Cylinders Flashcards
1
Q
Cylinder material
A
Steel - Chromium or molybdenum alloy
2
Q
Cylinder testing
A
Visual inspection (internal/external) Leaks, deformation Pressure and impact, tensile tests
3
Q
Cylinder sizes
A
Size A on machine
Oxygen 680L 13700kpa
Nitrous Oxide 1800L 4400kpa
4
Q
Cylinder storage
A
Ventilated area Cool, clean, dry large size vertically small size horizontally separate flammable and combustible gases medical and non-medical separate
5
Q
Cylinder colours
A
Oxygen - white/white 2/5 Nitrous Oxide - white/ ultramarine 3/5 Air - Black and white 1/5 Carbon Dioxide - white/ grey/green 1/6 Nitrogen - black 1/4 Entonox - ultramarine and white 7 single centred pin
6
Q
Cylinder label
A
Name and symbol of gas Volume and pressure Warnings (in diamond) Substance batch number and ID number Max cylinder pressure Storage/handling instructions Cylinder size code Product license number Cylinder contents in L Directions for use and information on storage and handling
7
Q
Cylinder markings
A
ID number owners mark water capacity test pressure testing station mark and date manufacturers mark standards specification mark tare mass (cylinder weight empty)
8
Q
Filling cylinders
A
Oxygen, air filled to 13700 kpa
Filled according to Daltons law of partial pressure
N2O and CO2 filled by weight due to high critical temperature and still liquid.
Filling ratio: weight of gas in a cylinder : weight of water that cylinder can hold.
9
Q
To check N2O contents
A
Due to its high critical temperature, the pressure gauge wont change much, so to find out contents, need to weigh the cylinder and subtract the tare weight, then divide by the density of the cylinder.
