共找到 1040 条与 基本有机化工原料 相关的标准,共 70 页
本标准规定了无水乙醇的等级划分、技术要求、试验方法、检验规则及标志、包装、贮存和运输。 本标准适用于以生物发酵法和化工合成法生产的、乙醇的质量分数达到99.0%以上的无水乙醇。 本标准规定的无水乙醇适用于以下主要用途: a)有机溶剂,应用于医药、涂料、卫生用品、化妆品、油脂等各领域; b)化工原料,应用于化工行业; c)燃料乙醇,应用于能源行业; d)以谷物、薯类、糖蜜或其他可食用农作物为主要原料经发酵制得的无水乙醇,符合有关国家标 准,可应用于食品行业。 分子式:C2H5OH 相对分子质量:46.07(按2011年国际相对原子质量)
Ethanol absolute
Methanol to mixed aromatics and coal-based hydrogenated oil (2017)
1.1 This specification covers high purity p-Xylene. 1.2 The following applies to all specified limits in this specification: for purposes of determining conformance with this specification, 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. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 Consult current OSHA regulations, supplier’s Safety Data Sheets, and local regulations for all materials used in this specification. 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 High Purity
1.1 This specification covers benzene for cyclohexane feedstock. 1.2 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. 1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.4 Consult current OSHA regulations supplier’s Safety Data Sheets for all materials used in this specification. 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 Benzene for Cyclohexane Feedstock
Refrigerated non-petroleum based liquefied gaseous fuels. Dimethylether (DME). Method of manual sampling onshore terminals
Hydrofluorocarbon (HFC) refrigerant blends
本标准规定了气相色谱法测定甲基萘和萘含量。 本标准适用于煤焦油经分馏所得的工业甲基萘中甲基萘和萘含量的测定。
Technical methylnaphalene.The determination of methylnaphthalene content and naphthalene content.The gas chromatography
Spirits. Gas-chromatographic method for determination of volume fraction of methanol
Technical 2-ethylhexanol. Specifications
methanol gasoline denatured alcohol for vehicles
Road vehicles — Non-petroleum base brake fluid
本标准规定了用分光光度法测定碳四烯烃中微量羰基化合物的含量。 本标准适用于1-丁烯和1,3-丁二烯中微量羰基化合物含量的测定,最小检测浓度为0.5 mg/kg(以丁酮计)。本标准不适用于异丁烯的测定。
C4 Olefins.Determination of trace carbonyls.Spectrophotometric method
本标准规定了用气相色谱法测定工业用裂解碳四的烃类组成。 本标准适用于工业用裂解碳四馏分中浓度不低于0.01%(质量分数)的烃类组成测定。本标准还适用于其它来源碳四烃类的定量分析。
Cracking C4 fraction for industrial use.Determination of hydrocarbon composition.Gas chromatographic method
This European Standard is applicable to synthetic ethanol used for treatment of water intended for human consumption. It describes the characteristics of synthetic ethanol and specifies the requirements and the corresponding test methods for synthetic ethanol. It gives information on its use in water treatment. NOTE This European Standard does not apply to anhydrous ethanol which is not used for drinking water treatment.
Chemicals used for treatment of water intended for human consumption - Ethanol
This European Standard is applicable to acetic acid used for treatment of water intended for human consumption. It describes the characteristics of acetic acid and specifies the requirements and the corresponding test methods for acetic acid. It gives information on its use in water treatment.*
Chemicals used for treatment of water intended for human consumption - Acetic Acid
Ethylene and propylene. Chromatographic methods of analysis
Ethylene and propylene. Methods of sampling
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