BS CECC 40200:1981

Foreword
Preface
Section 1 - Scope
Section 2 - Preferred characteristics, ratings and
            severities for environmental and overload
            tests
2.1 Characteristics
2.1.1 Climatic severities
2.1.2 Temperature characteristics and temperature
       coefficients of resistance
2.1.3 Limits for change in resistance
2.1.4 Limits for insulation resistance
2.2 Ratings
2.2.1 Rated resistance
2.2.2 Tolerances on rated resistance
2.2.3 Rated dissipation
2.2.4 Limiting element voltage
2.3 Severities for environmental and overload tests
2.3.1 Drying
2.3.2 Vibration
2.3.3 Low air pressure
2.3.4 Bump
2.3.5 Shock
2.3.6 Overload
2.4 Derating curve
2.5 Information to be given in detail specifications
2.5.1 Style
2.5.2 Rated dissipation
2.5.3 Limiting element voltage
2.5.4 Isolation voltage
2.5.5 Dimensions
2.5.6 Resistance range
2.5.7 Tolerances on rated resistance
2.5.8 Climatic category
2.5.9 Vibration severity
2.5.10 Low air pressure severity
2.5.11 Bump severity
2.5.12 Shock severity
2.5.13 Limits of resistance change after 1 000 h
       endurance test
2.5.14 Temperature characteristic of resistance
2.5.15 Overload
2.5.16 Derating curve
2.5.17 Marking
2.5.18 Ordering information
2.5.19 Additional information (not for inspection purposes)
Section 3 - Inspection
3.1 Formation of Inspection lots
3.1.1 General
3.1.2 Lot-by-lot testing
3.1.3 Periodic testing
3.2 Test methods
3.3 Qualification approval
3.4 Delayed delivery
Appendix "A" - Fixed sample size Qualification Approval
               test schedules for fixed power resistors
Table A1
Table A2

Prescribes the preferred values for characteristics and ratings, also inspection requirements for resistors having a rated dissipation of up to 1000 W.