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5.1 This test method is designed to measure volatile extractable substances that may be released from the microwave receptor material during use. It may be useful to help minimize the amount of volatile extracables through base design or manufacturing processes.

5.2 This procedure can be modified by using an appropriate qualitative GC detection (e.g. a mass spectrometer) instead of a flame ionization detector to identify unidentified volatile extractable substances.

ASTM F1308-2018 Standard Test Method for Quantification of Volatile Extracts in Microwave Receptors for Food Use

Hakbang 1: Saklaw
1.1 This test method covers the full range of microwave receptors.

1.2 This test method covers the procedure for quantifying volatile compounds that have been identified and are gradually formed when a sample of microwave receptors is tested under simulated use conditions.

1.3 This test method is evaluated in conjunction with a variety of volatile compounds (see Statistical evaluation). For compounds other than those evaluated, the analyst should determine the sensitivity and reproducibility of the method by conducting appropriate labeling and recovery studies. Analysts may refer to Convention E260 for guidance.

1.4 In order to verify identity or identify unknown volatile compounds, analysts are encouraged to use techniques such as gas chromatography/mass spectrometry, gas chromatography/infrared spectroscopy or other techniques combined with this test method.

1.5 Sensitivity is about 0.025μg/ in. 2 is used in the compounds studied can be realized in Table 1. If quantitative analysis of other compounds is to be performed and there is uncertainty about the sensitivity of the method, the analyst can be used in combination with the method E260 to determine the sensitivity of the chromatographic method.

ASTM F1308-2018 Standard Test Method for Quantification of Volatile Extracts in Microwave Receptors for Food Use

1.6 Ang mga pagpapahalagang ipinahayag sa mga yunit ng SI ay dapat ituring bilang mga pamantayang pagpapahalaga. This standard does not include other units of measurement.

1.7 This standard is not intended to address all safety concerns associated with its use. Responsibilidad ng mga gumagamit ng pamantayang ito na magtatag ng angkop na kaligtasan, kalusugan at kapaligiran pagtutukoy at upang matukoy ang pagiging angkop ng mga paghihigpit sa regulasyon bago gamitin. Specific security hazards warnings are given in 10.2, 11.1 at 11.6.

1.8 Ang internasyonal na pamantayang ito ay batay sa mga prinsipyo ng standardisasyon na kinikilala ng internasyonal na itinatag sa Desisyon sa mga Prinsipyo para sa Pag unlad ng mga Internasyonal na Pamantayan, Mga Patnubay at Rekomendasyon na inisyu ng WTO Technical Barriers sa Trade (TBT) Komite.

ASTM F1308-2018 Standard Test Method for Quantification of Volatile Extracts in Microwave Receptors for Food Use

2. Sumangguni sa file
TAPPI standard

Relative relative humidity of TIS 808 in a saturated salt solution

Standard conditioning and test environments for T402 paper, Lupon, hand-made paper, and related products are available from the Pulp and Paper Industries Association (TAPPI), 15 Technology Parkway South, Norcross, GA 30092, http:// www.tappi.org. .

Pamantayan ng ASTM

E260 packed column gas chromatography practice

F1317 Test method for microwave oven calibration