ASTM D483 UNSULFONATED RESIDUE OF PETROLEUM PLANT SPRAY OILS
This test method covers the determination of unsulfonated residue in plant spray oils of petroleum origin and applies only to the petroleum oil content. It provides a measure of the degree of refinement of plant spray oils by determining
the extent to which the oil is attacked by 98.61 % sulfuric acid under closely standardized conditions.
Consisting of 4 places shaking machine with bath 100°C, heated centrifuge, 4 sulfonation flask 50ml, 4 buckets with Polyurethane support.