What is the difference between CAL TB-117, CAL TB-133, ASTM E1537 and CAN/ULC S109?

California Technical Bulletin 117 (or CAL TB-117)  is a flammability test for fabrics and films.

Canadian Underwriters Laboratory of Canada S109 (or CAN/ULC S109 ) is the same test as the above. In Canada, both are generally acceptable, depending on how stringent your specific inspector demands the tests to be passed. Our fabrics meet both of these tests.

California Technical Bulletin 133 (Or CAL TB 133) is a flammability test for a complete piece burn tested in its entirety. The test measures things like flame spread speed, toxins released and amount of smoke.

ASTM E1537 is a similar test and generally inspectors will accept both.