NF T51-071：塑料.燃烧性能氧指数评定
NF T51-071：Plastics. Determination of burning behaviour by oxygen index
This standard has been replaced by IEC 60695-2-11/EN ISO 60695-2-11 and is used to small size part of 1 classification in the oxygen index test. The oxygen index test apply the test oxygen index is 70%,45%,32%,28%.
