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ASTM C416-97(2013)
- Standard Classification of Silica Refractory Brick
- standard by ASTM International, 09/01/2013
- Publisher: ASTM
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1.1 This classification is limited to silica brick meeting the following requirements:
Alumina (Al2O 3) content of less than 1.50 %.
Titania (TiO2) content of less than 0.20 %.
Iron oxide (FeO3) content of less than 2.50 %.
Calcium oxide (CaO) content of less than 4.00 %.
Average modulus of rupture of not less than 500 psi (3.45 MPa).