Chapter 7 – Cargo Tank Venting – Set B

Source: Guidelines for the Transport and Handling of Limited Amounts of Hazardous and Noxious Liquid Substances in Bulk on Offshore Support Vessels (OSV Chemical Code), Chapter 7 – Cargo Tank Venting.
Reference: imorules.com – Chapter 7, Cargo Tank Venting

Question 10 of 10

10. Gas freeing may thereafter be continued at cargo tank deck level once the flammable vapour concentration at the outlets has been reduced to what proportion of the lower flammable limit?

A) 10% B) 20% C) 30% D) 50%

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