Slide 4 of 37

Recognition of these factors contributing to flammability led to early attempts to measure FPF performance when ignited by small ignition sources and to attempts to reduce the tendency toward ignition by including additives.

In the early 1970’s US Testing Company collected more than forty different test methods. Many were primitive by today’s standards such as ASTM D 1692. But with so many different testing procedures, it was not difficult to find one or two that most any FPF sample could pass. The use of terminology such as “self extinguishing” and “non burning” that resulted from these tests led to charges against the FPF industry by the Federal Trade Commission.