EN 367 Protective Clothing Heat Transmission on Exposure to Flame Tester

Catalogs for EN 373&348&6942&367&702.pdf

Introduction:

A new term heat transfer index (HTI) has been introduced to avoid confusion with the thermal protective index (TPI) or other terms used in previous versions of this test.

HTI calculated from the mean time in seconds to achieve a temperature rise of 24±0.2℃ when testing by this method using a copper disc and a starting temperature of 25±5℃.

Heat Transmission on Exposure to Flame Tester is used to determine the heat transmission of flame exposure to protective clothing against heat and flames. A classification of materials can be made by comparing the determined heat transfer indices, which serve as a reference for the relative heat transfer under the specified test conditions.

Features:

• Heat Transmission on Exposure to Flame Tester is designed and manufactured according to EN 367 and ISO9151 standards.
• Heat Transmission on Exposure to Flame Tester consists of the burner, the cover sheet and the specimen holder with copper calorimeter.
• The cover sheet and the specimen holder are controlled via pneumatic transmission which is automatically controlled by software.
• A horizontally oriented test specimen subjected to an incident heat flux of 80KW/㎡from the flame of a Meker burner beneath it.
• The heat passing through the specimen is measured by means of a small copper calorimeter on top of and contact with the specimen.
• The time to record a temperature rise of 12 or 24℃ in the calorimeter is recorded in seconds.
• The calorimeter cooling device shorten the test time.
• The mean result for the three test specimens is calculated as the HTI.
• The calibration of heat flow density of 80 kW/㎡is performed automatically by software.

Specifications of Protective Clothing Heat Transmission Tester:

Main Components of Heat Transmission on Exposure to Flame Tester

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