D483-04 1.1 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. Since the relationship
between unsulfonated residue and the actual composition of the oil is
not known, this test method should be applied only for measuring the
degree of refinement and not for the determination of aromatics or
olefins, or both. 1.2 The values
stated in inch-pound units are to be regarded as the standard.
Standard Test Method for
Unsulfonated
Residue of Petroleum Plant Spray Oils
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