0 95.0 水分,w/ % ≤ 0.10 0.10 色度 / Hazen单位(铂-钴色号) ≤ 10 15 酸度(以CH3COOH计),w/ % ≤ 0.01 0.02 密度(20 ℃)/(g/cm3) 0.950~0.960 0.940~0.970
Dipropylene glycol methyl ether for industrial use
本文件规定了工业尾气制生物乙醇的要求、试验方法、检验规则和标志、包装、运输和贮存及安全。 本文件适用于采用工业尾气为原料,经生物发酵、蒸馏、脱水后制得的生物乙醇。其他类型气体制生物乙醇也可参照此标准执行。 本文件规定的生物乙醇适用于以下主要用途:燃料乙醇、化工原料、有机溶剂等。
Industrial off-gas to bioethanol
本文件规定了4,4'-二氨基二苯醚的分型、要求、试验方法、检验规则及标志、包装、运输和贮存。 本文件适用于由4,4'-二硝基二苯醚加氢还原、经直接升华或升华后重结晶制备的4,4'-二氨基二苯醚。
4,4'-Diaminodiphenyl ether
1.1 This test method is applicable to the determination of ethoxyl or hydroxyethoxyl substitution in cellulose ether products by a Zeisel gas chromatographic technique. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 5 and 9.1.8.1. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Standard Test Method for Determination of Ethoxyl or Hydroxyethoxyl Substitution in Cellulose Ether Products by Gas Chromatography
1.1 This specification covers commercial products, engine coolant grade ethylene glycol and propylene glycol, including virgin glycols and those derived from the recycling of vehicle engine coolants and industrial source glycols. 1.2 Types EG-1 and PG-1 cover glycols with sufficiently low limits on components to allow a blended coolant to meet most OEM (Original Equipment Manufacturer) specifications. These types will probably be virgin materials, although redistillation could produce a sufficiently pure product. Types EG-2 and PG-2 cover glycol that will be suitable for many coolants. These types can be either redistilled or virgin. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Standard Specification for Engine Coolant Grade Glycol
本文件规定了丙烯酸二聚体及丙烯酸混合液(以下简称“混合液”)的技术要求、试验方法、检验规则、标志、标签、随行文件、包装、运输和贮存。 本文件适用于以丙烯为原料,通过两步氧化法制备丙烯酸过程中副产的丙烯酸二聚体及丙烯酸混合液。
Mixted solution of acrylic acid dimer and acrylic acid
Copyright ©2007-2022 ANTPEDIA, All Rights Reserved
京ICP备07018254号 京公网安备1101085018 电信与信息服务业务经营许可证:京ICP证110310号