APPENDIX A

Location of Fixed Area Detectors

Each detector station can support two sensors. The sensors should be mounted 6–12 in above the deck. Detector areas and number and position of fixed sensors follow:

Core Processing Area

Sensor 1: Below the sampling table next to the working half storage rack.
Sensor 2: Below the description table.

Core Receiving Platform

Sensor 1: Mount on handrail at the forward end of the platform next to the outdoor storage rack.
Sensor 2: Mount on the handrail at the midpoint of the platform.

Core Entry

Sensor 1: Mount at the base of the aluminum core rack.
Sensor 2: Mount beneath the splitting table.

Core Catcher Bench

Sensor 1: Mount on the handrail at the aft end of the core receiving platform.
Sensor 2: Mount beneath core catcher bench.

Lower 'tween Deck Landing

Sensor 1: Mount inside the lower 'tween core refrigerator at the base of the unistrut shelving.

Hold Deck Landing

Sensor 1: Mount inside the hold core refrigerator at the base of the unistrut shelving.
Sensor 2: Mount at the bottom of the stairwell.

Fresh-Air Intake Plenum

Sensor 1: Mount inside the fresh air intake plenum where the air enters the A/C on the main deck.
Sensor 2: Mounted on the forward end of the core receiving platform.

Rig Floor

Sensor 1: Mount at the base of forward starboard tugger.
Sensor 2: Mount at the base of aft starboard tugger.

Warning Signs

Post warning signs at the entrance(s) to potential H2S areas during operations at sites where H2S may be encountered. Use the following text on the warning signs:

WARNING--HAZARDOUS AREA

HYDROGEN SULFIDE H2S

UNAUTHORIZED PERSONNEL KEEP OUT

NO SMOKING

Warning signs are to be posted in the following areas:

Wind Direction Indicators

Wind socks are mounted on the following areas:

Bright color streamers are located in the following areas:

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