Dangerous Goods by Road

TE3

Tanks shall in addition meet the following requirements. The heating device shall not
penetrate into, but shall be exterior to the shell. However, a pipe used for extracting the
phosphorus may be equipped with a heating jacket. The device heating the jacket shall be so
regulated as to prevent the temperature of the phosphorus from exceeding the filling
temperature of the shell. Other piping shall enter the shell in its upper part; openings shall be
situated above the highest permissible level of the phosphorus and be capable of being
completely enclosed under lockable caps. The tank shall be equipped with a gauging system
for verifying the level of the phosphorus and, if water is used as a protective agent, with a
fixed gauge mark showing the highest permissible level of the water.

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