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BS 7765:1994

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by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

Available format(s)

Hardcopy , PDF

Superseded date

05-05-2004

Superseded by

BS EN 13763-1:2004

Language(s)

English

Published date

15-11-1994

€217.36
Excluding VAT

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Superseded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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