×Note:Special provisions may be very complex. The extracts are taken from 49 CFR §172.102. Please be careful with the information, as necessary, additional conditions may be applied that are not written here. Please check the original source and report bugs. | 371 |
- a. This entry also applies to articles not conforming to the
requirements of Sec. Sec. 173.302, 173.304, or 173.306 of this
subchapter, containing a small pressure receptacle with a release
device. Such articles must comply with the following requirements:
-
(1) The water capacity of the pressure receptacle must not exceed
0.5 L and the working pressure must not exceed 25 bar at 15 [deg]C
(59[emsp14][deg]F);
- (2) The minimum burst pressure of the pressure receptacle must be
at least four times the pressure of the gas at 15 [deg]C
(59[emsp14][deg]F);
- (3) Each article must be manufactured in such a way that
unintentional firing or release is avoided under normal conditions of
handling, packing, transport and use. This may be fulfilled by an
additional locking device linked to the activator;
- (4) Each article must be manufactured in such a way as to prevent
hazardous projections of the pressure receptacle or parts of the
pressure receptacle;
- (5) Each pressure receptacle must be manufactured from material
which will not fragment upon rupture;
- (6) The design type of the article must be subjected to a fire
test. For this test, the provisions of paragraphs 16.6.1.2 except
letter g, 16.6.1.3.1 to 16.6.1.3.6, 16.6.1.3.7(b) and 16.6.1.3.8 of the
UN Manual of Tests and Criteria must be applied. It must be
demonstrated that the article relieves its pressure by means of a fire
degradable seal or other pressure relief device, in such a way that the
pressure receptacle will not fragment and that the article or fragments
of the article do not rocket more than 10 meters; and
- (7) The design type of the article must be subjected to the
following test. A stimulating mechanism must be used to initiate one
article in the middle of the packaging. There must be no hazardous
effects outside the package such as disruption of the package, metal
fragments or a receptacle which passes through the packaging.
- b. The manufacturer must produce technical documentation of the
design type, manufacture as well as the tests and their results. The
manufacturer must apply procedures to ensure that articles produced in
series are made of good quality, conform to the design type and are
able to meet the requirements in (a). The manufacturer must provide
such information to a representative of the Department upon request.
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