Sleeping Bag Flammability Tester TF323
Sleeping Bag Flammability Tester, to determine the flammability resistance of sleeping bag.
Sleeping Bag Flammability Tester, to determine the flammability resistance of sleeping bag. Both manual testing method and automatic testing method can be performed. Flame height can be adjusted through gas valve provided.
Ten specimens are cut from individual sleeping bags or a physically accurate facsimile. A standard-ized flame is applied to the folded edge for a specified time under controlled conditions and the burn rate is calculated to determine if the specimens meet specification requirements.
- Stainless steel test chamber (Includes glass viewing windows)
- Stainless steel support frame
- Sample clamp with U-shaped
- #50 White mercerized cotton thread
- Burner diameter: 0.90+-0.03mm
- Burner length: 1.60+-0.05mm
- Burner tube inside diameter: 10mm
- Burner tube length: 38mm
- Weight hammer: 2
|220/110 V||50/60 Hz|
|Length:||800 mm||Width:||720 mm||Height:||760 mm|
|ASTM F1955||CPAI 75|
The Importance of Flammability Testing of Sleeping Bags
Many fabrics due to physical makeup or the finishing processes are combustible to some degree. Finishes and fabric surface changes can exert a large effect on flammability. Some combustible fabrics, when used for sleeping bags are potentially dangerous to the user because of ease of ignition and burn rate. One of these characteristics can be measured with this test method. Therefore, sleeping bags are tested before as well as after laundering or dry cleaning in accordance with the manufacturer’ instructions.
This standard should be used to measure and describe the properties of materials, products, or assemblies in response to heat and flame under controlled laboratory conditions. The test method covers a means to measure the end use flammability, for example, burn rate of sleeping bags which use various materials and constructions in their manufacture. The test results can be used as one of the elements of fire risk assessment.
1 Cut the sample with the size of 300mm*360 mm. If the size of the sample cannot be cut out due to the structure of the sleeping bag, cut the sample with the size of 300mm*710mm from the same material and folded to form the test sample.
2 Wash five test samples three times according to the method recommended by the manufacturer.
3 Before testing, compress the sample to half its normal thickness and keep it for 24 hours. Then let the sample return naturally for at least 1 hour.
1 Hold the specimen horizontally on the test stand, gripping the three stitched edges of the sample.
2 Place two treated white cotton threads at the end of 38mm and 280mm from which the sample was ignited. The two ends of the wire were fastened with a heavy hammer and the cotton thread was hung by the weight hammer to tighten the cotton thread.
3 Adjust the flame source and place it in the test cabinet where the sample was installed. The distance from the combustion tube to the sample was 19mm.
4 Pull down the door of the test cabinet, let the fire burn the sample for 30s, start when the first cotton thread is burned, stop when the second cotton thread is burned or the fire goes out. Measure the flame spread distance and record burning time.
5 Repeat test the remaining samples and calculate the average value. When the average combustion rate of 10 samples is less than 150mm/min and no single sample is above 200mm/min, the test result is passed, otherwise, it is evaluated as non-pass.