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BS 7904:1998

Current
Current

The latest, up-to-date edition.

Guide to smoke measurement units. Their basis and use in smoke opacity test methods
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-15-1998

Publisher

British Standards Institution

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.

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.

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

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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PDF - English
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