BRICKS:

1.    Bricks should have uniform size and shape

2.    They shall be uniformly burnt

3.    They should have sharp edges. They should have a frog of 10 mm deep on one of the flat face

4.    They should not absorb water more than 20% of their weight  when measured in the dry and saturated state

5.    They should have uniform colour and texture

6.    They should not break when dropped on the ground from waist height on their flat face

7.    They should emit a ringing sound and not a dull sound when struck on each other

8.    They should have a minimum compressive strength of  15N/mm sq.

9.    They should be free from effloresance

10. The size of brick should be 230x110x65 to 70mm