BS 6341 – Specification for Fabrics for Camping Tents
The BS 6341 standard, developed in the United Kingdom, specifies the physical and flammability performance requirements for fabrics used in camping tents. It classifies tents based on usage scenarios, ranging from civilian to military applications. With outdoor activities becoming increasingly popular, this standard is especially important — its stringent flammability testing ensures that tent materials can effectively slow down combustion upon exposure to open flames, providing critical escape time for users.
BS 6341 applies to fabrics used in the manufacturing of camping tents (e.g., ridge tents, frame tents), including both non-floor parts (such as walls and roofs) and floor parts (such as ground sheets).
1. Grades 1–4: Must meet both general performance (Classes A–D) and flammability (Classes E–G) requirements.
2. Grades 5–7: Only required to meet flammability requirements (Classes E–H).
3. Grades 8–10: Only required to meet general performance requirements (Classes A–C).
Class A: Nearly horizontal surfaces (e.g., 15°, such as frame tent roofs).
Class B: Moderately sloped surfaces (15°–75°, e.g., ridge tents).
Class C: Nearly vertical surfaces (>75°, e.g., tent walls).
Class D: Military tents (non-horizontal) with specific requirements for color and strength.
BS 6341 Flammability Requirements and Classification
All flammability tests are conducted in accordance with BS 5438 (Vertical Flame Test). Samples must undergo washing or flexing treatments before initial testing. The side with faster flame propagation is selected as the test face.
1. Test Method: BS 5438 Test 2 (Vertical burn, 10-second flame exposure)
2. Pass Criteria:
a. Flame or burn holes must not reach the top or side edges of the specimen.
b. No flaming debris or molten drops allowed.
c. If one sample fails, six additional samples must be tested — all must pass for overall compliance.
1. Test Method: BS 5438 Test 3 (Vertical burn, 10-second flame exposure)
2. Pass Criteria:
a. In at least 4 out of 6 samples, the flame may sever only 1 marker thread (300 mm).
b. In the remaining 2 samples, severing up to 2 threads (300 mm + 600 mm) is permitted.
c. Any sample severing 3 threads results in immediate failure.
1. Test Method: Same as Class E, with stricter standards.
2. Pass Criteria:
a. No flame (burn time <1 second)
b. No holes
c. No afterglow or smoldering
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1. Flammability testing consultation
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4. Report analysis
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