Diamensions,mm
a) length
b) width
c) thickness

4 of
IS:12049

Tolerance of
+6mm
-0mm
+3mm
-0mm
+5%
-5%

+3mm
+1mm
+2%

4of
IS:12049

4of
IS:12049

Resistance to water,
Adhesion to plies
Cycles of 3hr
(3@60+2⁰C
&16 h drying
65+2⁰C),N

11.2

Min.pass
Standard

Pass
Standard

Modulus of elasticity,
n/mm²
i)Parallel to the face grain
a)Average
b) Min. Individual
ii) Perpendicular to the Face grain
a)Average
b) Min. Individual

11.4
4000
3600

2000
1800

4338
4174

2834
2367

Modulus of repture
N/mm²
i)Parallel to the Face grain
a)Average
b)Min. Individual
ii)Perpendicular to the Face grain
a)Average
b) Min. Individual

11.4

30
27

15
13

34.7
31.5

23.3
21.4

Diamensions,mm
a)length
b)width
c)thickness
d)Squareness,%
e)Edge Straightness, %

Tolerance of
+6mm
-0mm
+3mm
-0mm
+5%
0.2%
0.2%

+3mm
+mm
+3%
0.12
0.11

Diamentional changes caused by humidity.
a)Changes in length,mm
from 65%RH to 90%RH
from 65%RH to 40%RH
b)Changes in width,mm
from 65%RH to 90%RH
from 65%Rh to 40%RH
c)Local Planeness
d)At extreme range
of humidity

+1
+1

+1
+1
<1/150
No delaminaiton

 
+0.72
-0.59

 
+0.42
-0.38
1/163.4
No delamination

Resistance to water
(3hr. soaking in water at 60=2⁰C)

Min.pass standard

Pass standard

Conforms

Modulus of elasticity, N/mm²
a)Average
b)Min. Individual

4000
3400

5124
4141

Modulus of rupture, N/mm²
a)Average
b)Min. Individual

40
34

50.4
42.1