一般有机化工原料标准-分析测试百科网

ASTM D5471-17 邻二甲苯980的标准规格

1.1 This specification covers a grade of o-xylene identified as ortho-Xylene 980. 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 and 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 O-Xylene 980

ICS: 71.080.15
CCS: G17
发布: 2017
实施

ASTM D2712-17 用气相色谱法测定次乙基中烃杂质的标准试验方法

5.1 High-purity propylene is required as a feedstock for various manufacturing processes, and the presence of trace amounts of certain hydrocarbon impurities may have adverse effects on yield or catalyst life. This method is suitable for use as a benchmark in setting commercial specifications, for use as an internal quality control tool, and for use in development or research work. 1.1 This test method is used for the determination of hydrocarbon impurities in Propylene (propene) material of 978201;% by mass or greater purity (concentrates). These impurities are determined in the concentration range of 0.35 mg/kg to 8575 mg/kg and includes the following components, methane, ethane, ethylene, propane, acetylene, isobutane, propadiene, normal butane, trans-2-butene, butene-1, isobutylene, cis-2-butene, isopentane, methylacetylene, normal pentane, and 1,3-butadiene. Note 1: Optionally, the analysis may include the determination of pentenes/hexanes and heavier components, see 6.3. 1.2 This method does not determine non-hydrocarbon impurities, and additional tests may be necessary to fully characterize the propylene sample. However, for the purposes of this test, the purity of propylene is determined as the difference between the total of the determined analytes and 1008201;% (by difference). 1.3 When this method is being used for the determination of trace level impurities in high-purity propylene, the use of this method for the analysis of propylene samples at lower purities is not recommended due to the potential for cross contamination between samples. 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 may involve hazardous materials, operations, and equipment. 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 Test Method for Determination of Hydrocarbon Impurities in High Purity Propylene by Gas Chromatography

ICS: 71.080.10
CCS: G17
发布: 2017
实施

ASTM D7796-17 用气相色谱法分析乙基叔丁醚(ETBE)的标准试验方法

5.1 The presence of impurities in ETBE product can have a deleterious effect upon the value of ETBE as a fuel additive. Oxygenate and olefin contents are of primary concern. This test method provides a knowledge of the composition of ETBE product. This is useful in the evaluation of process operations control, in the valuation of the product, and for regulatory purposes. 1.1 This test method covers the determination of the purity of ethyl tert-butyl ether (ETBE) by gas chromatography. It also provides a procedure to measure impurities in ETBE such as C4 to C12 olefins, methyl, isopropyl and tert-butyl alcohols, methyl sec-butyl and methyl tert-amyl ethers, acetone, and methyl ethyl ketone. 1.2 This test method is not applicable to the determination of ETBE in gasoline. 1.3 Water cannot be determined by this test method and shall be measured by a procedure such as Test Method D6304 and the result used to normalize the chromatographic values. 1.4 Most of the impurities in ETBE are resolved by the test method, however, some co-elution is encountered. 1.5 This test method is inappropriate for impurities that boil at temperatures higher than 1808201;°C or for impurities that cause poor or no response in a flame ionization detector, such as water. 1.6 The values stated in SI units of measurement are preferred and used throughout the standard. Alternate units, in common usage, are also provided to improve clarity and aid the user of this test method. 1.7 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. 1.8 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 Analysis of Ethyl tert-Butyl Ether (ETBE) by Gas Chromatography

ICS: 71.080.60 ; 75.160.20
CCS: G17
发布: 2017
实施

ASTM D6210-17 重型发动机的完全配制的乙二醇基发动机冷却剂的标准规格

1.1 This specification covers the requirements for fully-formulated glycol base coolants for cooling systems of heavy-duty engines. When concentrates are used at 40 to 608201;% glycol concentration by volume in water of suitable quality, (see Appendix X1), or when prediluted glycol base engine coolants (50 volume8201;% minimum) are used without further dilution, they will function effectively during both winter and summer to provide protection against corrosion, cavitation, freezing, and boiling. 1.2 This specification is intended to cover the requirements for engine coolants prepared from virgin or recycled ethylene or propylene glycol. Note 1: Committee D15 has not substantially studied the impact of using recycled glycols from sources such as: • glycol bottoms • polyester manufacturing waste • aircraft and runway deicers • medical waste to prepare engine coolants. However, several serious cases of very poor performance have been reported and substantiated in heavy duty fleets when recycled glycols from sources such as above have been used to prepare engine coolants. Efforts are underway to more clearly define the purity requirements for glycols used to prepare engine coolants meeting this specification, whether from recycled engine coolants or other sources. 1.3 The coolants governed by this specification are categorized as follows: Coolant Type Description

Standard Specification for Fully-Formulated Glycol Base Engine Coolant for Heavy-Duty Engines

ICS: 71.100.45
CCS: G17
发布: 2017
实施

ASTM D5211-17 对二甲苯原料用二甲苯的标准规格

1.1 This specification covers xylenes for p-xylene feedstock. These xylenes typically are extracted from reformate. 1.2 The following applies to all specified limits in this specification: for purposes of determining conformance with this specification, an observed value or 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. The values given in parentheses are for information only. 1.4 Consult current OSHA regulations, suppliers’ Safety Data Sheets (SDS), 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 Xylenes for p-Xylene Feedstock

ICS: 71.080.15
CCS: G17
发布: 2017
实施

ASTM D8130-17 采用感应耦合等离子体原子发射光谱法测定精对苯二甲酸(PTA)中金属含量的标准试验方法

4.1 The presence of metals in PTA used for the production of polyester is undesirable because they may speed up or slow down the reaction and be impurities in the final product. 4.2 Determination of the metals in PTA is often required. This test method is suitable for setting specifications and for use as an internal quality control where these products are produced or used. 4.3 This test method covers the determination of sodium, chromium, cobalt, aluminum, titanium, potassium, magnesium, manganese, iron, nickel, molybdenum and calcium. 1.1 This test method covers the determination of metal elements in purified terephthalic acid (PTA) by inductively coupled plasma atomic emission spectrometry (ICP-AES).This method is applicable to PTA samples containing sodium, chromium, cobalt, aluminum, titanium, potassium, magnesium, manganese, iron, nickel, molybdenum and calcium over 0.055 mg/kg, respectively. 1.2 In determining the conformance of the test results using this method to applicable specification, results shall be rounded off 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 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 Test Method for Determination of Metals in Purified Terephthalic Acid (PTA) by Inductively Coupled Plasma Atomic Emission Spectrometric Method

ICS: 71.080.40
CCS: G17
发布: 2017
实施

ASTM D3193-17 乙苯的标准规格

1.1 This specification covers ethylbenzene. 1.2 Consult current OSHA regulations, supplier’s Safety Data Sheet for all materials, and local regulations used in this specification. 1.3 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. 1.4 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 Specification for Ethylbenzene

ICS: 71.080.15
CCS: G17
发布: 2017
实施

ASTM D5606-17 甲苯二氰酸盐(TDI)原料用甲苯的标准规格

1.1 This specification covers toluene for toluene diisocyanate (TDI) feedstock. 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 Consult OSHA regulations and supplier’s Safety Data Sheets for all materials used in this specification. 1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only. 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 Toluene for Toluene Diisocyanate (TDI) Feedstock