Author Archives: Constellation Marine Services

NOISE LEVEL SURVEY ON BOARD SHIPS AND ADVERSE EFFECT

ABNORMAL NOISE LEVELS ON BOARD SHIPS AND ADVERSE EFFECT ON SEAFARERS HEALTH & SAFETY

We, Constellation Marine Services LLC as independent ship and marine surveyors do attend nominations from various clients to carry out the Noise Level survey. Recently we got a nomination from one of our clients to carry out the Noise level survey onboard an Anchor Handling Tug. Our Naval Architect/Marine Surveyor upon receipt of the instruction, arranged to attend an inspection onboard the subject vessel.

 

BACKGROUND

The purpose of noise level survey onboard ships is to provide a safe working condition by taking into consideration the need for verbal communication and to attend to audible alarms. Also to provide an environment where decisions on clear-heard instructions could be made at control stations, navigation bridges, radio room, and manned machinery spaces (Ex. Engine Control Room).

It will protect the seafarer from excessive noise levels which could give rise to noise-induced hearing losses and also to provide the seafarer with an acceptable degree of comfort during rest, recreation, and other spaces and also provide conditions for recuperation from the effects of exposure to high noise levels. Seafarers should not be exposed to noise level above 85dB, however in case of spaces with exceeding 85dB sound levels, seafarers should use suitable hearing protection equipment.

In order to have seafarers, proper rest hours accommodation spaces should be reasonably acoustic proof.

STANDARDS FOLLOWED

International standards on noise levels to be maintained onboard vessels have been developed as (IMO Res. MSC.337 (91), CODE ON NOISE ON BOARD SHIPS)

Equipment used for the inspection are calibrated in accordance with IEC 60942-1:2003 & measurement levels/methods is based on ISO 2923:1996. Measurement of noise levels was conducted at 80% of the MCR (maximum continuous rating).

INSPECTION ONBOARD

Inspection was carried out in all work, accommodation, navigational & service spaces. Readings observed during the inspection were noted to be within acceptable limits. In engine room noise level noted to above 85db,

Maximum Acceptable Sound Pressure Levels are given in dB (A)

No. Designation of rooms & spaces Noise Limit (dB)
1. Workspaces  
1 Machinery spaces 110
2 Machinery control rooms 75
3 Workshops 85
4 No.-specified workspaces 85
   
2 Accommodation
1 Cabins & Hospitals 60
2 Mess Rooms 65
3 Recreation rooms/day rooms 65
4 Offices/treatment rooms 65
5 Open recreation spaces 75
   
3 Navigational spaces
1 Navigational bridge & chartrooms 65
2 Listening/look-out posts, including navigational bridge 70
3 Separated radio rooms (with radio equipment operating but not producing audio signals) 60
4 Radar Rooms 65
     
4 Service spaces  
1 Galleys, without food processing equipment, operating 75
2 Serveries and pantries 75
     
5 Normally unoccupied spaces  
1 Spaces not specified 90
2 Suez crew room 65

 

References:

  • MSC 337(91); CODE ON NOISE ON BOARD SHIPS
  • IMO Resolution A.468 (XII) – 11:1981; CODE ON NOISE

 

Prepared by Engr. Vignesh Prabhu.

Naval Architect/Marine Surveyor.

 

IIMS President’s Column

Dear IIMS Member I hope you and your families are keeping well during these testing times that we are facing the world over.

They say there’s never a perfect time to say goodbye, nor is there a perfect time to hand over the ‘gong’, especially in the middle of a storm which is playing havoc in our lives on two fronts – our, health and the economy. On the brighter side, we have positive news coming your way as Geoff Waddington takes over this column as your incoming President. Geoff is not only an optimist but has a lot of experience and knowledge to share. I have known him for many years as a friend first, and also as an IIMS board member. I assure you he is a people’s man and very approachable

This is my last column as I near the end of my two years as President. The time has flown, so let me ponder on some of the more testing moments and positive experiences. It was 6 years ago when my name was put forward for the Deputy Vice President’s role, bringing on a younger generation with new ideas. Hopefully, I have fulfilled some of that expectation, particularly with taking IIMS forward digitally. Since then we have made noticeable progress, driven mainly by Mike and his team at our Portchester HQ. The ongoing webinar series initiated by the team, the 24 hour online Marine Surveying Fest and the eCMID accreditation programs are some of the ways we have established

a digitally strong professional foothold. Also the CPD app and the initiative for making a simple website for every small surveying firm going about his surveying work at a small fee. It is amazing value and more should consider it. Long may the IIMS move digitally forward!

The experience of adapting and understanding priorities teaches one patience, at least it certainly has for me. I say this knowing that there is a wise bunch of senior surveyors around the table during board meetings, who take pride in giving their time and expertise for the good cause of uplifting our surveying profession. I have had the privilege of sharing many a long day gaining knowledge and learning from two of my many mentors on the IIMS board. Special mention must be made to one of these, namely our past president Captain Allen Brink, who has so often guided me and been steadfast in his straight-talking advice. I remain thankful to these wise men.

The UAE branch and committee have carried the President’s badge with as much pride as I have during these past two years. During the very first meeting, I was given a token of appreciation by the UAE branch committee after taking over as IIMS President. Nothing made me feel more honored than being appreciated by peers. 

We as the UAE branch were successful in keeping the traditions of our biennial conference on course and in doing so celebrated last November our 10th year as a branch, being the longest standing branch of IIMS thus far. We are grateful for all the support that as a branch we have received during those 10 years from local and international sponsors and members.

Finally, before passing on the baton, I have planned a get together by webinar to speak with the Regional Directors, Branch Chairmen, and in-country representatives who bear the torch for the IIMS in their respective regions and countries. We need more to come forward, but we surely need to hear first from the ones who have already volunteered for many years. The IIMS will continue to grow over the coming years and my parting vision is to see branches and in-country representatives on every coastline, convincing the communities who hire surveyors that there is now an organisation that follows the high professional standards that have been established in the surveying profession. As part of this, we look forward to the surveyor’s voluntary accreditation program that’s due to be rolled out soon.

Here’s wishing you all safety first and happy professional surveying. Like they aptly say from the country I come from “JAI HO”(or in English “let victory prevail” over COVID-19) 

 

Capt. Zarir Soli Irani,

President, IIMS
International Institute of Marine Surveying

Electronic Chart Display and Information System (ECDIS)

The ECDIS is considered an important milestone for shipping and within the IMO framework for E navigation defined as “the  harmonized  collection, integration,  exchange,  presentation  and analysis of marine information on board and ashore by electronic means to enhance berth to berth navigation  and  related  services  for  safety  and  security  at  sea  and  protection  of  the  marine environment.”

It is no surprise that with The ECDIS installation schedule having passed end in July 2018, most ships have thus made the transition from paper to digital navigation. Read More Electronic Chart Display and Information System (ECDIS)

MAGNETIC PARTICLE INSPECTION

We, Constellation Marine Services LLC as independent ship and marine surveyors, get nominations from our principals to carry out Magnetic Particle testing. Recently we got a nomination from one of our clients to carry out Magnetic Particle testing onboard the semi-submersible to test the welded joints/weld bevel of sea fastening. Our Naval Architect/Marine Surveyor upon in receipt of instruction, arranged to attend an inspection onboard the subject vessel at Anchorage. Read More MAGNETIC PARTICLE INSPECTION

DEMOLITION SHIP SURVEYS – WHEN ONE LEG IS IN THE GRAVEYARD

Demolition voyages surveys, leading to an issuance of a certificate of approval or sail away permission, either under own steam, or towed, are perhaps the most testing for a marine surveyor.

The challenges involved with a perceived increase in risk, compliance with regulations, commercial pressures through cash buyers, re-flagging, re-classing and approvals, pose a challenge to the surveyors acumen, knowledge and to a large extent, his integrity. Read More DEMOLITION SHIP SURVEYS – WHEN ONE LEG IS IN THE GRAVEYARD

JOINT SURVEY OF 20’ LEAKING CONTAINER AND CROSS STUFFED INTO A SOUND CONTAINER.

This is to certify that the undersigned Independent Ship and Marine Surveyors, at the request of cargo underwriter attended a joint survey with the surveyor representing from the Carriers at Container Terminal-2, Jebel Ali, Dubai, in order to attend the alleged leaking 20’container discharged from a vessel to determine the cause, nature and extent of leaking from the container.

Accordingly, a joint survey was scheduled between Constellation Marine Services on behalf of the Cargo Underwriter and Carrier’s Surveyor at Container Terminal-2, Jebel Ali Port, Dubai, UAE.

Read More JOINT SURVEY OF 20’ LEAKING CONTAINER AND CROSS STUFFED INTO A SOUND CONTAINER.

ULTRASONIC LEAK DETECTION (ULD)

Damage to cargo due to sea water ingression during marine transportation have resulted in huge loss and big claims. Losses were not limited to the commercial value of the cargo but also to the relation between the shipper-carrier-charterer-consignee.

Have you thought if the risk of these losses can be reduced?

If not, then here is how we serve you to reduce the risk of water ingression.

We Constellation Marine Service can provide the ULD Testing of the cargo hold before the vessel sails from load port with almost no time loss due to testing and provide an opportunity to identify the point of leak and assist in rectifying the leak point at no cost of time loss at load port. Read More ULTRASONIC LEAK DETECTION (ULD)

CARGO HOLD CLEANLINESS INSPECTION

We, Constellation Marine Services LLC as independent ship and marine surveyors, often get nominations from our principals to carry out Hold Cleanliness inspections. Recently we got a nomination from one of our clients to carry out Hold cleanliness Inspection on board 34778 GRT Bulk carrier and report on its fitness to load intended cargo (PRILLED/GRANULAR UREA). Our Naval Architect/Marine Surveyor upon in receipt of instruction, arranged to attend an inspection on board the subject vessel at Anchorage.

Read More CARGO HOLD CLEANLINESS INSPECTION

MARINE WARRANTY SURVEY – PROJECT AND HEAVY LIFT CARGOES

The role of a Marine Warranty Surveyor (MWS) within the gamut of handling and transportation of Project cargoes is insurmountable, but often misunderstood, sometimes perceived as an “unnecessary nuisance” by many project personnel, primarily due to their lack of knowledge of the role of MWS and its purpose. Read More MARINE WARRANTY SURVEY – PROJECT AND HEAVY LIFT CARGOES

ULD INSPECTION OF HATCH COVER FOR WATERTIGHT INTEGRITY CARRIED OUT BY THE MASTER MARINER / NAVAL ARCHITECT FROM CONSTELLATION MARINE SERVICES LLC.

We, Constellation Marine Services LLC as independent ship and marine surveyors, often get instructions from our principals to carry out Ultrasonic leak detection test of Cargo Hold hatch covers for Read More ULD INSPECTION OF HATCH COVER FOR WATERTIGHT INTEGRITY CARRIED OUT BY THE MASTER MARINER / NAVAL ARCHITECT FROM CONSTELLATION MARINE SERVICES LLC.