Cleaning tanks and vessels is achieved by a mixture of four elements; time, mechanical action, heat and chemical action. These four elements are illustrated on Sinner Circles (Pie Charts), which show the proportional contribution that each element makes to overall cleaning. The mechanical action element is effectively a function of how the cleaning fluid is delivered to the cleaning surface. Similar volumes of water will achieve drastically different mechanical actions depending on the nature of the delivery and delivery of the fluid depends on the pressure it is sprayed at and, most importantly, on the type of tank cleaning head used.
Babcock marks next stage in submarine dismantling project
Surely on a national security project all contractors ought to be UK owned? This is similar to the life enhancement of our nuclear stations which has...