IS 9437 : Part 1 : 1979 Specification for Fixed Precision Resistors - Part I : General Requirements and Methods of Test

1 Scope

This standard (Part I) prescribes the requirements and methodsof tests of judging the electrical, mechanical and climaticproperties of fixed precision resistors for use in electronictelecommunication equipment.

1.1.1 Subsequent parts of this standard cover the dimensionaland performance requirements of different types of precisionresistance.

2 References

IS 2 :1960Rules for rounding numerical values

IS 324 :1959Specification for ordinary denatured spirit

IS 589 :1961 Basic climatic and mechanicaldurabilitytests for components for electronic andelectrical equipment

IS 824 :1965Preferred values for resistors and capacitors

IS 1885 : Part XLVI :1977 Electrotechnical vocabulary:Part XLVI Resistors

IS 2612 :1965 Recommendation for type approval and samplingprocedures for electronic components

IS 8186 :1976Marking cods for values and tolerances of resistors and capacitors

IS 9000 : Part XX :1979 Basic environmental testingprocedures forelectronic and electrical items:Part XX Resistance to cleaning solvents andpermanence of markings