Shell specification for thermal insulation, same as Bechtel, KBR, Kvaerner... Is there anyone not using the "shield" PP for hot and cold surfaces, piping and static equipment ditto? Supplier is the static equipment fabricator or the mechanical piping installer, after the pipes have been installed and the affected PP areas identified. Sometimes, this can be defined during the piping design stages, but is usually not very accurate.
cheers,
gr2vessels