BS 7904:1998
Current
The latest, up-to-date edition.
Guide to smoke measurement units. Their basis and use in smoke opacity test methods
Hardcopy , PDF
English
15-01-1998
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Committees responsible
Foreword
Guide
Introduction
1 Scope
2 Informative references
3 Symbols
4 Theoretical aspects and units
5 Analysis of units used in standard methods
6 Further information
Annex
A (informative) Extinction area, visibility and 'standard
smoke'
Table
A.1 Relationship between volume of 'standard smoke' and
values for extinction area S
Figures
1 Visibility (a) versus extinction coefficient (k)
2 The attenuation of light by smoke
3 Extinction area
4 Dynamic smoke measurement
List of references
This standard is intended to describe the origins of the units used in the standards relating to measurement of smoke by optical methods, and any relationships between the units.
| Committee |
FSH/21
|
| DevelopmentNote |
Supersedes 95/542183 DC (10/2005) Reviewed and confirmed by BSI, October 2012. (09/2012)
|
| DocumentType |
Standard
|
| Pages |
16
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This British Standard describes the theory of optical measurement of smoke. It describes the different parameters measured, gives examples of the commonly used units, and describes relationships between different parameters. It also reviews some commonly used optical test methods for smoke measurement.
| 13/30255888 DC : 0 | BS ISO 5660-1 - REACTION-TO-FIRE TESTS - HEAT RELEASE, SMOKE PRODUCTION AND MASS LOSS RATE - PART 1: HEAT RELEASE RATE (CONE CALORIMETER METHOD) AND SMOKE PRODUCTION RATE (DYNAMIC MEASUREMENT) |
| 16/30342722 DC : 0 | BS ISO 19703 - GENERATION AND ANALYSIS OF TOXIC GASES IN FIRE - CALCULATION OF SPECIES YIELDS, EQUIVALENCE RATIOS AND COMBUSTION EFFICIENCY IN EXPERIMENTAL FIRES |
| ISO 5660-2:2002 | Reaction-to-fire tests Heat release, smoke production and mass loss rate Part 2: Smoke production rate (dynamic measurement) |
| BS ISO 19703:2005 | Generation and analysis of toxic gases. Calculation of species yields, equivalence ratios and combustion efficiency in experimental fires |
| ISO 5660-1:2015 | Reaction-to-fire tests Heat release, smoke production and mass loss rate Part 1: Heat release rate (cone calorimeter method) and smoke production rate (dynamic measurement) |
| ISO 19703:2010 | Generation and analysis of toxic gases in fire Calculation of species yields, equivalence ratios and combustion efficiency in experimental fires |
| 04/30069011 DC : DRAFT FEB 2004 | ISO/DIS 19703 - GENERATION AND ANALYSIS OF TOXIC GASES IN FIRE - CALCULATION OF SPECIES YIELDS, EQUIVALENCE RATIOS AND COMBUSTION EFFICIENCY IN EXPERIMENTAL FIRES |
| 11/30196234 DC : 0 | BS EN ISO 5659-2 - PLASTICS - SMOKE GENERATION - PART 2: DETERMINATION OF OPTICAL DENSITY BY A SINGLE-CHAMBER TEST |
| BS ISO 5660-1:2015 | Reaction-to-fire tests. Heat release, smoke production and mass loss rate Heat release rate (cone calorimeter method) and smoke production rate (dynamic measurement) |
| ISO 9705:1993 | Fire tests Full-scale room test for surface products |
| BS ISO 5659-2:1994 | Plastics. Smoke generation Determination of specific optical density |
| BS 6853:1987 | Code of practice for fire precautions in the design and construction of railway passenger rolling stock |
| BS 6401:1983 | Method for measurement, in the laboratory, of the specific optical density of smoke generated by materials |
| BS 7622-2:1993 | Measurement of smoke density of electric cables burning under defined conditions Test procedure and requirements |
| BS 476-33:1993 | Fire tests on building materials and structures Full-scale room test for surface products |
| BS 7622-1:1993 | Measurement of smoke density of electric cables burning under defined conditions Test apparatus |
| ASTM E 1354 : 2017 : REDLINE | Standard Test Method for Heat and Visible Smoke Release Rates for Materials and Products Using an Oxygen Consumption Calorimeter |
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