| 摘要 |
A composition comprising an unsaturated oil such as corn oil, vegetable oil or sesame oil, a liquid hydrocarbon such as heptane, a C<SUB>1</SUB>-C<SUB>4</SUB>alkoxy-C<SUB>1</SUB>-C<SUB>4</SUB>alkanol such as 2-ethoxyethanol and an oil-soluble dye is employed for accurate, rapid, and highly reproducible determinations of the treatment level and performance of fluorochemically treated grease-repellent paper, which is used for example in food service.
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