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Fundamentals Unit 4
SPC Fundamentals Unit 4 Exam 3
| Question | Answer |
|---|---|
| GMW (Gram Molecular Weight) of O2 (Oxygen) | 32 |
| GAW (Gram Atomic Weight) of O2 (Oxygen) | 16 |
| Density of O2 | 1.43g/L |
| What is the boiling Point of O2? | -183 Degree C -297 Degrees F Liquid to Gas @ 1 ATM |
| 1cuft of liquid O2 converts to how much cuft of gas O2? | 860 Cubic ft of gaseous O2 |
| 1 cuft of gas O2 converts to how many liters of gas? | 28.3L of gas |
| E Cylinder | 22cuft=623L |
| H Cylinder | 244cuft=6905L |
| Cylinder Color of O2 (Oxygen) | Green |
| Cylinder Color of CO2 (Carbon Dioxide) | Gray |
| Cylinder Color of He (Helium) | Brown |
| Cylinder Color of N2 (Nitrogen) | Black |
| Cylinder Color of N2O (Nitrous Oxide) | Blue |
| Cylinder Color of He/O2 (Heliox) | Brown/Green |
| NFPA (National Fire Protection Agency) | Regulates storage & handling of cylinders and central-supply gas and piping |
| DOT (Department of Transportation) | Regulates Cylinder construction, testing, and transport |
| CGA (Compressed Gas Association) | Sets all the safety standards of ASSS, DISS, & PISS |
| FDA (Food & Drug Administration) | Sets medical gas purity standards |
| Gas index ASSS | American Standard Safety System |
| Gas index DISS | Diameter Index Safety System |
| Gas index PISS | Pin Index Safety System |
| 3 Types of Regulators | Preset, Adjustable, or Multiple Stage |
| Preset Regulator | Spring tension is preset to maintain constant pressure 2200-50psi |
| Adjustable Regulator | A threaded hand control attached to spring allows one to adjust pressure 2200-100psi |
| Multi-Stage Regulator | 2-3 single stage valves to gradually decrease pressure Ultimately reduced to 50psi (Used in labs only for precise pressure) |
| Bourdon Gauge | Pressure gauge in conjunction w/ a regulator Reads in Liters/Min Gravity does not affect operation Downstream resistance causes gauge to read INACCURATELY HIGH |
| Duration of flow calculation? | (PSI x (Cylinder Factor))/Flow |
| E-Cylinder Factor | 0.28 |
| H-Cylinder Factor | 3.14 |
| Bulk Liquid System | Large Container contains 20,000 cuft of O2 Pressure <250psi Temp <-118.8C Converts to gas passing through vaporized coils @ ambient temperature |
| Portable Liquid | Two units for home care: Reservoir "Stationary Unit" (40L of O2) Portable "Small for Ambulatory" (5-8hrs of O2 @2 L/M) |
| 1lb of liquid O2 converts to what L of gas? | 344 L of gaseous O2 |
| Why is PISS important? | PISS uses 6 different positions that provide 10 different combinations to connect yoke regulators to stem cylinders |
| Possible PISS combinations? | 10 |
| Oxygen pin positions? (PISS) | 2-5 |
| Air pin positions? (PISS) | 1-5 |
| PISS Cylinder Size Range | E-AA |
| PISS Pressure Range | Up to 2200psi |
| Why is DISS important? | A threaded "male" body is MATCHED to a "female" inlet port of a specific diameter. |
| Where is DISS located? | Central Piping & Flowmeter Outlets |
| Possible DISS connections? | 12 |
| DISS Pressure Range | Less than 200psi |
| Why is ASSS important? | Threaded outlet from the stem of the G,H,K cylinders is matched to the hex nut of the regulator |
| O2 Fittings of ASSS | .903(Bore)-14(Threaded/inch) Right-Hand External |
| ASSS Pressure Range | Up to 2200psi |
| Oxygen Concentrators Function | Electrically powered units that use molecular sieves which contain Zeolite to absorb N2/H2O/CO2 from air. |
| T/F O2 Concentrators cannot deliver 100% O2? | True |
| With O2 Concentrator @ 6L/m expect...? | 92%-97% O2 delivered |
| Portable O2 Concentrators | Deliver FIO2 >.30% via Pulse Dose (ml/sec) Weight > 10lbs |
Created by:
Langhout1418
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