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BS 5293-21 95th Edition, February 15, 1995
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Sampling and Testing Carbon Black for Use in the Rubber Industry Part 21: Classification System for Carbon Blacks Used in Rubber Products
Includes all amendments and changes through Reaffirmation Notice , June 1, 2003
Additional Comments: W/D NO S/S
Page Count:12
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Classifies carbon blacks by use of a four-character nomenclature system indicating in particular effect on rate cure and particle size.