ASTM D2029-97(2003)被替代
Standard Test Methods for Water Vapor Content of Electrical Insulating Gases by Measurement of Dew Point
出版：American Society for Testing and Materials
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CONTAINED IN VOL. 10.03, 2005Describes the determination of the water vapor content of electrical insulating gases by direct or indirect measurement of the dew point and the calculation of the water vapor content. Provides four methods: Method A describes the automatic chilled mirror method for measurement of dew point as low as -73 degrees C (-99 degrees F). Method B describes the manual chilled mirror or dew cup method for measurement of dew point as low as -73 degrees C (-99 degrees F).Method C describes the adiabatic expansion method for measurement of dew point as low as -62 degrees C(- 80 degrees F). Method D describes the capacitance method for measurement of dew point as low as 110 degrees C (-166 degrees F).
