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Standard Test Method for Analysis of Cyclohexane by Gas Chromatography (Effective Carbon Number)
Automaticky preložený názov:
Štandardná skúšobná metóda pre analýzu cyklohexánu plynovou chromatografiou (efektívna Carbon Number)
NORMA vydaná dňa 1.6.2013
Označenie normy: ASTM D7871-13
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.6.2013
Kód tovaru: NS-39212
Počet strán: 6
Približná hmotnosť: 18 g (0.04 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
analysis by gas chromatography, benzene, cyclohexane, ICS Number Code 71.080.10 (Aliphatic hydrocarbons)
Significance and Use | ||||||||||||||||
5.1 This test method is suitable for setting specifications on the materials referenced in Table 1 and for use as an internal quality control tool where cyclohexane is produced or is used in a manufacturing process. It may also be used in development or research work involving cyclohexane. 5.2 This test method is useful in determining the purity of cyclohexane with normal impurities present. If extremely high boiling or unusual impurities are present in the cyclohexane, this test method would not necessarily detect them and the purity calculation would be erroneous. |
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1. Scope | ||||||||||||||||
1.1 This test method covers the determination of the purity of cyclohexane by gas chromatography. 1.2 This test method has been found applicable to the measurement of impurities such as those found in 1.3 The limit of detection is 1 mg/kg. 1.4 In determining the conformance of the test results using this test method to applicable specifications, results shall be rounded off in accordance with the rounding-off method of Practice E29. 1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.6 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 Sampling and
Handling Liquid Cyclic Products Standard Practice for Installing Fused
Silica Open Tubular Capillary Columns in Gas Chromatographs 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 OSHA Regualtions, 29 CFR paragraphs 1910.1000 and 1910.1200 Standard Practice for Conducting an
Interlaboratory Study to Determine the Precision of a Test
Method Standard Terminology of Aromatic
Hydrocarbons and Related Chemicals Standard Guide for Quality Control and
Quality Assurance Procedures for Aromatic Hydrocarbons and Related
Materials (Includes all amendments and changes 10/20/2020). |
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