The preparation and use of liquid acetylene is forbidden.
2. Gaseous acetylene, alone, in admixture, or in solution, must not be
compressed above 2 atmospheres absolute except under special permission.
3. The storage of mixtures of acetylene with air or other gases
containing or evolving free oxygen is forbidden.
4. A description of every private plant about to be installed must be
submitted to the local authorities, who, according to its size and
character, may give permission for it to be installed and brought into
use either forthwith or after special inspection. Important alterations
to existing plant must be similarly notified.
5. The firms and fitters undertaking the installation of acetylene plant
must be licensed.
The special enactments fall under four headings, viz., (_a_)
apparatus; (_b_) plant houses; (_c_) pipes; (_d_)
residues.
In regard to apparatus it is enacted that:
1. The type of apparatus to be employed must be one which has been
approved by one of certain public authorities in the country.
2. A drawing and description of the construction of the apparatus and a
short explanation of the method of working it must be fixed in a
conspicuous position under cover in the apparatus house.
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