Correct option is A
→ organic content = 200 mg/l.
→ inorganic content = 3000 mg/l.
→ sulphates = 400 mg/l.
→ chlorides = 200 mg/l for concrete work and 500 mg/l for RCC work
→ organic content = 200 mg/l.
→ inorganic content = 3000 mg/l.
→ sulphates = 400 mg/l.
→ chlorides = 200 mg/l for concrete work and 500 mg/l for RCC work
The minimum density (g/cc) of corrugated and semi-corrugated asbestos cement sheets considered acceptable for construction purposes by the Indian standard is: