AAMI ST 15883-3 pdf free download

AAMI ST 15883-3 pdf free download.Washer-disinfectors一Part 3: Requirements and tests for washer- disinfectors employing thermal disinfection for human waste containers.
5.3 Venting, draining and purging
5.3.1 For free standing and single door WDs the drainage outlet shall be placed towards the rear of the
WD.
This should be done in such a manner that it is possible to make connection with a drainage outlet in any position within a horizontal angle of 1800.
5.3.2 When tested in accordance with 6.2, the water seal in the trap between the chamber and the drain shall not be broken during five consecutive operating cycles.
NOTE When it is not practicable to vent to the outside atmosphere, a condenser can be used for indirect venting. This can produce a backpressure which, if excessive, will break the water seal between the chamber and the drain. The test is intended to verify that this does not occur.
5.3.3 After the completion of the washing stage of the operating cycle, the trap shall be clear of soil and waste.
Compliance shall be tested in accordance with 6.3 and 6.4.
After each of five tests carried out in accordance with 6.3 there shall be no test spheres retained within the chamber or trap.
After each of five tests carried out in accordance with 6.4 there shall be no toilet tissues retained within the chamber and the trap shall be clear.
5.4 Water quality
The tests required by ISO ANSI/AAMI ST15883-1, 5.23.3 (see also ISO 15883 1 ANSI/AAMI ST15883-1, 6.4.2.2) shall be limited to determination of hardness (expressed as millimole per liter (mmol/l) of CaCO3) when the water is from a potable supply.
6.3 Test for flushing of non-absorbent materials
One non-absorbent test sphere shall be used for each bedpan that the WD is intended to process in a single operating cycle. Drop the non-absorbent test spheres [relative density of 1.075 to 1.080, diameter (43 ± 0.5) mm] into the otherwise empty chamber, close the door and start the cycle. At the end of the cleaning (washing) stage and before the disinfection stage, stop the machine and examine the chamber and the trap for retained spheres.
Repeat the test four more times.
6.4 Test for flushing of absorbent material (toilet tissue)
Twelve sheets of toilet tissue in accordance with Annex B shall be used for each bedpan that the WD is intended to process in a single operating cycle. Crumple the required number of sheets of toilet tissue and drop into the chamber of the WD containing the maximum intended load of bedpans. Close the door and start the cycle. At the end of the cleaning (washing) stage, interrupt the operating cycle and record the number of tissue sheets remaining in the chamber and load; inspect the trap and record the number of tissues retained in the trap.
Repeat the test a further four times.
6.5 Test for loadinglemptying of containers
6.5.1 Automatic emptying
For WDs complying with 4.3.2, each type of container which the WD is designed to process shall be tested. Fill each container with water to no less than 75 % of its brimful capacity and locate it in the load carrier in accordance with the manufacturer’s instructions. Load the chamber to the maximum recommended capacity. Close the door. Observe whether any liquid has been spilled or splashed outside theWD.
6.5.2 Manual emptying
For WDs complying with 4.3.3, each type of container which the WD is designed to process shall be tested. Fill each container with water to not less than 75 % of its brimful capacity and empty it into the WD and locate it in the load carrier in accordance with the manufacturer’s instructions. Load the chamber to the maximum recommended capacity. Close the door. Observe whether any liquid has been spilled or splashed outside the WD.
AAMI ST 15883-3 pdf download.