BCR-175TUNGSTEN (0.18 m2/g) (nitrogen BET specific surface area)
BCR-173TITANIA (8.23 m2/g) (nitrogen BET specific surface area)
BCR-172QUARTZ (2.50 m2/g) (nitrogen BET specific surface area)
BCR-171ALUMINA (2.95 m2/g) (nitrogen BET specific surface area)
BCR-170ALPHA ALUMINA (1.05 m2/g) (nitrogen BET specific surface area)
