Preventing leaks of gas and oil products is very important because of possible implications for the safety on the location and the environment. One of the main potential sources for leaks are the flange joints in the installations. We have therefore issued strict instructions to make absolutely sure that the joints are leakproof. Qualified fitters and their supervisors are expected to know the instructions and comply with them.Guidelines for the Oil and Gas industry, Health Safety Environment.
How does it works.
Be aware that every country and company has its own and maybe other regulations.
Please ask them before you start the activities and that you understand them.
http://www.ktma.nl/uk/