U S A: ASTM C-1240
Europe: CEN EN 13263
Canada: CAN/CSA A23.5-98
China: GB/T 18736-2017
Japan: JIS A 6207: 2000
Brazil: NBR 13956:1997
South Korea: KS F 2567
Standard of Silica Fume (Micro Silica)
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U S A: ASTM C-1240
Europe: CEN EN 13263
Canada: CAN/CSA A23.5-98
China: GB/T 18736-2017
Japan: JIS A 6207: 2000
Brazil: NBR 13956:1997
South Korea: KS F 2567