You may be surprised to learn that not all flame-resistant (FR) rainwear is ASTM F2733 compliant. ASTM F2733 is a specific standard that outlines the minimum performance criteria and testing methods for FR rainwear designed to protect against flame hazards, such as flash fires.

Manufacturers must ensure their products meet these requirements to claim compliance with ASTM F2733. At NASCO your safety is of the utmost importance. On each product page you’ll find the designations of the safety standards for all the products we sell.


When selecting FR rain gear, it is essential to look for products explicitly labeled as compliant with ASTM F2733 in addition to any other relevant standard(s) applicable to your work environment. The rainwear should have proper labeling, including the manufacturer’s name, size, care instructions, and relevant performance ratings. ASTM F2733, titled “Standard Specification for Flame-Resistant Rainwear for Protection Against Flame Hazards,” is a critical standard for ensuring the safety and performance of flame-resistant (FR) rainwear. Developed by the American Society for Testing and Materials (ASTM), the standard outlines the minimum performance criteria that FR rainwear must meet to protect workers from exposure to flame hazards, such as flash fires. The importance of ASTM F2733 lies in the following aspects:

  1. Performance Requirements: The standard sets the minimum requirements for various performance aspects of FR rainwear, including flame resistance, water resistance, and thermal stability. By establishing these criteria, ASTM F2733 ensures that compliant rain gear provides reliable protection against flame hazards in wet conditions.
  2. Test Methods: ASTM F2733 specifies the test methods for evaluating the performance of FR rainwear. These tests help manufacturers assess the quality and effectiveness of their products, ensuring they meet the established performance criteria.
  3. Labeling and Marking: The standard requires that FR rainwear compliant with ASTM F2733 is appropriately labeled and marked. This includes the manufacturer’s name, size, care instructions, and relevant performance ratings. Proper labeling and marking allow users to easily identify compliant rainwear and ensure they are using appropriate protective gear.
  4. User Safety: ASTM F2733 is crucial for user safety, as it helps ensure that FR rainwear provides adequate protection against potential flame hazards in wet work environments. Using rainwear that complies with this standard can reduce the risk of severe burns and other injuries that may result from exposure to flame hazards.

By specifying the minimum performance requirements, test methods, and labeling for FR rainwear, ASTM F2733 plays a vital role in promoting worker safety in industries where flame hazards are present.

At NASCO, we can help you select the right FR Rainwear for your specific environment, feel free to contact us here, and a member of our team will be happy to help.