BS 7765:1994
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
Specification for detonators for civil use
Hardcopy , PDF
05-05-2004
English
15-11-1994
Committees responsible
Foreword
Introduction
Specification
Section 1. General
1.1 Scope
1.2 References
1.3 Definitions
Section 2. All types of detonators
2.1 Items to be agreed and documented between the
contracting parties
2.2 Type tests
2.3 Marking
Section 3. Electric detonators
3.1 General
3.2 Type tests
3.3 Leading wire colour coding (direct coupling only)
3.4 Precautions against radio-frequency ignition
Section 4. Non-electric detonators
4.1 General
4.2 Type tests for shock tube detonators
Section 5. Detonators intended for use in potentially
explosive atmospheres such as mines
susceptible to firedamp
5.1 General
5.2 Construction
5.3 Electrical characteristics
5.4 Initiation time
5.5 Type test on incendivity
5.6 Detonators used for infusion shot firing
Annex
A (informative) Test procedure for determining the
all-fire and no-fire currents for electric
detonators
Tables
1 Delay accuracy and precision for general purpose
delay detonators
2 Waterproofing test
3 Long term storage test
4 Colour coding of leading wires
5 Electrical characteristics
A.1 Example of test results
A.2 Transformation of percentages to probits
Figures
1 Lead plate initiating power test: comparison
photographs
2 Leading wire abrasion test rig
3 Arrangement for testing of initiation risk
A.1 Relationship between firing current and probability
fusehead firing
A.2 Probit versus logarithm of current
A.3 Relationship between percentages and probits
A.4 Example of tests on fuseheads to determine all-fire
current
List of references
Design, construction, testing and acceptance requirements for electric and non-electric detonators, and detonators intended for potentially explosive atmospheres.
Committee |
W/-
|
DevelopmentNote |
DRAFT FOR COMMENT 93/712067 DC
|
DocumentType |
Standard
|
Pages |
24
|
PublisherName |
British Standards Institution
|
Status |
Superseded
|
SupersededBy | |
Supersedes |
BS 6746C:1969 | Colour chart for insulation and sheath of electric cables |
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