Gives a method for the determination of this quantity of transparent and light-coloured hydrocarbon liquids such as are used in capacitors, transformers, circuit breakers and in cables of the oil-filled type. This method is applicable to liquids having indices in the range 1,33 to 1,7 and at temperatures of 20 to 30 degrees centigrade. It is not applicable, within the accuracy stated of liquids having bubble points so close to the test temperature that a reading cannot be obtained before substantial deterioration takes place.
Số hiệu tiêu chuẩn
ISO 5661
Tên tiêu chuẩn
Petroleum products; Hydrocarbon liquids; Determination of refractive index
Ngày phát hành
1983-10-00
Tiêu chuẩn tương đương
SS-ISO 5661 (1987-10-21), IDT * TS 4368 (1984-12-11), NEQ * ELOT 452 (1983), MOD * NBN T 52-155 (1985), IDT * NEN-ISO 5661 (1984), IDT * NP-3565 (1990), IDT * NEN-ISO 5661:1984 en (1984-04-01), IDT
Từ khóa
Determination * Hydrocarbons * Liquid fuels * Petroleum products * Refractive index * Strain * Testing * Tests * Optical tests
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