IEC 60763-2:2007

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Conditioning of test specimens
4 Drying of test specimens
   4.1 Method A (preferable)
   4.2 Method B
5 Dimensions
   5.1 Thickness
6 Mechanical tests
   6.1 Flexural strength and load to produce a
        standard deflection
   6.2 Apparent modulus of elasticity in flexure
7 Compressibility
   7.1 Principle
   7.2 Test apparatus
   7.3 Test pieces
   7.4 Procedure
   7.5 Results
8 Electric strength in oil
   8.1 General and conditioning
   8.2 Electric strength along laminate (edgewise
        electric strength)
9 Internal ply strength, thermal resistance and
   oil compatibility
   9.1 Principle
   9.2 Test specimens
   9.3 Test apparatus
   9.4 Procedure
   9.5 Determination of the flexural strength
   9.6 Results
10 Apparent density
   10.1 Test specimens
   10.2 Procedure
   10.3 Results
11 Moisture content
12 Shrinkage in air after drying
   12.1 Test specimens
   12.2 Procedure
   12.3 Results
13 Oil absorption
   13.1 Test specimens
   13.2 Procedure
   13.3 Results
14 Ash content
   14.1 Procedure
   14.2 Results
15 Contamination of liquid dielectrics
   15.1 Apparatus
   15.2 Test specimens
   15.3 Procedure
   15.4 Results
16 Conductivity of aqueous extract
   16.1 Procedure
   16.2 Results
17 pH of aqueous extract

IEC 60763-2:2007 gives methods of test applicable for the material classified in IEC 60763-1. This edition includes the following significant technical changes with respect to the previous edition:
The standard has generally been revised editorially and brought into line with IEC 60641-2;
The test method for the determination of the internal ply strength has been replaced with an alternative method; and
The test method for the determination of the thermal resistance has been enlarged in its scope.