Applies to cellulosic papers for electrical purposes. It specifies the methods of test to be used in testing cellulosic papers for electrical purposes to meet the requirements prescribed in the specification sheet of EN 60554-3. In this standard, reference is made in several places to ISO standards accompanied by a short description of the method used. It is to be understood that this short description is meant for identification purposes only and that all details should be taken from the ISO standard itself.
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EN 20287:1994 Paper and board - Determination of moisture content - Oven-drying method (ISO 287:1985)
EN 20534:1993 Paper and board - Determination of thickness and apparent bulk density or apparent sheet density (ISO 534:1988)
EN 20535:1994 Paper and board - Determination of water absorptiveness - Cobb method (ISO 535:1991)
EN 20287:1994 Paper and board - Determination of moisture content - Oven-drying method (ISO 287:1985)
EN 20534:1993 Paper and board - Determination of thickness and apparent bulk density or apparent sheet density (ISO 534:1988)
EN 20535:1994 Paper and board - Determination of water absorptiveness - Cobb method (ISO 535:1991)
EN 21974:1994 Paper - Determination of tearing resistance (Elmendorf method) (ISO 1974:1990)
EN 60216-1:2001 Electrical insulating materials - Properties of thermal endurance - Part 1: Ageing procedures and evaluation of test results
EN 60243-1:1998 Electrical strength of insulating materials - Test methods - Part 1: Tests at power frequencies
EN ISO 1924-2:1995 Paper and board - Determination of tensile properties - Part 2: Constant rate of elongation method (ISO 1924-2:1994)
EN ISO 536:1996 Paper and board - Determination of grammage (ISO 536:1995)
IEC 60250:1969 Recommended methods for the determination of the permittivity and dielectric dissipation factor of electrical insulating materials at power, audio and radio frequencies including metre wavelengths
IEC 60450:1974 Measurement of the average viscometric degree of polymerization of new and aged electrical papers
IEC 60554-3-1:1979 Specification for cellulosic papers for electrical purposes. Part 3-1: Specifications for individual materials. General purpose electrical paper
ISO 1924-1:1992 Paper and board -- Determination of tensile properties -- Part 1: Constant rate of loading method
ISO 2144:1997 Paper, board and pulps -- Determination of residue (ash) on ignition at 900 degrees C
ISO 2758:1983 Paper -- Determination of bursting strength
ISO 9964-3:1993 Water quality -- Determination of sodium and potassium -- Part 3: Determination of sodium and potassium by flame emission spectrometry