71.080.50 酐 标准查询与下载
共找到 89 条与 酐 相关的标准，共 6 页
Phthalic anhydride for industrial use
- ICS
- 71.080.50
- CCS
- 发布
- 2008-12-19
- 实施
이 표준은 산업용 말레산 무수물(이하, 말레산 무수물이라 한다.)에 대하여 규정한다.
Maleic anhydride for industrial use
- ICS
- 71.080.50
- CCS
- G11
- 发布
- 2008-12-19
- 实施
- 2008-12-19
이 표준은 산업용 프탈산 무수물(이하, 프탈산 무수물이라 한다.)에 대하여 규정한다.
Phthalic anhydride for industrial use
- ICS
- 71.080.50
- CCS
- G11
- 发布
- 2008-12-19
- 实施
- 2008-12-19
本标准规定了1,8-茶二甲酸酐的技术要求、试验方法、检验规则、包装和质量证明书。 本标准适用于从高温煤焦油中分离出的工业苊,经氧化制得的1,8-荼二甲酸酐。
1,8-Naphthalic anhydride
- ICS
- 71.080.50
- CCS
- G18
- 发布
- 2007-01-25
- 实施
- 2007-07-01
本标准规定了1,8-萘二甲酸酐含量测定的试验原理、试验的采取和制备、试剂、仪器、试验步骤、实验结果计算和允许差。 本标准适用于从高温煤焦油中分离出的工业苊,经氧化所制得1,8-萘二甲酸酐含量的测定。
1,8-Naphthalic anhydride
- ICS
- 71.080.50
- CCS
- G18
- 发布
- 2007-01-25
- 实施
- 2007-07-01
本标准规定了1,8-荼二甲酸酐熔点测定的试验原理、试样的采取和制备、仪器与材料、试验步骤、试验结果、精密度。 本标准适用于从高温煤焦油中分离出的工业苊, 经氧化制得的1,8-萘二甲酸酐熔点的测定。
1,8-Naphthalic anhydride
- ICS
- 71.080.50
- CCS
- G18
- 发布
- 2007-01-25
- 实施
- 2007-07-01
The maleic acid content is usually an indication of exposure to moisture in air. Maleic anhydride reacts with moisture to form maleic acid.1.1 This test method covers the determination of free maleic acid in refined maleic anhydride by potentiometric titration.1.2 This test method is applicable for all concentrations of maleic acid; however, it is primarily used for concentrations below 0.5 %.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 E 29.1.4 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 hazard statements, see Section 7.
Standard Test Method for Maleic Acid in Maleic Anhydride by Potentiometric Titration
- ICS
- 71.080.50
- CCS
- G17
- 发布
- 2003
- 实施
1.1 This specification covers maleic anhydride.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 E 29.1.3 Consult current OSHA regulations and supplier''s Material Safety Data Sheets, and local regulations for all materials used in this specification.
Standard Specification for Maleic Anhydride
- ICS
- 71.080.50
- CCS
- G17
- 发布
- 1996
- 实施
本标准适用于有机中间物之工业用顺丁烯二轩。参考：顺丁烯二酐若与微量苛性物或其它碱类、碱性物质及有机碱一起加热，将产生危险性分解作用。故处理污染过顺丁烯二酐之仪器，装置须格外谨慎。
Maleic Anhydride for Industrial Use
- ICS
- 71.080.50
- CCS
- 发布
- 1995-08-31
- 实施
- 1995-08-31
The color of maleic anhydride and phthalic anhydride can be an indication of the purity of these materials. High colors normally indicate contamination.1.1 This test method covers the determination of the visual measurement of the color of maleic and phthalic anhydride melt before and after prolonged heating under specified conditions of time and temperature. Color values are expressed in terms of platinum-cobalt standards. This test method covers the range 0 to 100 color standard numbers.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 of "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 E 29.1.3 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 and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements see Section 7.
Standard Test Method for Color of Maleic Anhydride and Phthalic Anhydride in the Molten State and After Heating (Platinum-Cobalt Scale)
- ICS
- 71.080.50
- CCS
- G17
- 发布
- 1995
- 实施
Настоящий стандарт устанавливает метод определения золы в техническом малеиновом ангидриде
Maleic anhydride for industrial use. Methods of test. Part 5. Method of the determination of ash
- ICS
- 71.080.50
- CCS
- 发布
- 1993
- 实施
- 1995-01-01
Настоящий стандарт устанавливает метод определения цвета (в единицах Хазена) технического малеинового ангидрида в расплавленном состоян
Maleic anhydride for industrial use. Methods of test. Part 2. Measurement of colour of the molten material
- ICS
- 71.080.50
- CCS
- 发布
- 1993
- 实施
- 1995-01-01
