Bowie & Dick Test; Normal Operation; Available Sterilization Programmes - Satelec ACTEON Quaz Class B Benutzerhandbuch

p0 Room atmospheric pressure
p1 Lowest vacuum level
p2 Pressure after 300 s idle.
p3 Pressure after 600 s idle.
t0 Beginning of the test
t1 Time to reach the lowest vacuum level
t2 First vacuum test
t3 Second vacuum test
TEST CORRECT IF: P3 - P2 < 13 mbar
4.4.2. BOWIE & DICK TEST
Place a standard test package in the sterilisation chamber to carry out the BOWIE & DICK
test. This package has several sheets of sponge paper with a strip in the centre that
changes colour according to the parameters that the machine reaches during the
sterilisation process.
When the test package is placed in the machine, close the door and press the 'B & D' icon
and the BOWIE & DICK test will start automatically.
The cycle has the same parameters as the sterilisation cycles at 134ºC except for the
5. OPERATION
5.1. AVAILABLE STERILISATION PROGRAMMES
The QUAZ autoclave has three 'B' class sterilisation cycles in accordance with standard EN 13060:2004+A2:2010 where all solid or porous products and hollow objects in a single or double
packaging can be sterilised.
NOTE: The length of the cycle and the amount of water used depend on the load and the initial temperature level of the autoclave. The following values have been calculated for
the maximum load and with the autoclave at room temperature.
TYPE OF CYCLE
Reference temperature of the cycle
Pressure
Length of the sterilisation stage
Length of the drying stage
MATERIAL TO STERILISE
Compact solid products
Small porous objects
Object with hollow objects type A
Object with hollow objects type B
No wrapping: single/double packaging
QUAZ 17 l
Total length of the emptying - filling cycle
Maximum use of distilled water
Maximum load: Solid/Porous
QUAZ 24 l
Total length of the emptying - filling cycle
Maximum use of distilled water
Solid
Porous
Maximum load: Solid/Porous
The 'B' class cycles sterilise and dry any kind of object: Solid, porous, hollow objects type A, plastic, rubber, etc., with single or double packaging. However:
- Please follow the manufacturer's recommendations
- For each programme, take into account the established maximum mass of the objects that are going to be sterilised, checked and approved by the manufacturer.
The Vacuum test starts with the vacuum pump until it reaches 100 mbars. Then the vacuum
pump switches off and checks the pressure P1.
The autoclave remains in the position for 5 minutes (stabilisation of the vacuum value) until
it checks the pressure value P2.
The autoclave continues with the pressure system closed and it waits 10 minutes until it
checks the pressure value P3.
After the last 10 minutes the pressure is restored in the sterilisation chamber.
The value of the loss equals 'Pressure check 3' minus 'Pressure check 2'.
The display shows if the result of the test is correct or incorrect and the loss that has been
obtained.
If t3-t2 is greater than ±3ºC, the summary of the cycle will only indicate the loss.
It's recommended to start vacuum test at ambient temperature with the sterilizer cold.
sterilisation stage which lasts 3.5 minutes and the drying stage which lasts 4 minutes.
IMPORTANT:
- The BOWIE & DICK test checks the penetration of steam in the sterilisation chamber.
- When the cycle has finished the QUAZ autoclave saves and displays on the screen if
the cycle is correct or not, ANALYSING ONLY THE STERILISATION PARAMETERS THAT THE
MACHINE HAS REACHED. The user should check the result of the cycle according to the
colour of the strip, using the package manufacturer's recommendations as a reference
for the test.
STERILISATION CYCLES
'B' CYCLE 'B' CYCLE
134º Standard 134º Prion
135 ºC 135 ºC
2,10 bar 2,10 bar
4' 18'
15' 15'
YES YES
YES YES
YES YES
YES YES
YES YES
32'-48' 46'-62'
500 cl 640 cl
4,5/1,5 kg 4,5/1,5 kg
40'-60' 55'-75'
590 cl 720 cl
700 cl 820 cl
6,0/2,0 kg 6,0/2,0 kg
TEST CYCLE
'B' CYCLE
Bowie & Dick
121º Standard
122 ºC 135 ºC
1,10 bar 2,10 bar
15' 3' 30"
15' 4'
YES
YES
YES empty
YES
YES
40'-52' 28'-30'
525 cl 300 cl
4,5/1,5 kg
45'-65' 28'-36'
670 cl
650 cl 360 cl
6,0/2,0 kg
15