EN 367 and ISO 9151 Protective Clothing Heat Transmission Testing Equipment

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℃.
• It 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:

• Protective Clothing Heat Transmission Testing Equipment is designed and manufactured according to EN 367 and ISO9151 standards.
• It 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:

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