Signs: CAUTION: H2S POISONOUS GAS MAY BE PRESENT NO OPEN FLAMES WEAR NECESSARY PROTECTIVE EQUIPMENT AND PROCEED WITH CAUTION, Each

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CAUTION: H2S POISONOUS GAS MAY BE PRESENT—NO OPEN FLAMES, WEAR NECESSARY PROTECTIVE EQUIPMENT AND PROCEED WITH CAUTION signs remind employees about areas that require a hardhat, ear protection, face shields or eye protection.