Abstract
The test method covers standard procedures for measuring and analyzing surface temperatures through microwave interactive packaging and cooking AIDS (i.e. pedestals). This program can be used to measure the temperature of the base/food interface during microwave-handling of food in base based packages, heating pads and crisp sleeves, etc. It can also be used to expose a temperature profile of a base in a vial for testing volatile extracts, or in a liquid (PTFE-fluorocarbon polymer) extraction tank for testing non-volatile extracts. The latter step is carried out to establish the test conditions for the extraction and migration of temperature and time curves that approximate the temperature curves of the actual microwave preparation of the product.

This summary is a brief summary of the reference standards. It is informational only and not a formal part of the standard; The full text of the standard itself requires reference to its usage and scope of application. ASTM provides no warranties, express or implied, and does not represent that the content of this abstract is accurate, complete, or new.

ASTM F874-2019 Standard Test Method for Temperature Measurement and Profile Analysis of Microwave Receptors

Step 1: Scope
1.1 This is a test method for measuring surface temperature, which is achieved by microwave interactive packaging and cooking AIDS (i.e. receptors). It is used to measure the temperature of the receptor/food interface during microwave preparation of food using sensory-based packaging, heating pads and crispy sleeves, etc. It can also be used to measure the temperature of receptors exposed to extraction tests or liquids used in extraction pools for non-volatile extraction tests. The latter step is carried out to establish the test conditions for the extraction and migration of temperature and time curves that approximate the temperature curves of the actual microwave preparation of the product.

1.1.1 Several steps of this test method are taken directly from test method F1308, which provides an extraction test procedure for the base.

1.2 Values expressed in SI units shall be regarded as standard values. This standard does not include other units of measurement.

1.3 This standard is not intended to address all safety concerns associated with its use. It is the responsibility of users of this standard to establish appropriate safety, health and environmental specifications and to determine the applicability of regulatory restrictions prior to use.

1.4 This international standard is based on internationally recognized standardization principles established in the Decision on Principles for the Development of International Standards, Guidelines and Recommendations issued by the WTO Technical Barriers to Trade (TBT) Committee.

ASTM F874-2019 Standard Test Method for Temperature Measurement and Profile Analysis of Microwave Receptors

2. Refer to the file
ASTM standard

F1308 Test method for determination of volatile extracts in microwave receptors for food

F1317 Test method for microwave oven calibration

Test method for absorption of non-volatile ultraviolet (UV) extracts by F1349 microwave receptors

F1500 Test method for quantitative determination of non-UV absorbent non-volatile extracts in microwave receptors using a solvent as a food analog