BSI PD IEC TS 60695-5-2:2021

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Fire hazard testing – Corrosion damage effects of fire effluent. Summary and relevance of test methods

Published By	Publication Date	Number of Pages
BSI	2021	26

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This part of IEC 60695, which is a technical specification, gives a summary of the test methods that are used in the assessment of the corrosivity of fire effluent. It presents a brief summary of test methods in common use, either as international standards or national or industry standards. It includes special observations on their relevance, for electrotechnical products and their materials, to real fire scenarios and gives recommendations on their use.

One of the responsibilities of a technical committee is, wherever applicable, to make use of basic safety publications in the preparation of its publications. The requirements, test methods or test conditions of this publication will not apply unless specifically referred to or included in the relevant publications.

PDF Catalog

PDF Pages	PDF Title
2	undefined
4	CONTENTS
6	FOREWORD
8	INTRODUCTION
9	1 Scope 2 Normative references 3 Terms and definitions
11	4 Classification of test methods 4.1 General 4.2 Test specimen 4.2.1 Product testing 4.2.2 Material or composite sample testing 4.3 The physical fire model 4.4 The nature of the corrosivity measurement 4.4.1 Product as target 4.4.2 Simulated product as target
12	Table 1 – Characteristics of fire stages (from Table 1 in ISO 19706:2011)
13	4.4.3 Indirect assessment 5 Published test methods 5.1 General 5.2 Tests for the determination of halogen acid in combustion gases 5.2.1 Standards 5.2.2 Purpose and principle 5.2.3 Test specimen 5.2.4 Test method 5.2.5 Repeatability and reproducibility
14	5.2.6 Relevance of test data to corrosion hazard assessment 5.3 Tests for the determination of the acidity and conductivity of combustion gases dissolved in an aqueous solution 5.3.1 Standards 5.3.2 Purpose and principle 5.3.3 Test specimen 5.3.4 Test method 5.3.5 Repeatability and reproducibility
15	5.3.6 Relevance of test data to corrosion hazard assessment 5.4 Tests for the determination of corrosive gases by evaluation of copper corrosion in ASTM D 2671 – Sections 89 to 95 [9] 5.4.1 Purpose and principle 5.4.2 Test specimen 5.4.3 Test methods 5.4.4 Special observations 5.4.5 Repeatability and reproducibility 5.4.6 Relevance of test data to corrosion hazard assessment
16	5.5 Cone corrosimeter method 5.5.1 Standards 5.5.2 Purpose and principle 5.5.3 Test specimen 5.5.4 Corrosion target 5.5.5 Test method
17	5.5.6 Special observation 5.5.7 Repeatability and reproducibility 5.5.8 Relevance of test data to corrosion hazard assessment 6 Overview of methods and relevance of data Figure 1 – Schematic drawing of a typical corrosion target of defined metal thickness
19	Table 2 – Overview of corrosivity test methods
20	Annex A (informative) Acidity and conductivity of aqueous solutions – Test methods Table A.1 – Test methods for the measurement of acidity and conductivity of aqueous solutions obtained after bubbling combustion effluent through water
21	Annex B (informative) Determination of repeatability and reproducibility – Comparative tests of solutions of combustion gases
22	Table B.1 – Determination of repeatability and reproducibility – Comparative pH tests on solutions of combustion gases
23	Table B.2 – Determination of repeatability and reproducibility – Comparative resistivity tests on solutions of combustion gases
24	Table B.3 – Results obtained on brominated polycarbonate
25	Bibliography