Astlett Rubber Inc.

 
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Standard Thai Rubber (STR)
Specification Scheme

  TSR CV TSR 5
Parameter

STR
5 CV

STR
XL

STR
5L

STR
5

STR
10

STR
10CV

STR
20

STR
20CV

Dirt (% wt, max)

0.04

0.02

0.04

0.04

0.08

0.08

0.16

0.16

Ash (% wt, max)

0.60

0.40

0.40

0.60

0.60

0.60

0.80

0.80

Nitrogen (% wt, max)

0.60

0.50

0.60

0.60

0.60

0.60

0.60

0.60

Volatile Matter (% wt, max)

0.80

0.80

0.80

0.80

0.80

0.80

0.80

0.80

Initial Plasticity (min)
NA
35
35
30
30
NA
30
NA
PRI index (min)

60

60

60

60

50

50

40

40

Colour Lovibond Scale
(individual value, max)
NA
4.0
6.0
NA
NA
NA
NA
NA
Mooney Viscosity**
(ML, 1+4, 100C)
60
+7/-5
NA
NA
NA
NA
60
+7/-5*
NA

65
+7/-5
*


*Not specification status, but are controlled at the producer end.

**Note: Mooney Viscosity limits at time of production. Values will drift higher over time.

These figures are limits, not typical values. Typical values will vary by producer.

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