BS 7691:1994
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Methods for testing resistance to environmental conditions of electronic equipment used in agriculture and horticulture
Hardcopy , PDF
29-12-2006
English
15-07-1994
Committees responsible
Foreword
Methods
1 Scope
2 References
3 Definitions
4 General
5 Designation of environmental tests
6 Tests
6.1 General
6.2 Cold and dry heat (tests A, B and N)
6.3 Damp heat, steady state (test C)
6.4 Damp heat, cyclic (test D)
6.5 Impact (tests E and G)
6.6 Vibration (test F)
6.7 Corrosive atmosphere (test K)
6.8 Dust (test L)
6.9 Air pressure (test M)
6.10 Explosive atmospheres (test P)
6.11 Liquids (test R)
6.12 Solar radiation (test S)
6.13 Readability of displays
6.14 Electromagnetic compatibility (test V)
6.15 Electrical environment (test W)
Annex
A (informative) Example of a test report
Tables
1 Severity levels and locations for cold and dry
heat tests
2 Severity levels and locations for operational
mechanical shock test
3 Defining points of vibration envelopes for random
vibration test
4 Severity levels and locations for dust test
5 Severity levels and locations for water spray
tests
6 Chemicals and locations for chemical spray tests
7 Severity levels and locations for readability test
for displays
8 Severity levels for electrostatic discharge test
Figurew
1 Temperature cycle for cold and dry heat test
2 Damp heat test cycle
3 Schematic arrangement of apparatus for particle
impact test
4 Vibration envelopes for random vibration test,
applicable to locations LE, LF and LG,
respectively
5 Air pressure cycle
List of references
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