Quote:
I have no personal experience with this, but keep in mind the word BOMB is more than just an acronym.

My guess is an overheated canister would blow apart at the seams first, probably blow the stove off the canister, create a big fireball that would burn anything within a few feet, and spray shrapnel around if the canister fractures.

Perhaps someone here can test one for us and put it on YouTube, and no, I am not volunteering.


The butane canisters are regulated by the DOT-11914 specification to assure safety during transportation which included being heated in the various vehicles and buildings during shipping. http://hazmat.dot.gov/sp_app/special_permits/docs/11000/SP11914.pdf

The containers must not rupture at a pressure of 240 psig and rupture is supposed to be first the bottom end must reverse before rupture. The internal presure developed at 130*F should not exceed 150 psig, so that even if heated to 135*F there is virtually no chance of rupture (except for the situation where the assembly process screws up on that particular can).

(psig= psi gauge rather than absolute psi which would be 14.7 psi higher)

This specification reads, in part,

====================

6. HAZARDOUS MATERIALS (49 CFR § 172.101):
....
Petroleum gases, liquefied
2.1
UN1075

7. SAFETY CONTROL MEASURES:

a. PACKAGING - Prescribed packagings are non-DOT
specification, non-refillable inside containers, with a
water capacity not exceeding 30 cubic inches, and are
constructed in conformance with Dae Ryuk Can Company, Ltd.
drawing PG 405 A 02 and related drawings, or with drawings
PG 405 A 03 or PG 405 A 04 on file with the Office of
Hazardous Materials Special Permits and Approvals (OHMSPA).
Containers conform with DOT Specification 2P
(§ 178.33) except as follows:

§ 178.33-2 Type and size.
(a) * * *
(b) The maximum capacity of containers may not exceed 30
cubic inches. The maximum inside diameter must not exceed
105.5 mm (4.15 inches).
§ 178.33-7 Wall thickness.
(a) The minimum wall thickness must be 0.012 inch.


§ 178.33-8 Tests.
(a) One container out of each lot of 1,000 or less
successively produced must be pressure tested to
destruction. The bottom end of the test container must
reverse prior to any leakage or rupture. The test container
must not burst below 240 psig. Should the test sample fail,
10 additional samples must be taken at random from the lot
and tested as above. If any of the 10 additional samples
fail the test, the lot must be rejected.
Continuation of DOT-SP 11914 (7th Rev.) Page 3
March 7, 2007

§ 178.33-9 Marking.
(a) * * *
(1) "DOT-SP 11914" in lieu of "DOT 2P".
* * *
b. OPERATIONAL CONTROLS - Each container must be filled and
tested in accordance with § 173.304a(d)(3)(ii) except that
the maximum charge pressure may not exceed 60 psig at 70°F,
and the pressure at 130°F may not exceed 150 psig.

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