Thai Latex specification scheme

Characteristic ISO 2004 - 1997 มอก. 980 - 2533 Method of Test
Limits Limits
Type HA Type LA Type XA Type HA Type LA Type XA  
Total solids content, 1)% (m/m), min. 61,5 61,5 61,5 61,5 61,5 61,5 ISO 124
Dry rubber content, 1)% (m/m), min. 60,0 60,0 60,0 60,0 60,0 60,0 ISO 126
Non-rubber content, 2)% (m/m), max. 2,0 2,0 2,0 1,8 1,8 1,8 -
Alkalinity (as NH3), % (m/m), calculated with respect to the latex concentrate 0,60 min. 0,29 max. 0,30 min. 0,60 min. 0,29 max. 0,30 min. ISO 125
Mechanical stability, seconds, min 650 650 650 650 650 650 ISO 35
Coagulum content, % (m/m), max. 0,05 0,05 0,05 0,05 0,05 0,05 ISO 706
Copper content, mg/kg of total solids, max. 8 8 8 8 8 8 ISO 8053
Manganese content, mg/kg of total solids, max. 8 8 8 8 8 8 ISO 7780
Sludge content, % (m/m), max. 0,10 0,10 0,10 0,10 0,10 0,10 ISO 2005
Volatile fatty acid (VFA) number, max. 0,20 0,20 0,20       ISO 506
KOH number, max. 1,0 1,0 1,0       ISO 127
1) The requirement is for either total solids content or dry rubber content.
2) The difference between the total solids content and dry rubber content.