Test

Units

Requirement as per Indian Specifications
(IS 710:2010)

Value obtained

1) Dimensions & tolerance

Length

mm

+6 / -0

+2 /-0

Width

mm

+3 / -0

+2 /-0

Thickness

%

±5%: 6mm & above

+2.0

Squareness

%

 Max 0.20

0.10

Edge straightness

%

Max 0.20

0.10

2) Moisture content

%

5-15

8-10

3) Glue adhesion in dry state

Glue shear strength 

N

Avg.1,350
Min.1,100

Avg.1,440
Min.1,275

Adhesion of plies 

Min. Pass

Excellent

4) Resistance to water

Glue shear strength

N

Avg. 1,000
Min.800

Avg.1,160
Min.980

Adhesion of plies

Min. Pass

Excellent

5) Mycological test

Glue shear strength

N

Avg. 1,000
Min.800

Avg.1,130
Min.910

Adhesion of plies

Min. Pass

Excellent

6) Static bending strength

A) Modulus of rupture

N/mm2

a) Along the grain

i) Average

Min. 50

52.5

ii) Min. Ind.

Min. 45

46.2

 b) Across the grain

N/mm2

i) Average

Min. 30

32.10

ii) Min. Ind.

Min. 27

28.50

B) Modulus of elasticity

a) Along the grain

N/mm2

i) Average

Min. 7500

7740

ii) Min. Ind.

Min. 6700

6910

 b) Across the grain

N/mm2

i) Average

Min. 4000

4300

ii) Min. Ind.

Min. 3600

3820

7) Wet bending strength 

A) Modulus of rupture

a) Along the grain

N/mm2

i) Average

Min. 25

27.40

ii) Min. Ind.

Min. 22

24.50

 b) Across the grain

N/mm2

i) Average

Min. 15

17.50

ii) Min. Ind.

Min. 13

14.20

B) Modulus of elasticity

a) Along the grain

N/mm2

i) Average

Min. 3750

3970

ii) Min. Ind.

Min. 3400

3650

 b) Across the grain

N/mm2

i) Average

Min. 2000

2340

ii) Min. Ind.

Min. 1800

2030

8)  Tensile Strength 

N/mm2

              a) Along the grain

42

47.10

              b) Across the grain

25

38.40

              c) Sum of along and across

84.5

85.50

9)  Retention of preservatives                                                  

Kg/m3

12

12.50