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Protective clothing combustion test dummy ISO13506 heat and fire test
A protective clothing combustion test dummy is used for heat and fire protective clothing tests, predicting the damage of human models to burning, ISO13506 is the test standard. ISO13506 standard provides a general test method for evaluating the performance of a full set of clothing or protective clothing under a momentary fire or other short-term hazards.
Shanghai Qianshi Precision Electromechanical Technology Co., Ltd. was established in 2012, focusing on the research and development, design, and production of textile testing instruments, providing textile testing instruments and services for academic research units and testing institutions. Shanghai Qianshi is currently one of the most competitive R&D textile testing instrument manufacturers in China. The R&D team is composed of a group of experienced engineers. We are committed to serving customers wholeheartedly and striving to promote technological innovation of textile testing instruments.
This test method describes the thermal protection provided by clothing, based on the determination of heat transfer of full-size human models exposed to laboratory-simulated fires, controlling heat flux density, duration, and flame distribution. Heat transfer measurements can also be used to calculate the risk caused by predicted skin burn injuries. In addition, the overall behavior of the specimen during and after exposure is observed and recorded.
There are three main types of evaluations in this method:
Comparison of garments and overall materials, comparison of garments or overall designs, and evaluation of prototypes or specifications of any garment or complete garment for a specific application.
Each evaluation type has different garments or complete sets of equipment because the test results depend on the properties of the test materials, dimensions, design, and use of the complete set of components.
The purpose of ISO 13506 is to measure and describe the behavior of complete garments or protective clothing in response to convective and radiant energy under controlled laboratory conditions, and to optimize the combination and design of the garment. This standard is not intended to be used to compare the properties of garment materials or combinations of materials unless the specimens are *identical* in size and design. In addition, this standard is not intended to describe or evaluate fire or fire hazards under actual fire conditions. However, the results of the test can be used as a fire risk assessment, taking into account all those factors relevant to the assessment of the fire hazard for a specific use.
Related terms:
Burn:
Burn occurs at all levels of depth within the human tissue due to elevated temperatures from heat transfer surfaces.
Note: Burns in human tissue occur when tissue is heated and maintained at elevated temperatures (>44°C) for a critical period. For this standard, the skin is assumed to have three layers: the epidermis, which is the tough outer layer, the dermis, which is the layer beneath the epidermis, and the subcutaneous tissue, which is the fat layer of the skin deeper than the dermis. This tissue varies in thickness in different parts of the body and from person to person as well as with age. The severity of the damage, referred to as first, second, or third-degree (or partial thickness or full thickness) burns, depends on the level at which the temperature rises above 44°C and the period during which it remains above 44°C. Appendix C gives details of the model and criteria used in calculating damage.
First-degree burns: Only the superficial portion of the epidermis has been injured.
First-degree burn area: The sum of the areas represented by the heat flux sensors for which only first-degree burns occur.
Second-degree burns: The varying degrees of the epidermis and dermis are burned, but the full thickness of the dermis is not destroyed and the subcutaneous layer is not injured.
Second-Degree Burn Area: The sum of the areas represented by heat flux sensors where only second-degree burns occur.
Third-Degree Burn: Burns extending through the dermis into or beyond the subcutaneous fat.
Third-Degree Burn Area: The sum of the areas represented by heat flux sensors where only third-degree burns occur.
Comprehensive Garment:
Any single garment or combination of garments used to protect the torso, arms, and legs of the wearer.
Flame Distribution:
The spatial distribution of incident flames from the test equipment burner provides a controlled heat flux density at the surface of the mannequin.
Transient Flame Fire:
Propagating very quickly through a diffuse fuel-air mixture without producing harmful pressures.
Clothing Comfort:
The difference between (mannequin) dimensions and garment dimensions.
Heat Flux Sensor:
Equipment capable of directly measuring the heat flux density to the surface of the mannequin under test conditions, or providing data that can be used to calculate the heat flux density.
Instrument Dummy:
The model represents an adult-sized human and is fitted with heat flux sensors on the surface for use in the test.
Predicted Total Area of Burns:
The area represented by the heat flux sensors where at least a second-degree burn is calculated.
Full Protective Clothing:
Any combination of complete protective clothing.
Pain Time:
The time is taken below the interface of the epidermis and dermis to reach 43.2°C.
2024-11-27 11:34
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