Cleveland TS23 4YS. Guiding principles for the proof testing of safety instrumented systems (SIS) in the chemical industry. have been developed through research into the practices of proof testing. The proof testing of SIS is an. integral component of the management of functional safety. Its purpose is to confirm the continued.
Psychology of obsession. The definition of obsession is: the inability of a person to stop thinking about a particular topic or feeling a certain emotion without a high amount of anxiety. When obsessed, an individual continues the obsession in order to avoid the consequent anxiety.
In 'love' terms, Obsession is when you are trying to control someone that you think you are in love with. You get them or try to get them, to do what you want them to do. If you break up with them you get all angry and want to destroy their lives and hurt them (inside). This is true obsession.