Acetylene compressed into porous matter, with or without
acetone, is excepted from this prohibition.
12. In the case of plants serving 50 lights or less, not more than 100
kilos. of carbide in closed vessels may be kept in the apparatus house
besides the drum actually in use.
A fresh drum is not to be opened before the previous one has been two-
thirds emptied. Opened drums must be closed with an iron watertight lid
covering the entire top of the vessel.
In the case of apparatus supplying over 500 lights, only one day's
consumption of carbide must be kept in the generator house. In other
respects the store of carbide for such installations is to be treated as
a regular carbide store.
13. Carbide drums must not be opened with the aid of a flame or a red-hot
iron instrument.
14. Acetylene apparatus must only be attended to by trustworthy and
responsible persons.
The rules issued by the AUSTRIAN GOVERNMENT in 1905 for the installation
of acetylene plant and the use of acetylene are divided into general
enactments relating to acetylene, and into special enactments in regard
to the apparatus and installation. The general enactments state that:
1.
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