Explanations:
• IS : 6165–1971–Dimensions for special shapes of clay bricks. • IS 2212-1991–Brick work code for practice. • IS 4860-1968–Specification for acid-resistant bricks. • IS 5779-1986–Specification for burnt clay soiling bricks. • IS 4885-1988–Specification for sewer bricks. • IS 11650-1991–Guide for manufacture of common burnt clay building bricks by semi-mechanized process. • IS 13767-1993–Burnt clay fly ash building bricks.