ยางแท่ง (STR)

Parameter

Latex

Latex / Sheet

Lump / Sheet

STR XL

STR 5L

STR 5

STR 5CV

STR 10

STR 10CV

STR 20

STR 20CV
Dirt retained on 44m aperture (max. % wt.) 0.02 0.04 0.04 0.04 0.08 0.08 0.16 0.16
Ash (max. % wt.) 0.40 0.40 0.60 0.60 0.60 0.60 0.80 0.80
Nitrogen (max.% wt.) 0.50 0.60 0.60 0.60 0.60 0.60 0.60 0.60
Volatile matter (max. % wt.) 0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.80
Initial plasticity (PO) (min) 35.00 35.00 30.00 - 30.00   30.00  
Plasticity Retention Index (PRI) (min) 60.00 60.00 60.00 60.00 50.00 50.00 40.00 40.00
Colour Lovibond Scale (individual value max.) 4.00 6.00 - - - - - -
Mooney, Viscosity ML (1'+4') 100 C* - - - 70 (+7,-5),
60 (+7,-5),
50 (+7,-5)		 - 60 (+7,-5) - 65 (+7,-5)
Colour Coding Marker blue light green light green white on green brown white on brown red white on red

Note:

  • Product limit of 70 (+7,-5), 60 (+7,-5) and 50 (+7,-5) for STR 5CV; 60 (+7,-5) for STR 10CV and 65 (+7,-5) for STR 20CV

All tests performed according to RRIT method referring to SMR Bulletin No. 7 Test method available upon request.