SPECIFICATION OF BITUMEN ENAMEL

Test

Requirement

Test Method

Grade  A

Grade  B

Grade  C

Filler content , by ignition

25-35

25-35

45-55

BS 4147:App. B

Density @ 25°C, g/cm3

1.2-1.4

1.2-1.4

1.4-1.65

BS 4147

Soft ening Point (ring &ball),

100-120

115-130

120-150

BS 2000 part 58

Penetration@25°C, 10-1mm

10-20

5-17

5-15

BS 2000: part 49

Flash Point (Cleveland open cup),

250

260

260

BS 4689

Sa g, max, min

@60°C, 24h

@75°C, 24h

Max. 1.5

-

- Max.1.5

- Max. 1.5

BS 4147:

App. E

-

Bend @ 0°C,

min 20

min 15

min 10

BS 4147:

App. F

Peel initial& delayed,

Max; mm

@30°C

@40°C

@50°C

@60°C

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

-

3.0

3.0

3.0

BS 4147:

-

-

-

-

Impact, disbanded

BS 4147: App. G