EN 50267-2-3 common test methods for cables under fire conditions-tests on gases evolved during combustion of materials from cables-Part 2-3: Procedures-Determination of degree pf acidity of gases for cables by determination of the weighted average of PH and conductivity.
EN 50267-2-3 电缆在着火条件下的一般测试方法，电缆材料燃烧过程中释放出的气体的测试，第2-3部分：程序，通过测试量PH值和传导率的加权平均值测定电缆燃烧产生的气体的酸度测试

EN 50267-2-3酸度测试– 测试要求

样品应在(23±2)℃的温度和(50±5)%的相对湿度下保存至少16小时

EN 50267-2-3酸度测试– 标准概述

EN 50267-2-3规定了通过测定组成材料的ph值和电导率的加权平均值来测定电缆或光缆燃烧过程中产生的气体酸度的测试方法和程序。

Scope:

EN 50267-2-3 specifies the test method and procedure for the determination of the degree of acidity of gases evolved during the combustion of electric or optical cables by determination of the weighted average of pH and conductivity of the constituent materials.

NOTE The relevant cable standard should indicate which materials from the cable should be tested.

EN 50267-2-3酸度测试 – 相关标准

EN 60754-1: Test on gases evolved during combustion of materials from cables. Part 1. Determination of the halogen acid gas content
EN 60754-1: 测试电缆材料燃烧过程中产生的气体。第1部分：卤素酸性气体含量的测定

EN 60754-2: Test on gases evolved during combustion of materials from cables. Part 2. Determination of acidity (by pH measurement) and conductivity
EN 60754-2:测试电缆材料燃烧过程中产生的气体。第2部分：测定酸度和电导率

EN 60754-3: Test on gases evolved during combustion of materials from cables. Measurement of low level of halogen content by ion chromatography
EN 60754-3: 测试电缆材料燃烧过程中产生的气体。离子色谱法测定低水平卤素含量