ASTM F1955 sleeping bag flame retardant test method analysis

Sleeping bag burning performance tester, mainly used in the sleeping bag flame retardant performance test, according to customer requirements to provide manual testing, and automatic testing two modes.

Comply with the standard: ASTM F1955, CPAI 75.

Sample preparation and handling.

1. Sample: 30cm (12in.) x 36cm (14in.), if there are reasons for the structure of the sample sleeping bag and can not be cut out of the specified size, you can cut the size of 30cm (12in.) x 71cm (28in.) from the same material under the sample, folded to form a test sample.

2. Washing: Wash five test samples with water, three times, according to the manufacturer's recommended method.

3. Compression: Compress the sample by 50% to half of its normal thickness and keep it for 24 hours before testing.

4. Recovery: After 24 hours of compression, allow the samples to recover naturally for at least 1 hour.

Test Method.

1. Mount the sample on the test stand and clamp the three sewn edges.

2. Place two white #50 mercerized cotton threads at 3.8cm and 28cm from one end of the sample (the ignition end), tie a weight to the ends of the threads and hang them while pulling them tight. The two positions are the beginning and end of the timekeeping point

3. Adjust the fire source and place it in the test cabinet with the sample mounted on the test stand, with the top of the burner tube at a distance of 1.9cm (0.75in.) from the sample.

4. Pull down the door of the test cabinet

5. Let the fire source burn the sample for 30 seconds

6. When the first line is burned and the hammer is dropped, the time is recorded and stopped when the second line is burned or when the fire is extinguished, and the distance of flame spread is measured and recorded.

7. Repeat the test for the remaining samples

Result determination.

Test parameters (T time): burning off the first line, start timing; burning to the second line for the time to terminate; or no burning to the second line, the time to extinguish. 

Test parameters (D damage distance): from the first line to measure the length of damage caused by burning, to the second line as the end of the

The instrument is designed so that the flame height can be adjusted by a rotameter, and the test is timed with a stopwatch starting when the first line begins to burn off; when burning to the second line or not, the time used when measuring extinguished.