Onfined Space Entry Worker and Would-be Rescuer Asphyxiated

I will attach instructions and case study paper.

Review i??the i??case i??study i??material i??provided i??here, i??which i??deals i??with i??the i??Valero Refinery i??Asphyxiation i?? Incident i??presented i??by i??the i??Chemical i??Safety i??Board