BS 535:1987
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Specification for light sources for miners\' portable electric lamps
Hardcopy , PDF
15-03-1997
English
27-02-1987
Foreword
Committees responsible
Specification
Section one. General
1 Scope
2 Definitions
3 Batch acceptance on a statistical basis
4 Requirements and tests for inspection, rating and
life
5 Conditions of compliance
Appendices
A Statistical basis of the tests
B Auxiliary light sources
C Light sources for applications other than British
coal mines
D Numbering system for standard light source data
sheets
Tables
1 Inspection test quantities and compliance numbers
2 Rating test quantities and compliance numbers: ageing
3 Rating test quantities and compliance numbers:
current or luminous flux
4 Rating test quantities and combined compliance
numbers: current and luminous flux
5 Life and type test quantities and compliance numbers
Section two. Standard data sheets for light sources
intended for use in British coal mines
Section three. Standard data sheets for light sources
intended for applications other than
British coal mines
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