Cylinder Retesting Resources
DOT & PHMSA
The Department of Transportation, Pipeline and Hazardous Materials Safety Administration sets the regulations for cylinder testing.
Most SCBA and Storage/cascade cylinders are regulated by a special permit number. These numbers indicate the test and life cycle allowed per exemption. Most composite cylinders have a 15 year life.
Code of Federal Regulations
All DOT Cylinders are required to be hydrostatically retested per the Code of Federal Regulations (49 CFR). The increment is typically every 5 years, with some exceptions.
Standard SCBA Cylinders (steel, aluminum or composite), DOT storage/cascade, SCUBA and Oxygen all have a 5 year hydrotest test cycle.
ISO Cylinder Retesting
We are proud to hold the original special permit to be able to hydrostatically test common ISO (International Standard for Organization) Storage/Cascade Cylinders.
Typically, these cylinders were required to be sent out to be ultrasonically tested, but we are now able to hydrostatically test these directly at your location.
Backflow Preventer Resources
Backflow
Preventer FAQ
Wisconsin backflow preventers are required to be tested and registered with the State annually. Michigan backflow preventers are required to be tested and registered every 3 years.
Click below to view Questions and Answers About Cross-Connection Control via the American Backflow Prevention Association.
Michigan
Requirements
Department of Environment, Great Lakes, and Energy
"Michigan Safe Drinking Water Act Administrative Rules (SDWA) requires each water supply to implement a cross connection prevention program including inspections, testing, recordkeeping, and education."