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الطريقة القياسية لتقدير الرواسب فى الزيت الخام ووقود الأفران بالاستخلاص (ASTM D 473-22 / 2007) (متبناه)

1.1 This test method covers the determination of sediment in crude oils and fuel oils by extraction with toluene. The precision applies to a range of sediment levels from 0.01 % to 0.40 % mass, although higher levels may be determined. NOTE 1—Precisio