The International Group and CINS have issued revised joint industry guidance on the carriage of Calcium Hypochlorite by sea (first publication in May 2016) that now takes account of the package limit of 100lb drums under US measurement as well as the previously stated package limit of 45kg net weight.

This new version 2.0 of the Guidelines replaces the version published in May 2016.

These Guidelines for the carriage of calcium hypochlorite in containers have been prepared jointly by Working Groups representing CINS (the Cargo Incident Network System) and the International Group of P&I Clubs.

t is estimated that global production of calcium hypochlorite for domestic and export markets is about 400,000 tonnes per year.

The practices set out in this document are intended to allow the carriage of calcium hypochlorite under controlled circumstances to ensure that it is properly declared, packaged and carried. The practices are also intended to encourage carriers to have the confidence to accept the commodity for shipment under an acceptable method.

Calcium hypochlorite or calcium hypochlorite mixtures shall be transported in compliance with the requirements set out in the International Maritime Dangerous Goods Code (IMDG Code)1 . However, the practices set out below include selected provisions from the IMDG Code plus additional precautions to be consistent with the science basis established in 1999 by consulting scientists J H Burgoyne and Partners to minimise the risk.

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