CMC Regulatory Compliance and Standards 3

Question 1

Which NFPA standard is the primary reference document for controlling gas hazards on vessels and is directly referenced by OSHA's shipyard employment standards?

Accepted Answer

NFPA 306

Answer

NFPA 306, 'Standard for the Control of Gas Hazards on Vessels,' is the primary industry standard for marine chemist operations and is incorporated by reference in OSHA 29 CFR 1915.

Question 2

Under 46 CFR 35.01-15, a Marine Chemist certificate for hot work on a vessel tank is valid for a maximum of how long before re-inspection is required?

Accepted Answer

24 hours

Answer

46 CFR 35.01-15 specifies that a hot work certificate is valid for one calendar day (24 hours) and must be renewed by re-inspection if work continues.

Question 3

A Marine Chemist inspecting a tank that previously carried crude oil finds an LEL reading of 8%. Which certificate designation is correct under NFPA 306?

Accepted Answer

'Not Safe for Hot Work — Safe for Men'

Answer

At 8% LEL, the space is below the 10% LEL threshold for 'Gas Free' hot work status, so it may be 'Safe for Men' but not 'Safe for Hot Work' under NFPA 306.

Question 4

Under OSHA 29 CFR 1915.51, respiratory protection requirements for shipyard workers are governed by which additional OSHA standard?

Accepted Answer

29 CFR 1910.134

Answer

OSHA 29 CFR 1915.51 requires respiratory protection programs to comply with 29 CFR 1910.134, the general industry respiratory protection standard.

Question 5

Which international convention establishes safety requirements for enclosed spaces aboard ships that marine chemists operating internationally must be aware of?

Accepted Answer

IMO Resolution A.1050(27)

Answer

IMO Resolution A.1050(27), 'Revised Recommendations for Entering Enclosed Spaces Aboard Ships,' provides international guidance aligned with marine chemist practice.

(CMC) Certified Marine Chemist Practice Test

(CMC) Certified Marine Chemist Practice Test

CMC Regulatory Compliance and Standards 3