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F1. Core on splitting table.

Tables T1-T4

T1. Hydrogen sulfide operating conditions.

T2. Hydrogen sulfide alarm locations.

T3. Breathing apparatus required before opening drill string.

T4. Breathing apparatus required before removing core catcher.

Appendix Tables AT1-AT3

AT1. Effects of hydrogen sulfide.

AT2. Chemical vapor toxicity.

AT3. Effects of sulfur dioxide.