Other In-Line Arresters

Some flame arrester designs allow in-place inspection (via a removable honsing cover plate) however, others have to be removed from the vent nozzle or in-line piping to inspect the flame arrester element. 

Coarser particles can be retained in the tank by a coarse mesh strainer fitted in the tank at the outlet point. Water will settle to the bottom of the tank and would not normally be drawn up if the outlet pipe is positioned correctly, and even if it is drawn up, the coarse strainer is reasonably effective in arresting it. Most tanks have strainers and additional protection provided by an in-line disposable filter on the entry side of the fuel pump, together with a settling or sediment bowl on the pump inlet. Further protection is usually provided at the carburettor or fuel injection system entry point with other simple strainers. 

Another peculiarity of the study is that the use of a biological system has allowed the authors to hypothesize a possible mechanism of action of the leachate as a mixture, hypothesis that could have been drafted on the basis of the only knowledge derived by chemical analysis. Researchers suggest that leachate inhibits cell proliferation at low doses probably inducing a reversible cell cycle arrest that becomes irreversible at high doses, probably due to leachate-induced oxidative stress. This activity is mainly due to the chemical compounds extracted in the aqueous phase. Similar effects were noticed by previous investigations on other human cells (human peripheral blood lymphocytes and a human breast cancer cell line, MCF-7) [31, 32], supporting the hypothesis that cells that survive the initial insult from leachate constituents maintains the potential to proliferate until the effects on cell metabolism lead to death. 

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