AS/NZS IEC 60754.2:2017
Test on gases evolved during combustion of materials from cables - Part 2: Determination of acidity (by pH measurement) and conductivity
Specifies the apparatus and procedure for the determination of the potential corrosivity of gases evolved during the combustion of materials taken from electric or optical fibre cable constructions by measuring the acidity (pH) and conductivity of an aqueous solution resulting from the gases evolved during the combustion. The general method specified in this standard is intended for the testing of individual components used in a cable construction. Formulae are given for the calculation of a weighted value for a combination of materials found in a specified cable. The use of this method will enable the verification of relevant requirements for either individual components or combined components of a cable construction stated in the appropriate cable specification. A simplified method is included for the testing of individual components where it is required only to demonstrate compliance with a stated performance requirement for quality control purposes. Identical to and reproduced from IEC 60754-2, Ed. 2.0:2011.
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AS/NZS IEC 60754.2:2017 Test on gases evolved during combustion of materials from cables Determination of acidity (by pH measurement) and conductivity
English
CONTENTS
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Test method principle
5 Test apparatus
5.1 General
5.2 Tube furnace
5.3 Quartz glass tube
5.4 Combustion boats
5.5 Bubbling devices for gases
5.6 Air supply system
5.7 Analytical balance
5.8 Laboratory glassware
5.9 pH meter
5.10 Conductivity measuring device
6 Test specimen
6.1 General
6.2 Conditioning of specimen
6.3 Mass of specimen
7 Test procedure
7.1 General
7.2 Test apparatus and arrangement
7.3 Heating procedure
7.4 Washing procedure
7.5 Determination of the pH value and conductivity
8 Evaluation of the test results
8.1 General method
8.2 Simplified method
8.3 Weighted values
9 Performance requirement
10 Test report
Annex A (informative) Recommended performance requirements
Bibliography
Figures
Figure 1 – Device for inserting combustion boat and test specimen
Figure 2 – Example of a gas washing bottle
Figure 3 – Test apparatus: method 1 – Use of synthetic or compressed air from a bottle
Figure 4 – Test apparatus: method 2 – Use of laboratory compressed air supply
Figure 5 – Test apparatus: method 3 – Use of ambient air sucked by means of a suction pump
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AS/NZS IEC 60754.2:2017 Test on gases evolved during combustion of materials from cables Determination of acidity (by pH measurement) and conductivity
English
CONTENTS
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Test method principle
5 Test apparatus
5.1 General
5.2 Tube furnace
5.3 Quartz glass tube
5.4 Combustion boats
5.5 Bubbling devices for gases
5.6 Air supply system
5.7 Analytical balance
5.8 Laboratory glassware
5.9 pH meter
5.10 Conductivity measuring device
6 Test specimen
6.1 General
6.2 Conditioning of specimen
6.3 Mass of specimen
7 Test procedure
7.1 General
7.2 Test apparatus and arrangement
7.3 Heating procedure
7.4 Washing procedure
7.5 Determination of the pH value and conductivity
8 Evaluation of the test results
8.1 General method
8.2 Simplified method
8.3 Weighted values
9 Performance requirement
10 Test report
Annex A (informative) Recommended performance requirements
Bibliography
Figures
Figure 1 – Device for inserting combustion boat and test specimen
Figure 2 – Example of a gas washing bottle
Figure 3 – Test apparatus: method 1 – Use of synthetic or compressed air from a bottle
Figure 4 – Test apparatus: method 2 – Use of laboratory compressed air supply
Figure 5 – Test apparatus: method 3 – Use of ambient air sucked by means of a suction pump
Blank Page
Previous versions
AS/NZS IEC 60754.2:2017
Online Library subscription information
Online library subscriptions provide a cost-effective solution for organisations of any size to access the latest standards, offering 24/7 access to a personalised catalogue. The service ensures subscribers have have the most up-to-date version of selected standards, incluing automatic updates for any amendments or versions. Pricing is dependent on the chosen standards and the number of concurrent users, with discounts applied from the standards PDF price. For customised subscriptions or further inquiries, contact the Online Library team.