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Doplňující informace

ASTM D7185-19

Standard Specification for Low Toluene Low Dioxane (LTLD) Benzene

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NORMA vydána dne 1.11.2019

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Informace o normě:

Označení normy: ASTM D7185-19
Datum vydání normy: 1.11.2019
Kód zboží: NS-975412
Počet stran: 2
Přibližná hmotnost: 6 g (0.01 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM

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Anotace textu normy ASTM D7185-19 :

This specification covers the requirements for a grade of benzene known as low toluene low dioxane (LTLD) benzene. Sampled materials shall meet specified values of the following physical and chemical properties: purity; toluene content; sulfur content; thiophene content; nonaromatic hydrocarbons content; nitrogen content; acid wash color; color in Pt-Co scale; 1,4 dioxane content; anhydrous basis solidification point; water content; and total chlorides.

Keywords:
benzene, dioxane, LTLD, toluene,, ICS Number Code 75.160.20 (Liquid fuels)

Doplňující informace

1. Scope

1.1 This specification covers a grade of benzene known as Low Toluene Low Dioxane (LTLD) Benzene.

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, 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.

2. Referenced Documents

D7375-08	Standard Test Method for Trace Quantities of Water in Aromatic Hydrocarbons and Their Mixtures by Coulometric Karl Fischer Titration (Withdrawn 2017)
D848-23	Standard Test Method for Acid Wash Color of Industrial Aromatic Hydrocarbons
D1685-05	Standard Test Method for Traces of Thiophene in Benzene by Spectrophotometry (Withdrawn 2009)
D852-20	Standard Test Method for Solidification Point of Benzene
D7183-23	Standard Test Method for Determination of Total Sulfur in Aromatic Hydrocarbons and Related Chemicals by Ultraviolet Fluorescence
D7359-23	Standard Test Method for Total Fluorine, Chlorine and Sulfur in Aromatic Hydrocarbons and Their Mixtures by Oxidative Pyrohydrolytic Combustion followed by Ion Chromatography Detection (Combustion Ion Chromatography-CIC)
D7184-20	Standard Test Method for Ultra Low Nitrogen in Aromatic Hydrocarbons by Oxidative Combustion and Reduced Pressure Chemiluminescence Detection
D7360-16	Standard Test Method for Analysis of Benzene by Gas Chromatography with External Calibration (Withdrawn 2023)
D7457-12	Standard Test Method for Determining Chloride in Aromatic Hydrocarbons and Related Chemicals by Microcoulometry (Withdrawn 2019)
D7504-23	Standard Test Method for Trace Impurities in Monocyclic Aromatic Hydrocarbons by Gas Chromatography and Effective Carbon Number
D7536-20	Standard Test Method for Chlorine in Aromatics by Monochromatic Wavelength Dispersive X-ray Fluorescence Spectrometry
D8005-23	Standard Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)
E29-22	Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E1064-24	Standard Test Method for Water in Organic Liquids by Coulometric Karl Fischer Titration
D7011-15(2019)	Standard Test Method for Determination of Trace Thiophene in Refined Benzene by Gas Chromatography and Sulfur Selective Detection
D3437-15(2022)	Standard Practice for Sampling and Handling Liquid Cyclic Products
D4492-10	Standard Test Method for Analysis of Benzene by Gas Chromatography (Withdrawn 2018)
D4735-19	Standard Test Method for Determination of Trace Thiophene in Refined Benzene by Gas Chromatography
D5194-24	Standard Test Method for Trace Chloride in Liquid Aromatic Hydrocarbons
D5386-16	Standard Test Method for Color of Liquids Using Tristimulus Colorimetry
D5808-23	Standard Test Method for Determining Chloride in Aromatic Hydrocarbons and Related Chemicals by Microcoulometry
D6304-20	Standard Test Method for Determination of Water in Petroleum Products, Lubricating Oils, and Additives by Coulometric Karl Fischer Titration
D6875-23	Standard Test Method for Solidification Point of Industrial Organic Chemicals by Thermistor

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