It is important to note that NORSOK P-002 does not act in isolation. It is a "top-sheet" standard, meaning it refers extensively to other standards (such as NORSOK L-001 for piping specifications or ISO standards) while adding specific requirements relevant to the offshore environment.
| Standard | Philosophy | Sleeping Cabin Limit | Enforcement | | :--- | :--- | :--- | :--- | | | Life cycle health & safety | 40 dB(A) at night | Mandatory (PSA audit) | | ISO 15667 | General machinery noise | Not specified | Voluntary | | OSHA 29 CFR 1910.95 | Prevent hearing loss only | Not addressed | Compliance via PPE | | UK HSE (NOPSEMA) | ALARP (As Low As Reasonably Practicable) | No numeric limit | Risk-based | norsok p002
Where P-002 truly shines is in its requirements for . During nighttime (23:00 – 07:00), background noise levels in cabins must not exceed LAeq ≤ 40 dB(A) . Furthermore, low-frequency noise (31.5 Hz to 125 Hz) is strictly controlled because structure-borne noise from engines and thrusters can cause disruptive vibration and perception of "pressure," even if A-weighted levels appear low. It is important to note that NORSOK P-002
It is important to note that NORSOK P-002 does not act in isolation. It is a "top-sheet" standard, meaning it refers extensively to other standards (such as NORSOK L-001 for piping specifications or ISO standards) while adding specific requirements relevant to the offshore environment.
| Standard | Philosophy | Sleeping Cabin Limit | Enforcement | | :--- | :--- | :--- | :--- | | | Life cycle health & safety | 40 dB(A) at night | Mandatory (PSA audit) | | ISO 15667 | General machinery noise | Not specified | Voluntary | | OSHA 29 CFR 1910.95 | Prevent hearing loss only | Not addressed | Compliance via PPE | | UK HSE (NOPSEMA) | ALARP (As Low As Reasonably Practicable) | No numeric limit | Risk-based |
Where P-002 truly shines is in its requirements for . During nighttime (23:00 – 07:00), background noise levels in cabins must not exceed LAeq ≤ 40 dB(A) . Furthermore, low-frequency noise (31.5 Hz to 125 Hz) is strictly controlled because structure-borne noise from engines and thrusters can cause disruptive vibration and perception of "pressure," even if A-weighted levels appear low.
