DIN EN 61254:1994-12

Cooperating organizations
National foreword
Foreword
Introduction
1. Scope
2. Definitions
3. List of measurements
4. General conditions for measurements
5. Measuring methods for dimensions
5.1 Overall dimensions
5.2 Mass
5.3 Length of the supply cord
6. Determination of the operation time per charge
6.1 Operation time per battery charge
6.2 Operation time per primary battery
7. Shaving performance
7.1 Composition of the test panels
7.2 Test duration and test procedure
7.3 Distribution of the shavers
7.4 Statistical analysis
7.5 Final ranking
8. Trimmer performance
9. Gravimetric analysis of the difference in closeness
     of shave
9.1 Composition of the test panels
9.2 Test procedure and distribution scheme
9.3 Conversion from mass into average residual hair-
     stubble length
9.4 Statistical analysis
Figures 1 - Schematic presentation of the test procedure
Annexes
A. Questionnaires
B. Instructions to the testers
C. Distribution scheme
D. Possible variations in the testing scheme
E. Application of the method
F. Bibliography
National annex NA (informative) Committees responsible

States and defines the principal performance characteristics for men's electric shavers and describes standard methods for measuring these characteristics. Coverage includes overall dimensions, mass, length of the supply cord, operation time per battery charge, composition of the test panels, distribution of the shavers, and operation time per primary battery. Also gives definitions and annexes.