Compressed Gas
Required Approval Process
Approval must be obtained to purchase the following hazardous gases, in cylinder sizes larger than a lecture bottle (size LB): carbon monoxide, flammable gases, corrosive gases, liquid oxygen, oxidizers (i.e. nitrous oxide, oxygen > 25%), hydrides (i.e. arsine, disilane, diborane, germane, phosphine, silane), and toxic and highly toxic gases per NFPA 55.
The following departments are exempt due to restrictions and audits through separate programs: Lurie Nanofabrication Facility (LNF), B&F Facilities and Operations, Hospitals and off-site clinics, Unit of Laboratory Animal Medicine (ULAM) and School of Dentistry patient clinics.
To purchase any of the restricted gases, departments must complete a Chemical Requisition Form by clicking the “+Add” button on the Mi Safety Portal (MISP) Chemical Requisition page. Environment, Health & Safety (EHS) will approve requisitions within MISP and email the approval to the requester and noted supplier. The purchasing unit will provide the MISP chemical requisition number to the supplier as the approval number. Contact EHS at (734) 647-1143 or visit Compressed Gas on their website for additional information. See the Procurement Services website for the current university gas contracted suppliers.
When logged into MISP, the link will open directly. If not logged into MISP, you will be prompted to login first, then click the link a second time to open the form.
Standard Operating Procedures, Guidelines, and Manuals
NOTE: Each laboratory should develop Standard Operating Procedures when using a compressed gas for research. There are also limitations on the number and volume of cylinders as well as additional requirements that may apply depending on the specific use and type of materials involved.
