ISO 11372 pdf download

ISO 11372 pdf download Gas cylinders — Acetylene cylinders — Filling conditions and filling inspection
1 Scope
This lnternational Standard specifies minimum requirements for the filling conditions and filling inspection ofacetylene cylinders.
This International Standard is not applicable to an assembly of cylinders connected by a manifold,e.g.bundles (see lsO 13088).
Terms and definitions
For the purposes of this document, the following terms and definitions apply.
2.1
acetylene cylinder
cylinder manufactured and suitable for the transport of acetylene, containing a porous material and solvent(where applicable) for acetylene, with a valve and other accessories affixed to the cylinder
NOTE1 For solvent-free acetylene cylinders,see Clause 4.
NOTE 2 When there is no risk of ambiguity, the word “cylinder” is used.2.2
cylinder shell
(acetylene cylinders) empty cylinder manufactured and suitable for receiving and containing a porous materialfor use as part of an acetylene cylinder
2.3
filler
(gas cylinders) trained person responsible for inspection prior to, during and immediately afte filing
2.4
maximum acetylene content
(acetylene cylinders) specified maximum weight of acetylene including saturation acetylene in the cylinder
2.5
maximum acetylene charge
(acetylene cylinders) maximum acetylene content minus the saturation gas
2.6
porous material
(acetylene cylinders) single- or multiple-component material introduced to or formed in the cylinder shell that,due to its porosity, allows the absorption of a’solvent/acetylene solution
NOTEThe porous material may be either:
monolithic,consisting of a solid product obtained by reacting materials or by materials connected together with abinder, or
non-monolithic, consisting of granular,fibrous or similar materials without the addition of a binder.
2.7
residual gas
(acetylene cylinders)weight of acetylene including the saturation acetylene, contained in a cylinder returnedfor filling
2.8
saturation gas
(acetylene cylinders) acetylene that remains dissolved in the solvent in the cylinder at atmospheric pressure(1,013 bar) and at a temperature of 15 °℃
2.9
solvent
(acetylene cylinders) liquid that is absorbed by the porous material and is capable of dissolving and releasingacetylene
NOTE The following abbreviations are used:—”A’ for acetone;
—“DMF” for dimethylformamide.
2.10
specified solvent content
(acetylene cylinders〉 weight of solvent that the acetylene cylinder shall contain in accordance with the typeapproval
2.11tare
(acetylene cylinders) reference weight of the acetylene cylinder including the specified solvent contentNOTE1 The tare is further specified in accordance with definitions 2.11.1 to 2.11.3.
NOTE2 For cylinders with solvent, the tare is expressed by indicating either tare S or both, tare A and tare S.Forsolvent-free acetyiene cylinders, the tare is expressed by indicating tare F.For the tare used for cylinders in bundles, seeISO 13088.
2.11.1tare A
(acetylene cylinders) sum of the weights of the empty cylinder shell, the porous material, the specified solventcontent, the valve, the coating, where applicable, and all other parts which are permanently attached (e.g. byclamping or bolting) to the cylinder when it is presented to be filled