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Standard Test Method for Analysis of High Purity Benzene for Cyclohexane Feedstock by Capillary Gas Chromatography
Automaticky přeložený název:
Standardní zkušební metoda pro analýzu s vysokou čistotou Benzen cyklohexanu vstupní suroviny pomocí kapilární plynové chromatografie
NORMA vydána dne 15.2.2014
Označení normy: ASTM D5713-14
Poznámka: NEPLATNÁ
Datum vydání normy: 15.2.2014
Kód zboží: NS-32257
Počet stran: 5
Přibližná hmotnost: 15 g (0.03 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Keywords:
benzene, cyclohexane feedstock, impurities, ICS Number Code 71.080.15 (Aromatic hydrocarbons)
Significance and Use | ||||||||||||||
5.1 This test method is useful for benzene purity on the basis of impurities normally present in benzene and may be used for final product inspections and process control. 5.2 This test method will detect the following impurities: toluene, methylcyclopentane, n-hexane, 2-methylhexane, cyclohexane, cyclopentane, 2-methylpentane, 2,3-dimethylpentane, 3-methylhexane, n-heptane, methylcyclohexane, ethylcyclopentane, 2,4-dimethylhexane, trimethylpentane, and others where specific impurity standards are available. Absolute purity cannot be accurately determined if unknown impurities are present. |
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1. Scope | ||||||||||||||
1.1 This test method covers the determination of specific impurities in, and the purity of benzene for cyclohexane feedstock by gas chromatography. 1.2 This test method has been found applicable to benzene in the range from 99 to 100 % purity and to impurities at concentrations of 2 to 10 000 mg/kg. 1.3 In determining the conformance of the test results using this method to applicable specifications, results shall be rounded off in accordance with the rounding-off method of Practice E29. 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 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.
Standard Practice for Packed Column Gas
Chromatography Standard Practice for Gas Chromatography
Terms and Relationships (Includes all amendments and changes
4/28/2021). Standard Practice for Using Significant
Digits in Test Data to Determine Conformance with
Specifications Standard Guide for Quality Control and
Quality Assurance Procedures for Aromatic Hydrocarbons and Related
Materials (Includes all amendments and changes 10/20/2020). Standard Practice for Sampling and
Handling Liquid Cyclic Products Standard Terminology of Aromatic
Hydrocarbons and Related Chemicals Standard Practice for Installing Fused
Silica Open Tubular Capillary Columns in Gas Chromatographs |
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