1-91 is mainly applicable to the determination of iodineabsorption of furnace carbon black which contains only few polar functional groups on.
１—９１规定的炭黑吸碘值测定方法进行了讨论，着重对试验温度、标准溶液浓度及取样量的规定进行评述，认为国标方法主要用于炭黑表面含极性宫能团很少的炉法炭黑的吸碘值测定。