The Australian Maritime Safety Authority (AMSA) have been working with industry on issues identified with the repeatability and reliability of the modified C.1 test prescribed by section 188.8.131.52.3 of the International Maritime Solid Bulk Cargoes Code (IMSBC Code).
AMSA have previously issued two exemptions, namely EX5450 (issued 19 December 2016) and EX5451 (issued 21 December 2016) in respect of assessing the corrosive properties of solid bulk cargoes. Both of these exemptions were valid until the 04-17 amendment to the IMSBC Code came into mandatory effect from 1 January 2019.
Issues relating to use of the C.1 test for assessing the corrosive properties of Solid Bulk Cargoes have been progressed at meetings of the sub-committee for the Carriage of Cargoes and Containers (CCC) at the International Maritime Organization (IMO). A refined Materials Hazardous only in Bulk (MHB) corrosivity (CR) test has been developed which prescribes testing of representative samples of the cargo at conditions representing their as-shipped properties. Amendments to be included in the 06-21 amendments to the IMSBC Code were finalised and agreed during CCC 5 in September 2018. These were sent to the Maritime Safety Committee (MSC) in December 2018 for that committee to issue an MSC circular. Until that circular can be formally published, allowing AMSA to permit use of it, and to allow shippers a period to transition to the contents of the circular once it is formally published, AMSA has issued two exemptions valid until the end of June 2019, to replace those previously issued as detailed below:
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For further information on these exemptions, or conducting the refined MHB (CR) corrosivity test, or for any other maritime transport compliance query please contact Davoren Environmental
 International Maritime Solid Bulk Cargoes Code. Incorporating Amendment 04-17 and Supplement, 2018 Edition.
The IMSBC Code establishes international provisions for the safe loading, trimming, carriage and discharge of solid bulk cargoes when transported by sea, ensuring compliance with the provisions of the SOLAS Convention and identifies the risks associated with such cargoes with the aim of taking measures to minimise and control them. One of the risks identified is the risk associated with liquefaction of certain cargoes. Such cargoes are identified as Group A cargoes in the IMSBC Code. Group A Cargoes are defined as cargoes which may liquefy if shipped at a moisture content in excess of their transportable moisture limit (TML). The TML of a cargo means the maximum moisture content of the cargo which is considered safe for carriage in ships.
In accordance with paragraph 4.3.3 of the IMSBC Code, when a cargo which may liquefy is carried, procedures for sampling, testing and controlling the moisture content to ensure the moisture content is less than the TML when it is on board the ship, shall be established by the shipper. A Moisture Management Plan which verifies and documents these procedures should therefore be prepared by the shipper in line with established guidelines. This plan should be provided well in advance of shipment to the Competent Authority (CA), at the port of loading. The CA will review the procedures and once verified that they are in accordance with the relevant guidelines will issue an approval for transport of that cargo. This approval is then provided to the Master of the vessel intended to be loaded.
In the latest edition of the IMSBC Code, there are some notable amendments to existing schedules which relate specifically to their Group A designation:
*Shippers of Bauxite should also note that whilst this cargo is listed as a Group C cargo in the IMSBC Code (2016 and 2018 Editions), recent work conducted by the industry Global Bauxite Working Group (GBWG) in conjunction with CAs indicate that Bauxite represents a risk caused by moisture. As such, some Bauxite cargoes should be treated as Group A cargoes.
Pending adoption of changes into the IMSBC Code, the Australian Maritime Safety Authority (AMSA) have issued approval AP5456 to allow the test and schedules adopted by CCC-4 to be applied to Bauxite when shipped from Australia in solid form in bulk. These changes will be included in a future amendment to the IMSBC Code, which is expected to enter into force on 1 January 2021. Until such time, any bauxite cargoes should be classified as Group A or Group C and are to be carried in accordance with the draft procedures specified in AP5456 and with subsection 1.3 of the IMSBC Code.
Davoren Environmental have significant experience in preparing Moisture Management Plans in accordance with IMO guidelines for shipment approval.
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For further information on how we can assist your company with preparation of Moisture Management Plans or for any other transport compliance requirements please contact Davoren Environmental email@example.com
 The IMSBC Code & Supplement, 2018 Edition was released in March 2018. The latest edition incorporates amendment 04-17 (Resolution MSC.426(98)), which may be applied from 1 January 2018 on a voluntary basis, anticipating its envisaged official entry into force on 1 January 2019.
 Guidelines for developing and approving procedures for sampling, testing and controlling the moisture content for solid bulk cargoes which may liquefy. 15 June 2015. MSC.1/Circ.1454/Rev.1. International Maritime Organization.
 Coal shall be classified as Group A and B unless classified as Group B only by a test determined by the appropriate authority or where it has particle size distribution stated in 2018 Code schedule.
Many materials produced or used in the mining and minerals processing industry are classified as hazardous according to the Globally Harmonized Classification System (GHS). The correct classification of these materials is therefore imperative to properly manage any potential health and environmental risks and ensure compliance with relevant legislative requirements, .
Davoren Environmental have significant experience working with the mining industry to conduct hazard assessments on a wide range of materials for classification against relevant transport codes. Some of the materials assessed include:
Our aim is to make the hazard assessment and classification process as simple and tailored as possible by:
1. Consulting with the client to:
a. Fully understand the material’s physical/chemical characteristics to identify the relevant hazards that apply, and consequently the applicable tests that need to be conducted; and
b. Confirming how this material will be transported to identify relevant legislation to be addressed.
2. Coordinate and manage this testing directly with laboratory;
3. Compile a comprehensive classification report based on results of 1 and 2 above which will clearly detail the hazard assessment and classification of the material against applicable transport regulations.
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For further information on how we can assist your company with transport compliance requirements please contact Davoren Environmental firstname.lastname@example.org
 ICMM, 2014. Hazard Assessment of Ores and Concentrates for Marine Transport.
 Australian Government, 2016. Hazardous Material Management: Leading Practice Sustainable Development Program for the Mining Industry.
 Australian Code for the Transport of Dangerous Goods by Road and Rail (ADG) in Australia; International Maritime Dangerous Goods (IMDG) Code for maritime transport of packaged dangerous goods, including substances, mixtures and articles; and the International Maritime Solid Bulk Cargoes (IMSBC) Code and International Convention for the Prevention of Pollution from Ships (MARPOL Annex V) for shipment of solid bulk cargoes.
The Australian Maritime Safety Authority (AMSA) has issued two recent exemptions in respect of assessing the corrosive properties of solid bulk cargoes.
AMSA issued EX5450 on the 19th of December 2016, which allows shippers of the following solid bulk cargoes
What does the exemption mean?
The exemption means that producers and shippers of the above listed cargoes may use the standard DIN 50 929 Part 3 as an alternative method to evaluate localised corrosion of these cargoes. The rate of uniform corrosion shall still be evaluated using the UN Manual of Tests and Criteria, part III, Section 37 Test C.1 and as prescribed in Section 184.108.40.206.3 in the IMSBC Code, inclusive of the 03-15 amendments. This exemption replaces previously issued EX5389 which is now revoked and was specifically for IRON ORE and IRON ORE FINES only.
EX5451 was issued on the 21st of December 2016 and allows shippers of the following solid bulk cargoes
What are the modifications?
The main change is the use of steel coupons only which are considered to be more representative of ships’ structures. Other notable amendments in the modified test are the sealing of the test container to prevent air exchange, a specified air to solids ratio and more prescriptive guidance on sample introduction and compaction within the test container.
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For further information for assessment of localised corrosion according to DIN 50 929 Part 3 (EX5450) or the modified Test C.1 (EX5451) or for any other maritime transport compliance query please contact Davoren Environmental email@example.com.
 Corrosion of metals; probability of corrosion of metallic materials when subject to corrosion from the outside; buried and underwater pipelines and structural components. September 1985.