What is ISO 1043-4 about?
ISO 1043-4 is part forth of the multi-series standard ISO 1043. ISO 1043-4 provides uniform symbols for flame retardants added to plastic materials.
Who is ISO 1043-4 for?
ISO 1043-4 on symbols and abbreviated terms is applicable to:
- Plastic industry
- Manufacturers of flame retardants
- Manufacturers of industrial chemicals used in flame retardants
- Chemical engineers
- Fire safety departments
- Certification bodies
Why should you use ISO 1043-4?
Flames retardants are chemicals that are applied to materials to prevent the start or slow the growth of a fire. They are widely used in many plastic products to improve their mechanical, thermal or electrical properties.
ISO 1043-4 covers the format for application of symbols along with code numbers for flame retardants as per their chemical composition.
With ISO 1043-4, you will be able to gain clarity on symbols and abbreviated terms used for flame retardants in the plastic industry, thereby eliminating misinterpretation or ambiguity amongst entities. As a result, you can grasp information with regards to flame retardants more accurately, enabling better decision making and communication.
What’s changed since the last update?
BS EN ISO 1043-4:2021 supersedes ISO 1043-4:1998. The key technical change includes the addition of code numbers 26, 27, 53, 54, and 55

