Cookies
Potrebujeme váš súhlas na využitie jednotlivých dát, aby sa vám okrem iného mohli ukazovať informácie týkajúce sa vašich záujmov. Súhlas udelíte kliknutím na tlačidlo „OK“.
ASTM D5508-94a
Standard Test Method for Determination of Residual Acrylonitrile Monomer in Styrene-Acrylonitrile Copolymer Resins and Nitrile-Butadiene Rubber by Headspace-Capillary Gas Chromatography (HS-CGC) (Includes all amendments And changes 8/16/2017).
Automaticky preložený názov:
Štandardná testovacia metóda pre stanovenie zvyškového monoméru v akrylonitrilu styrén - akrylonitrilový kopolymér živice a Nitrilový - butadiénového kaučuku podľa Headspace - kapilárnej plynovej chromatografie ( HS - CGC )
NORMA vydaná dňa 1.1.2001
Informácie o norme:
Označenie normy: ASTM D5508-94a
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.1.2001
Kód tovaru: NS-31497
Počet strán: 5
Približná hmotnosť: 15 g (0.03 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Anotácia textu normy ASTM D5508-94a :
Keywords:
headspace gas chromatography, nitrile rubber, residual acrylonitrile, styrene-acrylonitrile copolymers
Doplňujúce informácie
| Significance and Use | ||
|
A measurement of the residual acrylonitrile in nitrile rubbers (NBR), styrene-acrylonitrile copolymers or ABS terpolymers will determine the polymer’suitability for various applications. Under optimum conditions, the minimum level of detection of RAN in NBR, SAN, or ABS terpolymers is approximately 50 ppb. |
||
| 1. Scope | ||
|
1.1 This test method covers the determination of the residual acrylonitrile (RAN) content in nitrile-butadiene rubbers (NBR), styrene-acrylonitrile (SAN) copolymers, and rubber-modified acrylonitrile-butadiene-styrene (ABS) resins. 1.2 Any components that can generate acrylonitrile in the headspace procedure will constitute an interference. The presence of 3-hydroxypropionitrile in latices limits this procedure to any rubbers and resins. 1.3 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. Specific precautionary statements are given Notes 4 and 5. Note 1--There is no current ISO equivalent test method for residual acrylonitrile (RAN) determinations. |
||
| 2. Referenced Documents | ||
|
