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Statutory Documents - IMO Publications and Documents - Circulars - Maritime Safety Committee - MSC.1/Circular.1216 – Revised Recommendations on the Safe Transport of Dangerous Cargoes and Related Activities in Port Areas – (26 February 2007) - Annex - Revised Recommendations on the Safe Transport of Dangerous Cargoes and Related Activities in Port Areas - Appendix 1 - Glossary of Terminology of Relevance to the Handling of Dangerous Cargoes - O

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Parent topic: Appendix 1 - Glossary of Terminology of Relevance to the Handling of Dangerous Cargoes

Organic acids

 Organic compound which contains one or more COOH-group (radical).

Organometallic compound (substance)

 A compound comprised of a metal attached directly to the carbon.

ortho- (o-)

 A prefix meaning “straight ahead”; meta- means “beyond”; para- means “opposite”. These prefixes are used in organic chemistry in naming disubstitution products derived from benzene in which the substituent atoms or radicals are located in certain definite positions on the benzene ring.

Illustration: A and B are different radicals

Oxygen depleted atmosphere

 The oxygen content in the atmosphere is 19% or less.

Oxygen enriched atmosphere

 The oxygen content in the atmosphere is 23% or more.

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