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ASTM D4735-96

Standard Test Method for Determination of Trace Thiophene in Refined Benzene by Gas Chromatography

Automaticky preložený názov:

Štandardná skúšobná metóda pre stanovenie stopových thiofenového rafinovanom Benzén plynovou chromatografiou

NORMA vydaná dňa 1.1.2000

Jazyk
Prevedenie	Online zabezpečené PDF - 66.30 € Tlačené - 66.30 €
Dostupnosť	SKLADOM
Cena	66.30 € bez DPH
66.30 €

Informácie o norme:

Označenie normy: ASTM D4735-96
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.1.2000
Kód tovaru: NS-28365
Počet strán: 4
Približná hmotnosť: 12 g (0.03 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM

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Anotácia textu normy ASTM D4735-96 :

Keywords:

benzene, flame photometric detector, gas chromatography, thiophene

Doplňujúce informácie

1. Scope

1.1 This test method covers the determination of thiophene in refined benzene in the range from 0.5 mg/kg to 5.0 mg/kg. The range of the test method may be extended by modifying the sample injection volume, calibration range, or sample dilution with thiophene-free solvent.

1.2 This test method has been found applicable to benzene characteristic of the type described in Specifications D2359 and D4734 and may be applicable to other types or grades of benzene only after the user has demonstrated that the procedure can completely resolve thiophene from the other organic contaminants contained in the sample.

1.3 The following applies to all specified limits in this test method: for purposes of determining conformance with this test method, 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 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.

2. Referenced Documents

E29-22	Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
D1193-24	Standard Specification for Reagent Water
E260-96(2026)	Standard Practice for Packed Column Gas Chromatography
E355-96(2021)e1	Standard Practice for Gas Chromatography Terms and Relationships (Includes all amendments and changes 4/28/2021).
D6809-24	Standard Guide for Quality Control and Quality Assurance Procedures for Aromatic Hydrocarbons and Related Materials
E691-23	Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
E840-95(2021)e1	Standard Practice for Using Flame Photometric Detectors in Gas Chromatography (Includes all amendments and changes 5/5/2021).
E1510-95(2021)	Standard Practice for Installing Fused Silica Open Tubular Capillary Columns in Gas Chromatographs
D2359-24	Standard Specification for Refined Benzene-535
D3437-15(2022)	Standard Practice for Sampling and Handling Liquid Cyclic Products
D4057-22	Standard Practice for Manual Sampling of Petroleum and Petroleum Products
D4177-22e1	Standard Practice for Automatic Sampling of Petroleum and Petroleum Products (Includes all amendments and changes 3/24/2023).
D4307-17(2021)	Standard Practice for Preparation of Liquid Blends for Use as Analytical Standards
D4734-24	Standard Specification for Refined Benzene-545
E177-26a	Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods (Includes all amendments and changes 5/14/2026).

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