Standardized Testing | Safety | Pumping Rates | Pumping Rate Methods
Evacuation Methods | Evacuation Test Form | Transfer Methods | Evacuation Method Results | Test Photos

1. Publication of voltage and amps will be at maximum running amps with 100 feet of cable at +/- 5% of the rated line voltage.
2. Width of spray patterns will be measured at the outer edge of the heavy water impact area in zero wind conditions, nominally.
3. Height of sprays to be measured with a mast or transit at the lowest steady column of water.
4. Pumping Rates are to be measured through a unit’s nozzle, not through an open pump. Actual flow of each nozzle to be measured. Evacuation, change in weight of water, and similar methods will be used to measure pumping rates.
5. Sphere of influence, circulation, and non-measurable terms will not be used in specifications.
6. For oxygen transfer rates, manufacturers will measure whichever unit they feel gives them the best results and then may extrapolate data from that testing to their other models/nozzles, only if it is clearly stated that the data is extrapolated and not measured and that other models may or may not perform as the unit tested. Both a high or low horsepower unit must be measured to extrapolate the data.
7. Expression of oxygen transfer rates must incorporate the operating horsepower of the unit. This term is more commonly referred to as S.O.T.R. or Standard Oxygen Transfer Rate and uses a motors amperage draws in it methodology.
8. Horsepower will be expressed as Rated Horsepower and Operating Horsepower. The formula we will use to figure Operating HP is HP=Volts x Amp x Power Factor divided by 746 (watts).
9. ASCE testing methods will be used to adopt to complete oxygen transfer testing.
10. Safety testing is meant to include the entire product as a package i.e. motor, pump, power panel and power cable. Component approvals are not recognized.  NRTL testing bodys are acceptable.
11. Unified testing bodies for the ASCE S.O.T.R. testing will be approved by the division. At the current time St. Anthony’s Falls labs is approved for volumetric testing and S.O.T.R. testing and GSEE is approved for S.O.T.R. testing.
12. Any test results published which are derived from other testing methods or other agencies should be identified as such in the member’s literature.