Subscribe to our Mailing Lists (It's free!)
Sunday, September 24, 2023
SAFETY4SEA
  • Home
  • Safety
    • All
    • Accidents
    • Alerts
    • Loss Prevention
    • Maritime Health
    • Regulation
    • Safety
    • Seafarers
    • Security
    Explosion leads to crew evacuation in the Romanian port of Sulina

    Explosion leads to crew evacuation in the Romanian port of Sulina

    NTSB Investigation: Grounding of tugboat CC Portland

    NTSB Investigation: Grounding of tugboat CC Portland

    BMA Investigation: Seafarer suffers fatal injuries during mooring

    BMA Investigation: Seafarer suffers fatal injuries during mooring

    Gard: How use of mooring lines affects crew’s life

    Gard: How use of mooring lines affects crew’s life

  • SEAFiT
    • All
    • Intellectual
    • Mental
    • Physical
    • Social
    • Spiritual
    Practicing gratitude can change your life

    Practicing gratitude can change your life

    Always do what your gut tells you: Keep it healthy

    Always do what your gut tells you: Keep it healthy

    Book Review: A role model for ship managers

    Book Review: How we perceive and deal with luck in life and business

    social media detox

    Stay SEAFiT: Time for social media detox

  • Green
    • All
    • Arctic
    • Ballast
    • Emissions
    • Fuels
    • Green Shipping
    • Pollution
    • Ship Recycling
    • Technology
    symphony of the seas

    Royal Caribbean Group conducts 12 weeks of biofuel testing

    Watch: How shipping helps Apple reduce 95% of transport emissions

    Watch: How shipping helps Apple reduce 95% of transport emissions

    Samsung Heavy Industries creates world’s first laser, high-speed welding robot

    Samsung Heavy Industries creates world’s first laser, high-speed welding robot

    California launches international methane-reduction initiative

    California launches international methane-reduction initiative

  • Smart
    • All
    • Connectivity
    • Cyber Security
    • E-navigation
    • Energy Efficiency
    • Maritime Software
    • Smart

    K Line, TIS, Miotsukushi to develop AI-powered automatic draft survey application

    Hapag-Lloyd focuses on enhanced connectivity onboard

    Hapag-Lloyd focuses on enhanced connectivity onboard

    BV eyes data-driven decarbonization solutions

    BV eyes data-driven decarbonization solutions

    Delivering for the seafarer of tomorrow

    IGP&I: Electronic Trade Documents Act comes into force in the UK

  • Risk
    • All
    • CIC
    • Detentions
    • Fines
    • PSC Case Studies
    • PSC Focus
    • Vetting
    ClassNK amends its rules on construction of steel ships

    Liberia: How to comply with PSC focus on firefighting and clean machinery spaces

    orange county oil spill fines

    Crude oil tanker to pay 88 crores for damaging Haldia oil jetty

    China conducts ballast water inspections to vessels arriving from Japan

    China conducts ballast water inspections to vessels arriving from Japan

    M/V “HAKSA” refused access to the Paris MoU

    M/V “HAKSA” refused access to the Paris MoU

  • Others
    • All
    • Diversity in shipping
    • Maritime Knowledge
    • Offshore
    • Ports
    • Reports
    • Shipping
    • Sustainability
    • Videos
    Baltic Exchange: Maritime market highlights 2-8 April

    Baltic Exchange: Maritime market highlights 18 – 22 September

    offshore wind installation vessels

    Allianz: Prominent risks in the offshore wind industry

    Singapore is the top maritime centre for 10 consecutive years

    Singapore is the top maritime centre for 10 consecutive years

    Global bunker supplier complies with carbon reduction criteria

    Global bunker supplier complies with carbon reduction criteria

  • Columns
    Seafarer Stories: Capt. Cristian Bacanu, Master

    Seafarer Stories: Capt. Cristian Bacanu, Master

    Wellness Corner: Tom O’Hare, Mission to Seafarers

    Wellness Corner: Tom O’Hare, Mission to Seafarers

    AMSA: Seafarers must have a voice in shaping shipping’s future

    MNWB: Seafarers’ needs are no different to anyone else’s needs

    Trending Tags

    • Book Review
    • Career Paths
    • Industry Voices
    • Interviews
    • Maripedia
    • Maritime History
    • Resilience
    • Seafarers Stories
    • SeaSense
    • Wellness Corner
  • Events
  • Plus
No Result
View All Result
  • Home
  • Safety
    • All
    • Accidents
    • Alerts
    • Loss Prevention
    • Maritime Health
    • Regulation
    • Safety
    • Seafarers
    • Security
    Explosion leads to crew evacuation in the Romanian port of Sulina

    Explosion leads to crew evacuation in the Romanian port of Sulina

    NTSB Investigation: Grounding of tugboat CC Portland

    NTSB Investigation: Grounding of tugboat CC Portland

    BMA Investigation: Seafarer suffers fatal injuries during mooring

    BMA Investigation: Seafarer suffers fatal injuries during mooring

    Gard: How use of mooring lines affects crew’s life

    Gard: How use of mooring lines affects crew’s life

  • SEAFiT
    • All
    • Intellectual
    • Mental
    • Physical
    • Social
    • Spiritual
    Practicing gratitude can change your life

    Practicing gratitude can change your life

    Always do what your gut tells you: Keep it healthy

    Always do what your gut tells you: Keep it healthy

    Book Review: A role model for ship managers

    Book Review: How we perceive and deal with luck in life and business

    social media detox

    Stay SEAFiT: Time for social media detox

  • Green
    • All
    • Arctic
    • Ballast
    • Emissions
    • Fuels
    • Green Shipping
    • Pollution
    • Ship Recycling
    • Technology
    symphony of the seas

    Royal Caribbean Group conducts 12 weeks of biofuel testing

    Watch: How shipping helps Apple reduce 95% of transport emissions

    Watch: How shipping helps Apple reduce 95% of transport emissions

    Samsung Heavy Industries creates world’s first laser, high-speed welding robot

    Samsung Heavy Industries creates world’s first laser, high-speed welding robot

    California launches international methane-reduction initiative

    California launches international methane-reduction initiative

  • Smart
    • All
    • Connectivity
    • Cyber Security
    • E-navigation
    • Energy Efficiency
    • Maritime Software
    • Smart

    K Line, TIS, Miotsukushi to develop AI-powered automatic draft survey application

    Hapag-Lloyd focuses on enhanced connectivity onboard

    Hapag-Lloyd focuses on enhanced connectivity onboard

    BV eyes data-driven decarbonization solutions

    BV eyes data-driven decarbonization solutions

    Delivering for the seafarer of tomorrow

    IGP&I: Electronic Trade Documents Act comes into force in the UK

  • Risk
    • All
    • CIC
    • Detentions
    • Fines
    • PSC Case Studies
    • PSC Focus
    • Vetting
    ClassNK amends its rules on construction of steel ships

    Liberia: How to comply with PSC focus on firefighting and clean machinery spaces

    orange county oil spill fines

    Crude oil tanker to pay 88 crores for damaging Haldia oil jetty

    China conducts ballast water inspections to vessels arriving from Japan

    China conducts ballast water inspections to vessels arriving from Japan

    M/V “HAKSA” refused access to the Paris MoU

    M/V “HAKSA” refused access to the Paris MoU

  • Others
    • All
    • Diversity in shipping
    • Maritime Knowledge
    • Offshore
    • Ports
    • Reports
    • Shipping
    • Sustainability
    • Videos
    Baltic Exchange: Maritime market highlights 2-8 April

    Baltic Exchange: Maritime market highlights 18 – 22 September

    offshore wind installation vessels

    Allianz: Prominent risks in the offshore wind industry

    Singapore is the top maritime centre for 10 consecutive years

    Singapore is the top maritime centre for 10 consecutive years

    Global bunker supplier complies with carbon reduction criteria

    Global bunker supplier complies with carbon reduction criteria

  • Columns
    Seafarer Stories: Capt. Cristian Bacanu, Master

    Seafarer Stories: Capt. Cristian Bacanu, Master

    Wellness Corner: Tom O’Hare, Mission to Seafarers

    Wellness Corner: Tom O’Hare, Mission to Seafarers

    AMSA: Seafarers must have a voice in shaping shipping’s future

    MNWB: Seafarers’ needs are no different to anyone else’s needs

    Trending Tags

    • Book Review
    • Career Paths
    • Industry Voices
    • Interviews
    • Maripedia
    • Maritime History
    • Resilience
    • Seafarers Stories
    • SeaSense
    • Wellness Corner
  • Events
  • Plus
No Result
View All Result
SAFETY4SEA

Britannia P&I: Suggested measures in preventing off-spec claims of MEG cargo

by The Editorial Team
September 18, 2023
in Loss Prevention
The Baltic Exchange

Credit: Shutterstock Image hereabove is being used for illustration purposes only

FacebookTwitterEmailLinkedin

Britannia’s P&I Club correspondent in China, Oasis P&I Services Company Limited, has prepared a circular detailing suggested measures in preventing off-spec claims of MEG (Mono Ethylene Glycol) cargo due to excessive aldehyde content.

Main cause of off-spec claims of MEG cargo

Aldehydes (e.g. formaldehyde and acetaldehyde) and acetals are by-products of MEG cargo generated during the production process. However, they may be difficult to be removed completely before loading due to instability in the production process or failure in process control.

Besides, usually aldehydes and/or acetals are not evenly distributed in the load port shore tank due to low osmotic pressure caused by their low concentration and large capacity of ship’s tanks/shore tanks, among others. It is not uncommon that samples taken from the same cargo tank at different time give different test results and the MEG cargo which was tested off-spec in cargo tanks is subsequently tested on-spec in shore tanks after discharge.

RelatedNews

Cargo ships arrive in Ukrainian port following Russia’s exit from grain deal

Mexican cargo ship runs aground at the Masatlán dock

Two typical off-spec scenarios and how they developed

#1 One typical scenario is that only aldehydes are produced during the cargo production process. Samples passed the test before loading but cargo turn out to be off-spec at the discharging port.

As aldehydes are not distributed evenly in the shore tank, the cargo surveyor could have taken samples of sound cargo from shore storage tank by chance. The cargo would then be loaded onboard after passing the sample test, which indicates the cargo being loaded is sound cargo.

During a long voyage, the cargo would experience rolling and pitching in the cargo tanks and aldehydes would be distributed more evenly during this period, so that samples taken at discharging port may fail in passing the test due to off-spec of aldehydes content.

#2 Another typical scenario is that aldehydes have been completely removed before loading on board, but could still be found at discharging port and cargo turn out to be off-spec.

Aldehydes and acetals can be simultaneously produced during the production of MEG. Acetals are a sort of relatively unstable chemical substance with tendency to convert into aldehydes if hydrolysis condition is satisfied.

The test method “ASTM E 2313” is commonly used by manufacturer in determining aldehydes content in MEG cargo. However, it could not detect acetals content. If aldehydes are detected, it would be completely removed by way of “de-aldehyde resin” before shipment by manufacturer, but acetals cannot be removed in the same way.

After being loaded on board, acetals would gradually convert into aldehydes during the voyage due to its unstable nature, which results in off-specification of aldehydes content upon arrival at discharging port.

Suggestions to ship owners

#1 Given the above, apart from shore tank samples (usually running samples) delivered by the cargo surveyor at load port, we suggest additional separate samples are taken jointly with the shipper’s appointed surveyor from upper, middle, and lower levels of shore tanks before commencement of loading operation. This would more accurately reflect the actual condition of the cargo to be loaded.

#2 In addition to the routine cargo samples drawn at the ship’s manifold at the beginning of loading operation, additional samples are suggested to be drawn from ship’s manifold at intervals of 0.5 -1 hour throughout the whole loading process. The sampling time shall be accurately tagged on each sample by an independent surveyor.

#3 If there is any doubt about the condition of the cargo, please consult an experienced chemist as soon as possible.

Tags: Britannia Clubcargocircular
Previous Post

Port of Aberdeen to make major investment in shore power

Next Post

IUMI: Insurance provides strength and stability in turbulent seas

Related News

Algoma orders methanol-ready product tankers
Loss Prevention

Britannia P&I: Tips for safe carriage of flexitanks in containers

September 12, 2023
UKMTO: Irregular activity near Gulf of Aden
Alerts

Prohibition of ships double banking in UAE waters without permit

September 8, 2023
Wärtsilä to supply systems for new very large Ethane Carriers in China
Regulation

Britannia P&I: SOLAS amendments coming into force in 2024

September 6, 2023
The Baltic Exchange
Alerts

Japan P&I Club: Cargo shortage at Egyptian ports is among the most common claims

September 5, 2023
IUMI presents technical information and the risks of electric vehicles
Safety

IUMI presents technical information and the risks of electric vehicles

September 5, 2023
Skuld: Bananas are sensitive cargoes
Loss Prevention

Skuld: Bananas are sensitive cargoes

August 24, 2023

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Recommended

NATO phonetic alphabet

Do you know what NATO phonetic alphabet is?

November 24, 2020
singapore border measures

Do you know what GT and DWT measure in a ship?

November 10, 2021
MARITIME EVENTS

Explore

  • Safety
  • SEAFiT
  • Green
  • Smart
  • Risk
  • Others
  • SAFETY4SEA Events
  • SAFETY4SEA Plus Subscription

Useful Links

  • About
  • Disclaimer
  • Editorial Policies
  • Advertising
  • Content Marketing
  • Contact

© 2021 SAFETY4SEA

No Result
View All Result
  • Safety
    • Accidents
    • Alerts
    • Loss Prevention
    • Maritime Health
    • Regulation
    • Safety
    • Seafarers
    • Security
  • SEAFiT
    • Intellectual
    • Mental
    • Physical
    • Social
    • Spiritual
  • Green
    • Arctic
    • Ballast
    • Emissions
    • Fuels
    • Green Shipping
    • Pollution
    • Ship Recycling
    • Technology
  • Smart
    • Connectivity
    • Cyber Security
    • E-navigation
    • Energy Efficiency
    • Maritime Software
    • Smart
  • Risk
    • CIC
    • Detentions
    • Fines
    • PSC Case Studies
    • PSC Focus
    • Vetting
  • Others
    • Diversity in shipping
    • Maritime Knowledge
    • Offshore
    • Ports
    • Reports
    • Shipping
    • Sustainability
    • Videos
  • Columns
    • Opinions
    • Book Review
    • Career Paths
    • Industry Voices
    • Interviews
    • Maripedia
    • Maritime History
    • Resilience
    • Seafarers Stories
    • SeaSense
    • Wellness Corner
  • SAFETY4SEA Events
  • SAFETY4SEA Plus Subscription

© 2021 SAFETY4SEA

This website uses cookies. By continuing to use this website you are giving consent to cookies being used. Visit our Disclaimer.