Frequently Asked Questions

Where to find the noise measurement protocol, how to measure?

The measurement protocol can be found in the Best Practice Guide NEPTUNES in chapter 4 and annexes II (measuring instructions) and 7 (documentation of results). Download the measurement protocol here. The excel form destined to report the general and measurement data can be downloaded here.

What are the costs of noise measurements onboard?

Costs of the noise measurements vary depending on the size of the ship and the number o f noise sources. Based on the experience the average costs will amount € 2500-€ 3000 ex taxation.

How much time takes it to measure all noise sources onboard?

The duration of the measurements onboard amounts to a maximum of one day.

How much time takes it to measure all noise sources onboard?

The duration of the measurements onboard amounts to a maximum of one day.

Who should conduct the noise measurements?

An acoustic expert must perform noise measurements. Be aware that in some countries, the acoustic expert should be certified or even accredited according to a certain standard (e.g., International Laboratory Accreditation Cooperation).

Where to send the report of the noise measurements?

The noise report must be sent to the ESI, the Environmental Ship Index organization via de Port Authorities Rotterdam here

What to do if the access to the ship is not allowed by the captain?

Try calling in the port authorities or the national or regional shipping Inspectorate who are allowed to enter the ship. If this does not work or working onboard is too dangerous due to hazardous substances, one should decide to perform the measurements on a certain distance, see noise measurement protocol.

What to do when noise measurements cannot meet the demands of the measurement protocol?

Measurements must be carried out in a way the requirements of the measurement protocol are met as much as possible. Deviations made, must be justified and described as well as possible.

Foresees the noise measurement protocol for all kinds of seagoing vessels?

Intentionally, the measurement protocol foresees to measure all kinds of noise sources on board of seagoing vessels. If, in a particular situation, it appears that there is a source not mentioned in the measurement protocol, please contact info@neptunes.pro