Using Dispersants in Singapore Port Waters | Maritime & Port Authority of Singapore (MPA)

Using Dispersants in Singapore Port Waters | Maritime & Port Authority of Singapore (MPA)
Share:
Share to LinkedIn
Share to Facebook
Share to Twitter
Print this page
Share to Email
Using Dispersants in Singapore Port Waters
Dispersants used in Singapore waters have to be tested in the approved testing facilities and meet the specifications as listed below. Approval will need to be sought from MPA for those tested dispersants which comply with the
specifications before they can be used in Singapore waters.
Under the Prevention of Pollution of the Sea (Oil Pollution Preparedness, Response and Co-operation) Regulations, no person shall use any dispersant which does not comply with the specifications set out below for the purpose of
eliminating or reducing any oil pollution in the port waters.
The
flash point of the dispersant shall not be less than 65°C (150°F)
in accordance with the test prescribed by the Institute of Petroleum.
The
dispersion capacity of the dispersant shall not be more than 1 part
of dispersant to 1 part of marine fuel oil of viscosity not less than
300 seconds (Redwood 1) at 50°C (122°F) in accordance with test No.
PSA/CD/II as specified by the Authority.
The
biodegradability of the surface active agent shall not be less than
90°on the average of the results of the seventh and eighth day from
the commencement of the test at 37°C (99°F) in accordance with test
No. MPA/MV/III as specified by the Authority.
The
toxicity of the dispersant using glass fish (Chanda gymnocephalus) as
a standard test organism shall be as follows:
The
mixture of the dispersant and the standard marine fuel oil (MFO
V1100/1200) in the ratio of 1:1 shall have a 96-hour LC 50 value of
not less than 100 mg per litre as measured by the method of the
Singapore Food Agency (formerly Agri-Food and Veterinary Authority).
The
dispersant shall not contain aromatic hydrocarbons and chlorinated
hydrocarbons in concentrations greater than:
Total
aromatic hydrocarbons - 3%
Total
chlorinated hydrocarbons - 0.05 mg per litre.
To
obtain approval for dispersants to be used in the port, a sample of
the product must be sent to an MPA appointed laboratory in Singapore
for testing.
Only
those dispersants that have been found to comply with these
specifications are allowed for use in the port waters. This is to
ensure the safety of all port users and protection of the marine
environment.
The
list of approved dispersants can be found
Dispersants Approved for Use in Singapore Waters
.
List of Relevant Documents
Oil Pollution Preparedness Response and Cooperation Regulations (.pdf, 254 KB)
Dispersants approved for use in Singapore Waters