ASTM F1308-98(2023) PDF

Overview

ASTM F1308-98(2023) - Standard Test Method for Quantitating Volatile Extractables in Microwave Susceptors Used for Food Products establishes a detailed, reproducible procedure to measure and quantify volatile compounds released from microwave susceptors under conditions simulating their actual use with food products. Microwave susceptors are materials typically used in food packaging to enhance the heating efficiency when microwaved. Monitoring and minimizing the volatile extractables from these materials is critical for food safety, regulatory compliance, and quality assurance.

This standard is applicable to complete microwave susceptor assemblies and provides guidance for testing, calibration, and analytical methodologies, ensuring results that are reliable and transferable across laboratories. The test method aligns with internationally recognized principles as per WTO TBT Committee recommendations, supporting global harmonization in packaging material safety assessment.

Key Topics

• Quantitation of Volatile Extractables

  • Focuses on quantifying established volatile compounds that may be emitted during microwave use.
  • Ensures the measurement of substances relevant to food safety and consumer protection.

• Simulated Use Testing

  • Recommends sample testing under conditions that replicate intended use in food heating, ensuring practical applicability of results.

• Analytical Methodology

  • Utilizes gas chromatography (GC), with guidance to incorporate detectors such as flame ionization (FID) or mass spectrometry (GC-MS) for identification and quantitation.
  • Details calibration procedures with standard solutions, rigorous apparatus preparation, and quality control through control blanks.

• Sensitivity and Reproducibility

  • Establishes achievable sensitivity limits (e.g., approximately 0.025 μg/in² for evaluated compounds).
  • Encourages verification through spike and recovery studies, referencing ASTM Practice E260 for chromatographic methods.

• Material Guidelines

  • Emphasizes using samples representative of the entire susceptor, stored under controlled humidity and temperature to ensure consistency.

• Safety and Regulatory Considerations

  • Advises users to determine and apply pertinent safety, health, and environmental practices, as well as regulatory limitations.

Applications

The ASTM F1308-98(2023) test method offers value across several domains:

• Food Packaging Design and QA

  • Enables manufacturers to evaluate and optimize susceptor design and materials to limit potentially harmful volatile emissions during microwave heating.
  • Supports compliance with food safety standards and regulatory requirements.

• Material and Supplier Qualification

  • Provides a robust, standardized approach for vetting new materials or suppliers by quantifying volatile extractables released during realistic use scenarios.

• Regulatory Submissions and Documentation

  • Facilitates the generation of data for regulatory filings regarding the safety and suitability of food-contact microwave packaging materials.

• Research and Development

  • Offers a scientific basis for developing new susceptor technologies or alternative food packaging solutions focused on minimizing chemical emissions.

• Interlaboratory Comparability

  • The method’s standardization of conditions and analytical techniques ensures data comparability within the industry and among international partners.

Related Standards

The following standards and practices are referenced in ASTM F1308-98(2023) or are related to the quantitation of volatile extractables in packaging materials:

• ASTM E260 – Practice for Packed Column Gas Chromatography: Guidance for sensitivity and reproducibility studies in chromatographic quantitation.
• ASTM F1317 – Test Method for Calibration of Microwave Ovens: Essential for achieving standardized heating conditions in sample preparation.
• TAPPI T 402 – Standard Conditioning and Testing Atmospheres for Paper, Board, Pulp Handsheets, and Related Products: Defines protocols for controlling humidity and temperature during sample storage and testing.
• TAPPI TIS 808 – Equilibrium Relative Humidities over Saturated Salt Solutions: Guidance on achieving specified environmental conditions for test samples.

Summary

ASTM F1308-98(2023) is a critical standard for quantitating volatile extractable compounds in microwave susceptors designed for food packaging applications. By following this robust, internationally recognized method, manufacturers, laboratories, and regulatory bodies can ensure product safety, support material innovation, and maintain consumer trust in microwaveable packaged foods.