ASTM D1807-2000(2005)
电绝缘液体折射指数和比光散度的标准试验方法

Standard Test Methods for Refractive Index and Specific Optical Dispersion of Electrical Insulating Liquids

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标准号

ASTM D1807-2000(2005)

发布日期

2000年

实施日期

废止日期

无

中国标准分类号

K15

国际标准分类号

29.040.10 (Insulating oils)

发布单位

US-ASTM

适用范围

1.1 These test methods cover the determination of the refractive index and the specific optical dispersion of electrical insulating liquids such as are used in capacitors, transformers, circuit breakers, and oil-filled cables.

1.2 Two test methods are described, a routine method and a more precise referee method. Both methods are applicable to transparent, light-colored, insulating liquids.

1.2.1 The routine method is used to determine refractive index and specific optical dispersion as described in these test methods.

1.2.2 The referee method is used when a test of high accuracy is desired. These methods are described in Test Method D1218. Specific optical dispersion is calculated by dividing the refractive dispersion value determined in Test Method D1218 by the relative density (specific gravity) (see Test Method D1298) of the liquid under test.

1.3 The values stated in SI units are to be regarded as the standard.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.