| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 1<\/td>\n | BRITISH STANDARD <\/td>\n<\/tr>\n | ||||||
| 2<\/td>\n | Committees responsible for this British Standard <\/td>\n<\/tr>\n | ||||||
| 3<\/td>\n | Contents <\/td>\n<\/tr>\n | ||||||
| 6<\/td>\n | Foreword Foreword to amendment A1 <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | Introduction 1 Scope 2 General notes on tests 2.1 Discard at least the first three layers of film from the roll to be tested before removing te… 2.2 Sample rolls shall be exposed for at least 24 h to the standard atmosphere 23 \u00b1 2 \u00b0C and 50 \u00b1… 3 Thickness 3.1 Determination of thickness by mechanical scanning 3.2 Determination of gravimetric thickness of a sample 3.3 Determination of average gravimetric thickness of a roll 3.4 Crosswise thickness profile and lengthwise variation in thickness 4 Density <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | 5 Width 6 Windability (bias\/camber and sag) 6.1 Principle 6.2 Introduction 6.3 Method A <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 6.4 Method B <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 7 Surface roughness 8 Coefficient of friction 9 Wetting tension (polyolefine films) 9.1 Test principle and introductory remarks 9.2 Apparatus 9.3 Reagents <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 9.4 Test specimens 9.5 Conditioning 9.6 Procedure <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 9.7 Evaluation 9.8 Report 10 Tensile properties 10.1 Test specimens 10.2 Speed of testing 10.3 Result 11 Edge tearing resistance 11.1 Principle 12 Tear resistance 13 Stiffness of film 14 Surface resistivity <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 15 Volume resistivity 15.1 Method 1: Electrode method 15.2 Method 2: Method for wound capacitor dielectric films or films too thin for Method 1 <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 16 Dissipation factor and permittivity 16.1 Method 1 <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 16.2 Method 2 17 Dissipation factor under impregnated conditions 18 Electric strength 18.1 A.C. test 18.2 D.C. test <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | 19 Electrical weak spots 19.1 Method A: Testing narrow strips of film in long lengths 19.2 Method B: Testing wide strips of film <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | 19.3 Method C: Testing of film in rolls 20 Resistance to breakdown by surface discharges 21 Electrolytic corrosion <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | 22 Melting point 23 Dimensional change 23.1 Test specimens 23.2 Procedure 23.3 Results 24 Dimensional stability under tension with rising temperature 24.1 Test specimens 24.2 Procedure 24.3 Results 25 Dimensional stability under pressure with rising temperature 25.1 Test equipment 25.2 Test specimens <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | 25.3 Procedure 25.4 Results 26 Resistance to penetration at elevated temperature 26.1 Principle 27 Volatile content (loss of mass on heating) 27.1 Test specimens 27.2 Procedure 27.3 Result 28 Thermal endurance 29 Burning characteristics 29.1 Principle <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | 29.2 Apparatus 29.3 Test specimens 29.4 Conditioning 29.5 Procedure <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | 29.6 Interpretation of results 30 Water absorption in a damp atmosphere 30.1 Apparatus <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | 30.2 Test specimens 30.3 Procedure 30.4 Results 31 Absorption of liquid 31.1 Principle 31.2 Apparatus 31.3 Test specimens 31.4 Procedure <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | 31.5 Calculations 31.6 Result 32 Ionic impurities 33 Effect of insulating varnishes 33.1 Procedure 33.2 Results <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | 34 Effect of polymerisable resinous compounds in a liquid state 34.1 The effect of polymerisable resinous compounds in the liquid state is determined according t… 34.2 Results Figure 1 – Windability of film. Measurement of bias\/camber; Method A. <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | Figure 2 – Windability of film. <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | Figure 3 – Windability of film. Measurement of sag; Method A Figure 4 – Equipment for testing for electrical faults by Method A <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | Figure 5 – Equipment for testing for electrical faults by Method B <\/td>\n<\/tr>\n | ||||||
| 30<\/td>\n | Figure 6 – Equipment for testing for electrical weak spots by method C Figure 7 – Three-terminal electrode system for low frequencies (up to 50 kHz) <\/td>\n<\/tr>\n | ||||||
| 31<\/td>\n | Figure 8 – Two-terminal electrode system for high frequencies (above 50 kHz) <\/td>\n<\/tr>\n | ||||||
| 32<\/td>\n | Annex ZA (normative) Normative references to international publications with their corresponding European … <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Specification for plastic films for electrical purposes – Methods of test<\/b><\/p>\n |