BS 6425-2:1993
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
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Test on gases evolved during the combustion of materials from cables Determination of degree of acidity (corrosivity) of gases by measuring pH and conductivity
Hardcopy , PDF
15-09-1999
English
15-02-1993
Important note : Users cannot be edited or removed once added to your Multi user PDF.
Committees responsible
National foreword
Foreword
Introduction
1. Scope
2. Principle of the method
3. Test apparatus
3.1 Tube furnace
3.2 Tube
3.3 Combustion boats
3.4 Bubbling devices for gases
3.5 Air supply system
3.6 Measuring instruments
4. Conditioning of the samples
5. Test pieces
6. Procedure
7. Determination of the pH value and conductivity
7.1 Calibration of the pH meter
7.2 Determination of the pH value and conductivity of
the solution
8. Expression of the results
8.1 Mean value
8.2 Weighted values
9. Recommended values
Figures
National annex NA (informative) Original IEC text
amended by CENELEC common modifications
National annex NB (informative) Cross-references
Quantifies the amount of acid gases evolved by burning cable components, so that limits can be agreed for cable specifications.
| Committee |
GEL/20/18
|
| DevelopmentNote |
DRAFT FOR COMMENT 89/29387 DC
|
| DocumentType |
Standard
|
| Pages |
16
|
| PublisherName |
British Standards Institution
|
| Status |
Withdrawn
|
| SupersededBy |
| BS 7879:1997 | Sectional specification for equipment cables to be used for digital and analogue communications |
| BS 7211:1994 | Specification for thermosetting insulated cables (non-armoured) for electric power and lighting with low emission of smoke and corrosive gases when affected by fire |
| BS 7655-5.1(1994) : 1994 | SPECIFICATION FOR INSULATING AND SHEATHING MATERIALS FOR CABLES - CROSS LINKED INSULATING COMPOUNDS HAVING LOW EMISSION OF CORROSIVE GASES, AND SUITABLE FOR USE IN CABLES HAVING LOW EMISSION OF SMOKE WHEN AFFECTED BY FIRE - HARMONIZED CROSS LINKED TYPES |
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