Potřebujeme váš souhlas k využití jednotlivých dat, aby se vám mimo jiné mohly ukazovat informace týkající se vašich zájmů. Souhlas udělíte kliknutím na tlačítko „OK“.
Standard Test Method for Analysis of Styrene by Capillary Gas Chromatography (Includes all amendments And changes 2/5/2021).
Přeložit název
NORMA vydána dne 1.6.2016
Označení normy: ASTM D5135-16e1
Poznámka: NEPLATNÁ
Datum vydání normy: 1.6.2016
Kód zboží: NS-668479
Počet stran: 5
Přibližná hmotnost: 15 g (0.03 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Keywords:
analysis by gas chromatography, impurities in styrene, purity of styrene, styrene, styrene monomer,, ICS Number Code 71.080.15 (Aromatic hydrocarbons)
Significance and Use | ||||||||||||||||
5.1 This test method is designed to obtain styrene purity on the basis of impurities normally present in styrene and may be used for final product inspections and process control. 5.2 This test method will detect the impurities shown in Table 1, non-aromatic hydrocarbons containing ten carbons or less, and others where specific impurity standards are available. Absolute purity cannot be determined if unknown impurities are present. |
||||||||||||||||
1. Scope | ||||||||||||||||
1.1 This test method covers the determination of the impurities typically found in styrene and uses those values to determine the purity of styrene by difference by gas chromatography. Typical impurities in commercial styrene are found in Table 1. 1.2 This test method is applicable to impurity concentrations in the range of 0.001 to 1.00 % and for styrene purities of 99 % or higher when using the internal standard procedure. 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 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 a specific hazard statement, see Section 9. |
||||||||||||||||
2. Referenced Documents | ||||||||||||||||
|
Poskytování aktuálních informací o legislativních předpisech vyhlášených ve Sbírce zákonů od roku 1945.
Aktualizace 2x v měsíci !
Chcete vědět více informací? Podívejte se na tuto stránku.
Poslední aktualizace: 26.04.2024 (Počet položek: 2 896 057)
© Copyright 2024 NORMSERVIS s.r.o.