Norsok P002 [2021]

An older platform upgrades its water injection pump. The new pump vendor quotes 82 dB(A) at 1m—nominally compliant. However, installation ignores structure-borne path. A month later, cabins 3 decks above report a 50 Hz hum at 45 dB(A). The fix requires decoupling the pump's concrete foundation (€250,000) or accepting a permanent exemption (requires PSA dispensation, often denied).

The 2023 revision (Edition 2) introduced several significant changes to modernize the standard for the digital era: norsok p002

This involves the physical arrangement of the platform. P-002 prohibits locating noisy equipment (e.g., compressors) directly above or below sleeping cabins. It requires double-wall constructions with air gaps for accommodation bulkheads and specifies minimum Sound Transmission Class (STC) values—typically STC 55 for cabin partitions. An older platform upgrades its water injection pump

Control rooms (where emergency response is managed) must maintain to ensure clear speech communication. The standard mandates a Speech Transmission Index (STI) of at least 0.5 in these areas. If the STI falls below 0.45, the room fails the standard, regardless of decibel readings. A month later, cabins 3 decks above report

Successful compliance with NORSOK P-002 follows a strict methodological sequence: