71.080.01 有机化学综合 标准查询与下载

ASTM E1064-16 采用库仑卡尔费瑟滴定法测定有机液体中水份的标准试验方法

4.1 The coulometric technique is especially suited for determining low concentrations of water in organic liquids that would yield small titers by the Karl Fischer volumetric procedure. The precision and accuracy of the coulometric technique decreases for concentrations of water much greater than 2.08201;% because of the difficulty in measuring the small size of sample required. The test method assumes 1008201;% efficiency of coulombs in iodine production. Provision is made for verifying this efficiency. (See Table 1 and Note 5.) 1.1 This test method covers the determination of water from 0 to 2.08201;% mass in most liquid organic chemicals, with Karl Fischer reagent, using an automated coulometric titration procedure. Use of this test method is not applicable for liquefied gas products such as Liquid Petroleum Gas (LPG), Butane, Propane, Liquid Natural Gas (LNG), etc. 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 Review the current Safety Data Sheets (SDS) for detailed information concerning toxicity, first-aid procedures, handling, and safety precautions. 1.4 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 8.

Standard Test Method for Water in Organic Liquids by Coulometric Karl Fischer Titration

ASTM D7423-16e1 采用气相色谱法和火焰离子化检测法测定C2, C3, C4和C5烃矩阵中的含氧化合物的标准试验方法

5.1 The determination of oxygenates is important in the manufacture of ethene, propene, 1-3 butadiene, C4 hydrocarbons, and C5 hydrocarbons. Alcohols, ethers, aldehydes, and ketones are trace impurities in these hydrocarbons. Oxygenates decrease catalyst activity in downstream polymerization processes. 1.1 This test method covers the gas chromatographic procedure for the quantitative determination of organic oxygenates in C2, C3, C4, and C5 matrices by multidimensional gas chromatography and flame ionization detection. This test method is applicable when the hydrocarbon matrices have a final boiling point not greater than 2008201;°C. Oxygenate compounds include, but are not limited to, those listed in Table 1. The linear working range for oxygenates is 0.508201;mg/kg to 1008201;mg/kg. 1.2 This test method is intended to determine the mass concentration of each oxygenate in the hydrocarbon matrix. Oxygenate compound identification is determined by reference standards and column elution retention order. 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Determination of Oxygenates in C2, C3, C4, and C5 Hydrocarbon Matrices by Gas Chromatography and Flame Ionization Detection

YB/T 5071-2015 β-甲基吡啶馏分

本标准规定了β-甲基吡啶馏分的技术要求、试验方法、检验规则、标志、包装、运输、贮存、质量证明书和安全注意事项。 本标准适用于从炼焦生产中回收的粗轻吡啶，经分馏制得的β-甲基吡啶馏分。

β-methyl pyridine fraction

GOST R 56345-2015 有机化工产品. 采用热敏电阻测定固化点

Organic chemical products. Determination of solidification point by thermistor

GOST R 56340-2015 有机液体. 用库仑卡尔费瑟滴定法对水含量的测定

Organic liquids. Determination of water by coulometric Karl Fischer titration

GOST R 56341-2015 芳烃及其相关化学物质. 采用紫外线荧光法对总硫量的测定

Aromatic hydrocarbons and related chemicals. Determination of total sulfur by method of ultraviolet fluorescence

GOST R 56343-2015 单环芳烃. 采用外部校准的气相色谱试验方法对微量杂质的测定

Monocyclic aromatic hydrocarbons. Determination of trace Impurities by gas chromatography test method using the external calibration

GOST R 56344-2015 丁二烯. 采用气相色谱法对烃类杂质纯度和含量的测定

Butadiene. Determination of purity and content of hydrocarbon impurities by gas chromatography method

GOST R 56346-2015 芳烃. 采用电位滴定法对溴指数的测定

Aromatic hydrocarbons. Determination of bromine index by electrometric titration

GOST R 56347-2015 芳烃及其混合物. 采用库仑卡尔费瑟滴定法对痕量的测定

Aromatic hydrocarbons and their mixtures. Determination of trace quantities of water by coulometric Karl Fischer titration

GOST R 56348-2015 精制苯. 采用气相色谱试验方法测定微量噻吩

Refined benzene. Determination of trace thiophene by gas chromatography test method

ASTM E659-15 化学品自燃温度的标准试验方法

5.1 Autoignition, by its very nature, is dependent on the chemical and physical properties of the material and the method and apparatus employed for its determination. The autoignition temperature by a given method does not necessarily represent the minimum temperature at which a given material will self-ignite in air. The volume of the vessel used is particularly important since lower autoignition temperatures will be achieved in larger vessels. (See Appendix X2.) Vessel material can also be an important factor. 5.2 The temperatures determined by this test method are those at which air oxidation leads to ignition. These temperatures can be expected to vary with the test pressure and oxygen concentration. 5.3 This test method is not designed for evaluating materials which are capable of exothermic decomposition. For such materials, ignition is dependent upon the thermal and kinetic properties of the decomposition, the mass of the sample, and the heat transfer characteristics of the system. 5.4 This test method can be employed for solid chemicals which melt and vaporize or which readily sublime at the test temperature. No condensed phase, liquid or solid, should be present when ignition occurs. 5.5 This test method is not designed to measure the autoignition temperature of materials which are solids or liquids at the test temperature (for example, wood, paper, cotton, plastics, and high-boiling point chemicals). Such materials will thermally degrade in the flask and the accumulated degradation products may ignite. 5.6 This test method can be used, with appropriate modifications, for chemicals that are gaseous at atmospheric temperature and pressure. 5.7 This test method was developed primarily for liquid chemicals but has been employed to test readily vaporized solids. Responsibility for extension of this test method to solids of unknown thermal stability, boiling point, or degradation characteristics rests with the operator. 1.1 This test method covers the determination of hot- and cool-flame autoignition temperatures of a liquid chemical in air at atmospheric pressure in a uniformly heated vessel. Note 1: Within certain limitations, this test method can also be used to determine the autoignition temperature of solid chemicals which readily melt and vaporize at temperatures below the test temperature and for chemicals that are gaseous at atmospheric pressure and temperature. Note 2: After a round robin study, Test Method D2155 was discontinued, and replaced by Test Method E659 in 1978. See also Appendix X2. 1.2 This standard should be used to measure and describe the properties of materi......

Standard Test Method for Autoignition Temperature of Chemicals

YB/T 5072-2014 粗轻吡啶中吡啶及其同系物含量的测定方法

本标准规定了粗轻吡啶中吡啶及其同系物含量的测定方法的原理、试剂、仪器、试样的采取和制备、试验步骤、结果计算和允许差。本标准适用于从炼焦生产中回收的粗轻吡啶中的吡啶及其同系物含量的测定。

Determination of pyridine and homologues contents of curde light pyridine

DB13/T 2172-2015 农业用聚天冬氨酸（盐）

Agricultural polyaspartic acid (salt)

KS M 1960-2013 工业用乙烯 烃类杂质的测定 气相色谱法

Ethylene for industrial use－Determination of hydrocarbon impurities－Gas chromatographic method

ANSI/ASTM D4308:2013 精密计测定液态烃导电率的试验方法

Test Method for Electrical Conductivity of Liquid Hydrocarbons by Precision Meter

ASTM D6159-97(2012) 气相色谱法测定乙烯中烃类杂质的标准试验方法

Standard Test Method for Determination of Hydrocarbon Impurities in Ethylene by Gas Chromatography

ASTM D5386-10 使用三色激励测色法测定液体颜色的标准试验方法

The major objective of the visual platinum-cobalt (Pt-Co) method of color measurement, as defined in Test Method D1209, is to rate specific materials for yellowness. This yellowness is frequently the result of the undesirable tendency of liquid hydrocarbons to absorb blue light due to contamination in processing, storage or shipping. Clear liquids can be rated for light absorbing yellowish or brownish contaminants, using scales that simulate the long-established visual-comparison method just cited. Where needed, dimensions of color can be reported to identify any pinkness or greenness (one dimension), or grayness.1.1 This test method covers an instrumental method for the CIE (Commission International de l'Eclairage) tristimulus measurement of the color of near-clear liquid samples. The measurement is converted to color ratings in the platinum-cobalt system. 1.2 This test method has been found applicable to the color measurement of clear, liquid samples, free of haze, with nominal platinum cobalt color values in the 0 to 100 range. It is applicable to nonfluorescent liquids with light absorption characteristics similar to those of the platinum cobalt color standard solutions. Test Methods D1686, D2108, and deal with the visual and instrumental measurement of near-clear liquids. 1.3 In determining the conformance of the test results using this method to applicable specifications, results shall be rounded in accordance with the rounding off methods 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 and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 8.

Standard Test Method for Color of Liquids Using Tristimulus Colorimetry

ASTM D4308-10 精密计测定液态烃导电率的标准试验方法

The generation and dissipation of electrostatic charge in fuel due to handling depend largely on the ionic species present which may be characterized by the rest or equilibrium electrical conductivity. The time for static charge to dissipate is inversely related to conductivity. This test method can supplement Test Method D2624 which is limited to fuels containing static dissipator additive. Note 18212;For low-conductivity fluids below 1 pS/m in conductivity, an ac measurement technique is preferable to a dc test method for sensing the electrical conductivity of bulk fluid. This dc test method can be used at conductivities from 0.1 to 1 pS/m if precautions are observed in cell cleaning and sample handling. A waiting period of 15 min is required after filling the cell before measuring dc conductivities below 1 pS/m. A single-laboratory program was conducted comparing this test method with ac Test Methods D150. 1.1 This test method covers and applies to the determination of the “rest” electrical conductivity of aviation fuels and other similar low-conductivity hydrocarbon liquids in the range from 0.1 to 2000 pS/m (see 3.2). This test method can be used in the laboratory or in the field. 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 WARNINGMercury has been designated by many regulatory agencies as a hazardous material that can cause central nervous system, kidney and liver damage. Mercury, or its vapor, may be hazardous to health and corrosive to materials. Caution should be taken when handling mercury and mercury containing products. See the applicable product Material Safety Data Sheet (MSDS) for details and EPA’s websitehttp://www.epa.gov/mercury/faq.htmfor additional information. Users should be aware that selling mercury and/or mercury containing products into your state or country may be prohibited by law. 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 and health practices and determine the applicability of regulatory limitations prior to use. For specific warning statements, see 7.1.1, 7.2, 8.3, and Annex A1.

Standard Test Method for Electrical Conductivity of Liquid Hydrocarbons by Precision Meter

YB/T 4021-2007 萘中全硫含量的测定方法还原滴定法

本标准规定了镍还原一容量滴定法测定荼中全硫含量的试验原理、试剂、仪器、试验步骤、结果计算与精密度。 本标准适用于测定精萘,工业萘和压榨萘中的全硫含量。 本方法直接适用于全硫含量为30~10000mg/kg的试样。全硫含量更高时可用稀释办法测定。

Determination of total sulphur in naphthalene.reduction titration