Standards

SH/T 1495-2022 Tert-Butyl alcohol for industrial use

Publish Date: 2022-09-30

SH/T 1056-2022 Diethylene glycol for industrial use

Publish Date: 2022-09-30

SH/T 1054-2022 The determination of purity and impurities of diethylene glycol for industrial use by gas chromatography

Publish Date: 2022-09-30

SH/T 1835-2022 Determination of metal content in low-carbon α-olefins using inductively coupled plasma emission spectrometry

Publish Date: 2022-09-30

SH/T 1834-2022 SH/T 1834-2022 Industrial use of methylethyl ether

Publish Date: 2022-09-30

SH/T 1833-2022 The measurement of color difference for synthetic rubber: Colorimeter method

Publish Date: 2022-09-30

SH/T 1492-2020 Industrial 1-Butene Purity and Hydrocarbon Impurity Determination by Gas Chromatography

This standard is applicable to the determination of industrial 1-butene samples with a purity of not less than 99.00% (by mass fraction) and a content of hydrocarbon impurities such as propane, propylene, isobutane, n-butane, acetylene, cis-2-butene, isobutene, and trans-2-butene not less than 0.001% (by mass fraction). The content of propylene oxide, propargyne, and 1,3-butadiene should not exceed 2 mL/m3 and 10 mL/m3, respectively, or 0.001% (by mass fraction). Since this standard cannot determine all possible impurities such as oxygen-containing compounds, isobutene dimers, and water, it is necessary to apply other test methods to comprehensively characterize 1-butene samples.

Publish Date: 2020-12-19

SH/T 1483-2020 Determination of trace oxidized compounds in industrial carbon-four olefins by gas chromatography: SH/T 1483-2020

This standard is applicable to the determination of trace amounts of dimethyl ether, methyl tert-butyl ether, methanol, and tert-butanol and other oxygen-containing compounds in industrial C4 hydrocarbons, with a minimum detection concentration of 0.0001% (by mass).

Publish Date: 2020-12-19

SH/T 1482-2020 Industrial Isobutylene Purity and Hydrocarbon Impurity Determination by Gas Chromatography

This standard is applicable to the determination of industrial isobutylene with a purity greater than 98.00% (by mass fraction) and a content of hydrocarbon impurities such as propane, propylene, isobutane, n-butane, cis-2-butene, 1-butene, trans-2-butene, propargyne, 1,3-butadiene, n-pentane, and isopentane not less than 0.0010% (by mass fraction). Since this standard cannot determine all possible impurities such as oxide compounds, isobutylene dimers, and water, it is necessary to apply other test methods to comprehensively characterize isobutylene samples.

Publish Date: 2020-12-19

SH/T 1142-2020 Industrial pyrolysis C4 liquid sampling method

This standard applies to the sampling of cracked C4 and other liquid C4 hydrocarbons used in industry. This standard includes recommendations for the location of sampling points in pipelines or storage tanks. Users are responsible for ensuring that the location of the sampling points enables the collection of representative samples.

Publish Date: 2020-12-19

SH/T 1832-2020 Determination of Microstructure of Isoprene Rubber by Nuclear Magnetic Resonance Hydrogen Spectrum Method

This standard is applicable to the determination of the content of cis-1,4 structure, trans-1,4 structure, and 3,4 structure in isoprene rubber (IR).

Publish Date: 2020-12-19

SH/T 1831-2020 Determination of Free Acrylonitrile Content in Acrylonitrile-Butadiene Rubber by Headspace Gas Chromatography

This standard applies to acrylonitrile-butadiene rubber, with a minimum detection limit for free acrylonitrile content of 1.8mg/kg.

Publish Date: 2020-12-19