ASTM F2013-10 (2016) Standard Test Method for Determination of acetaldehyde Residues in polyethylene terephthalate Bottle Polymers Using an Automatic Static Headspace Sampling Device and Capillary Gas Chromatograph with a Flame Ionization Detector is especially used as a quality control tool for molding or synthesis operations.

Significato e uso

5.1 This test method is especially used as a quality control tool for molding or synthesis operations. Acetaldehyde is a volatile degradation product produced during PET melting processing. Di conseguenza, it is captured in the side wall of the molded product and slowly desorbed into the contents packaged therein. In some foods and beverages, AA can give off an undesirable taste, so it is important to understand its concentration in PET products used in food contact applications.

Metodo di prova standard ASTM F2013-2016 per la determinazione dell'acetaldeide residua nei polimeri da bottiglie di polietilene tereftalato utilizzando un dispositivo di campionamento statico automatico dello spazio di testa e un gascromatografo capillare con rilevatore a ionizzazione di fiamma

5.2 Desorption conditions at 150°C for 60 minutes should ensure that no measurable AA is produced in the sample during desorption.

Fare un passo 1: Scopo

1.1 This test method covers gas chromatography for the determination of ppm residual acetaldehyde (AA) in polyethylene terephthalate (ANIMALE DOMESTICO) homopolymers and copolymers used in beverage bottle production. This includes sample types for amorphous and solid particle samples and billet samples, as opposed to bottling tests (test method D4509), which require 24 hours of desorption into the top space of the bottle at 23°C before concentration. Headspace was quantified by a similar GC method.

1.2 I valori espressi in unità SI sono considerati valori standard. Questo standard non include altre unità di misura.

1.3 Questo standard non è destinato ad affrontare tutti i problemi di sicurezza associati al suo utilizzo. It is the responsibility of the user of this standard to establish appropriate safety and health measures prior to use and to determine the applicability of regulatory restrictions.

Metodo di prova standard ASTM F2013-2016 per la determinazione dell'acetaldeide residua nei polimeri da bottiglie di polietilene tereftalato utilizzando un dispositivo di campionamento statico automatico dello spazio di testa e un gascromatografo capillare con rilevatore a ionizzazione di fiamma

2. Fare riferimento al dossier

Norma ASTM

D4509 Test method for the determination of acetaldehyde content in the 24-hour gas (AIR) space in newly blown PET bottles

E691 Pratica di conduzione di studi interlaboratorio per determinare l'accuratezza dei metodi di prova