5. S.No Marble Length in cm Width in cm Height in cm
1. Blocks 30 to 250 30 to 100 30 to 90
2. Slabs 70 to 250 30 to 100 2 to 15
3. Tiles 10 to 60 10 to 60 0.8 to 2.4
6. Marble Requirements Method of test
Moisture absorption after 24hrs
immersion in cold water
Max. 0.4% IS 1124
Hardness Min. 3 Mhos scale
Specific Gravity Min. 2.5 IS 1122
1. IS 1122 Method of test for determination of true specific gravity of natural
building stones.
2. IS 1124 Method of test for determination of water absorption, apparent specific
gravity and porosity of natural building stones.
7.
8.
9. Number of
blocks/slabs/tiles in
the lot
Number of
blocks/slabs/tiles to
be selected in
Sample
Permissible no of
defectives
Sub sample size in
number
Up to 25 3 0 2
26 to 100 5 0 2
101 to 200 8 0 3
201 to 500 13 0 4
