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New Reduced price! IEC 60970 Ed. 1.0 b:1989 View larger

IEC 60970 Ed. 1.0 b:1989

M00000789

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IEC 60970 Ed. 1.0 b:1989 [ Withdrawn ] Methods for counting and sizing particles in insulating liquids

standard by International Electrotechnical Commission, 06/15/1989

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Describes sampling procedures and methods for determining particle concentration and particle size distribution. Three methods are recommended, one using an automatic particle size analyzer and two based on the counting, with an optical microscope, of particles on the surface of a filtering membrane. All methods are applicable to both unused liquids and liquids in service.