This article provides general marine survey guidance. Editions, applicability and interpretations may change; always confirm the governing flag, class, contract and project requirements.
IAQ versus thermal comfort
These terms are often used interchangeably, but they describe different technical questions. Selecting the correct basis determines the sensor, frequency range, operating state, analysis method and the type of conclusion the evidence can support.
Ventilation and carbon dioxide
This is a practical control point in the survey programme. Project teams should define the expected evidence, responsible party and review basis, then keep the vessel condition traceable while the 2 stage is completed.
Humidity, condensation and microbial risk
This is a practical control point in the survey programme. Project teams should define the expected evidence, responsible party and review basis, then keep the vessel condition traceable while the 3 stage is completed.
Good survey evidence connects the reading to the exact vessel condition in which it was captured.
Air speed and draft
This is a practical control point in the survey programme. Project teams should define the expected evidence, responsible party and review basis, then keep the vessel condition traceable while the 4 stage is completed.
Radiant heat and machinery/solar gain
This is a practical control point in the survey programme. Project teams should define the expected evidence, responsible party and review basis, then keep the vessel condition traceable while the 5 stage is completed.
VOC and refurbishment sources
This is a practical control point in the survey programme. Project teams should define the expected evidence, responsible party and review basis, then keep the vessel condition traceable while the 6 stage is completed.
Designing a representative onboard study
This is a practical control point in the survey programme. Project teams should define the expected evidence, responsible party and review basis, then keep the vessel condition traceable while the 7 stage is completed.
PRACTICAL TAKEAWAY
Settle the basis before measurement begins.
The strongest vessel surveys start with an agreed technical question, a controlled operating matrix and clear reporting responsibility. That discipline makes the final evidence easier to trust and act upon.