What is the permissible limits for construction of suspended matter in water?

What is the permissible limits for construction of chlorides in water for RCC work?

Which of the following statement is incorrect?

With regard to the curing water, identify the incorrect statement.

To neutralize 200 ml of sample should not require more than 10 ml of ______ normal HCI using methyl orange.

What is the maximum limit (ppm) for SO3 in water?

Presence of acid, alkali _______

What is the permissible limits for construction of sulphates in water?