ISO 15025 Protective Clothing Flame Spread Fire Resistance Test Apparatus

Product Specification

Protective Clothing Flame Spread Fire Resistance Test Apparatus

Product Introduce

This tester is designed to evaluate the limited flame spread of vertically oriented flexible materials, primarily used in protective clothing, when exposed to a small flame. This includes single-layer or multi-component fabrics (such as coated fabrics, quilted fabrics, multi-layer fabrics, sandwich fabrics, and similar combinations). Testing is conducted using two procedures: surface ignition (Procedure A) and bottom edge ignition (Procedure B). These procedures simulate the material's behavior after exposure to a specified flame for 10 seconds, measuring indicators such as flame spread, melting, afterflame time, afterglow time, fragment formation, burning fragments, and hole formation. The tester can evaluate the flammability and flame propagation characteristics of textile fabrics and industrial protective materials (such as workwear, protective suits, or protective clothing components), including measuring damage length (calculated by folding and tearing charred areas in the edge ignition procedure). For multi-layer fabrics, each layer or the entire assembly can be tested separately; for single-layer fabrics, both sides can be tested if the two sides have different performance characteristics. This tester is not suitable for environments with limited air supply, exposure to high-intensity heat sources, or materials that exhibit extensive melting, dripping, or shrinkage (such as certain synthetic fibers that severely deform at high temperatures). It mainly targets textiles and flexible materials in the field of protective clothing to ensure their safety performance under small flame exposure, but does not include integrity testing of the entire garment or long-term heat exposure assessment.

Standard

ISO 15025:Protective clothing — Protection against flame — Method of test for limited flame spread

Applicable Materials:

This tester is suitable for vertically oriented flexible materials, primarily single-layer or multi-component textile fabrics and their combinations in the protective clothing industry. These include single-layer flame-retardant cotton fabrics (e.g., 100% FR cotton, 200-300 g/m², used in basic welding uniforms), coated fabrics (e.g., flame-retardant coated polyester or nylon fabrics, 0.1-0.5 mm thick, used as outer layers of chemical protective clothing, providing both waterproofing and flame retardancy), quilted fabrics (e.g., stitched multi-layer cotton-aramid blends, such as outer cotton and inner Nomex aramid, used in heat treatment workshop uniforms, with seam spacing of 5-10 cm for enhanced durability), and multi-layer fabrics (e.g., three-layer construction consisting of an outer Kevlar aramid layer (cut-resistant and flame-retardant), a middle FR polyester insulation layer (1-2 mm thick), and an inner Modal or cotton lining (comfortable and breathable), used in firefighter jackets and trousers, with a total thickness of 3-5 mm). mm), sandwich fabrics (e.g., a fire-resistant foam core (such as silicone foam) sandwiched between two layers of molded acrylic fiber fabric, used in petrochemical worker suits to provide thermal insulation and limited flame spread control), and similar combinations (e.g., different fabric layers bonded by weaving, quilting, coating, gluing, or heat pressing, such as aramid-cotton-polyimide composites used in welder coveralls)

Technological parameters

1,The combustion chamber is made of stainless steel; elegant appearance, corrosion resistance; Sizes: 1200mm X 600mm x 1200mm;
2,All the sample holders are made of stainless steel manufacturing; corrosion resistance;
3,The sample holders size:1:160*200mm,2:80mm*200mm;
4,Imported standard burner; nozzle orifice 0.19mm; flame height: 25mm ± 2mm; vertical length 40mm ± 2mm;
5,Test time is automatically recorded and storage; timer accuracy 0.1s;
6,PLC control system with touch screen; Test process is more intelligent; Test data is automatically recorded and storage;
7,Imported brands gauge and control valve, the gas pressure is more stable;
8,Imported needle, precisely control the flame height; flame is more stable;
9,High intelligence, simple operation, easy to operate;
10,Two sample holders for the surface burning test and bottom burning test; Material is stainless steel;
11,System automatic ignition and automatic extinguishing;
12,Equipped with a flame height gauge
13,The burner angle is adjustable to horizontal, vertical & 30 °
14,the programmable controller and 7 "touch screen for control / testing / computing / data display.
15,Automatic ignition with pulsed high voltage electronic.
16,No need hand-held stopwatch or timer manuscript; Test time is automatically recorded and generate test reports;
17,The test time and ignition time could be set freely on the touch screen. Meet variety of testing standards;
18,The bottom surface and bottom edge test process could be switched on the touch screen;