ISO 3807:2013 pdf download.Gas cylinders – Acetylene cylinders- Basic requirements and type testing.
ISO 3807 specifies the basic and type testing requirements for acetylene cylinders with and without fusible plugs with a maximum nominal water capacity of 150 1 and requirements regarding production/batch test procedures for manufacturing of acetylene cylinders with porous material.
It does not include details of the design of the cylinder shell; these are specified, for example, in Iso 9809-1, ISO 9809-3, ISO 4706 and ISO 7866.
NOTE The limitation to 1501 is derived from the definition for cylinder in the UN Model Regulations. However, in practice acetylene cylinders in general have lower water capacities than 150 1.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 10297, Gas cylinders — Cylinder valves — Specification and type testing
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
acetylene cylinder
cylinder, manufactured and suitable for the transport of acetylene, containing a porous material (3.6) and solvent (3.9) (where applicable) for acetylene with a valve and other accessories affixed to the cylinder
Note 1 to entry: For solvent-free acetylene cylinders, see Clause 7.
Note 2 to entry: When there is no risk of ambiguity, the word “cylinder” is used.
3.2
cylinder shell
empty cylinder, manufactured and suitable for receiving and containing a porous material (3,6) for use as part of an acetylene cylinder (3,1)
3.3
fusible plug
non-reclosing pressure relief device designed to function by the yielding or melting of a plug of fusible material at a predetermined temperature
3.4
manufacturer
company responsible for filling the cylinder shell (3.2) with porous material (3.6) and which generally prepares it for the first charge of acetylene
3.5
maximum acetylene content
specified maximum weight of acetylene including saturation acetylene (3.8) in an acetylene cylinder (311)
Note 1 to entry: When using tare S, the maximum acetylene charge may be used. The maximum acetylene charge is the maximum acetylene content minus the saturation acetylene.
3.6
porous material
single or multiple component material introduced to or formed in the cylinder shell (3.2), that, (tue its porosity, allows the absorption of a solvent/acetylene solution
Note 1 to entry: The porous material can be either monolithic, consisting of a solid product typically obtained by reacting materials or by materials connected together with a binder, or non-monolithic, consisting of granular, fibrous or similar materials without addition of a binder.
3.7
porosity
ratio of the total volume [water capacity (3.13)] of the cylinder shell (3.2) minus the volume of the solid fraction (portion) of the porous material (3.6), to the water capacity (3.13) of the cylinder shell (3.2)
Note ito entry: For the determination of the porosity see Annex A or Annex I.
3.8
saturation acetylene
acetylene dissolved in the solvent (3.9) in the acetylene cylinder (3.1) at atmospheric pressure (1,013 bar) and at a temperature of 15 °C
3.9
solvent
liquid that is absorbed by the porous material (3.6) and is capable of dissolving and releasing acetylene
Note 1 to entry: The following abbreviations are used: “A” for acetone and “DMF’ for dimethylformamide.
3.10
specified solvent content.ISO 3807 pdf download.