šŸ”„šŸ”„ Donā€™t Miss Out on Our End of Autumn Sale. If you have any questions, feel free to click the bottom right corner to contact our customer service..

Concat us[email protected]
Shopping Cart

No products in the cart.

šŸ”
BS EN IEC 60695-6-1:2021

BS EN IEC 60695-6-1:2021

$167.15

Fire hazard testing – Smoke obscuration. General guidance

Published By Publication Date Number of Pages
BSI 2021 40
PDF Format Searchable Printable Preview Now
Guaranteed Safe Checkout
Categories: ,

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. Weā€™re here to assist you 24/7.
Email:[email protected]

IEC 60695-6-1:2021 is available as IEC 60695-6-1:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60695-6-1:2021 gives guidance on: a) the optical measurement of obscuration of smoke; b) general aspects of optical smoke test methods; c) consideration of test methods; d) expression of smoke test data; e) the relevance of optical smoke data to hazard assessment. This basic safety publication focusing on safety guidance is primarily intended for use by technical committees in the preparation of safety publications in accordance with the principles laid down in IEC Guide 104 and ISO/IEC Guide 51. One of the responsibilities of a technical committee is, wherever applicable, to make use of basic safety publications in the preparation of its publications. This third edition cancels and replaces the second edition of IEC 60695-6-1 published in 2005 and Amendment 1:2010. It constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: – References to IEC TS 60695-6-30 (withdrawn in 2016) have been removed. – References to IEC TS 60695-6-31 (withdrawn in 2016) have been removed. – References to ISO 5659-2 have been inserted. – The scope contains some additional text. – Terms and definitions have been updated. – Subclause 3.2 has been updated. – Subclause 7.1 has been updated. It has the status of a basic safety publication in accordance with IEC Guide 104 and ISO/IEC Guide 51. This International Standard is to be used in conjunction with IEC 60695-6-2.

PDF Catalog

PDF Pages PDF Title
2 undefined
5 Annex ZA(normative)Normative references to international publicationswith their corresponding European publications
7 English
CONTENTS
9 FOREWORD
11 INTRODUCTION
12 1 Scope
2 Normative references
13 3 Terms, definitions and symbols
3.1 Terms and definitions
15 3.2 Symbols
16 4 General aspects of smoke test methods
4.1 Fire scenarios and physical fire models
17 4.2 Factors affecting smoke production
4.2.1 General
4.2.2 Modes of decomposition
Figures
Figure 1 ā€“ Different phases in the development of a fire within a compartment
19 Tables
Table 1 ā€“ Characteristics of fire stages (from Table 1 in ISO 19706:2011)
21 4.2.3 Ventilation and the burning environment
4.2.4 Time and temperature
4.2.5 Removal mechanisms for smoke particles
5 Principles of smoke measurement
5.1 General
5.2 Bouguer’s law
22 5.3 Extinction area
Figure 2 ā€“ Attenuation of light by smoke
23 5.4 Log10 units
5.5 Light sources
Figure 3 ā€“ Extinction area
25 6 Static and dynamic methods
6.1 Static methods
6.1.1 Principles
26 6.1.4 Prediction of visibility
6.2 Dynamic methods
6.2.1 Principles
6.2.2 Smoke production rate
Figure 4 ā€“ Dynamic smoke measurement
27 6.2.3 Total smoke production
6.2.4 SMOGRA index
28 7 Test methods
7.1 Consideration of test methods
Figure 5 ā€“ Example SPRav versus t curve
Figure 6 ā€“ SMOGRA curve derived from Figure 5
29 7.2 Selection of test specimen
8 Presentation of data
9 Relevance of data to hazard assessment
31 Figure 7 ā€“ Evaluation and consideration of smoke test methods
32 Annex A (informative) Calculation of visibility
A.1 General
A.2 Example
Figure A.1 ā€“ Visibility (() versus extinction coefficient (k)
34 Annex B (informative) Relationships between Ds and some other smoke parameters as measured in ISO 5659-2 [4]
Table B.1 ā€“ Conversion from Ds to some other smoke parameters as measured in ISO 5659-2
35 Figure B.1 ā€“ Smoke parameters related to Ds as measured in ISO 5659-2
36 Annex C (informative) Relationships between per cent transmission, as measured in a “three metre cube” enclosure, and extinction area
Table C.1 ā€“ Conversions from per cent transmission, as measured in the “three metre cube” to amount of smoke (extinction area)
37 Figure C.1 ā€“ Extinction area (amount of smoke) related to per cent transmission as measured in the “three metre cube”
38 Bibliography

Related products

BS EN IEC 60695-6-1:2021
$167.15