Scott Medical Products specializes in high accuracy, multi-component anesthetic gas mixtures used to calibrate and verify anesthesia monitors. Scott’s anesthetic standards feature standard and custom blends in a wide variety of refillable and non-refillable cylinder sizes, unmatched by any other medical gas manufacturer.
Scott offers agents including the following:
- Desflurane (Suprane®)
- Enflurane (Ethrane®)
- Halocarbon-22 mixtures
- Halothane
- Isoflurane (Forane®)
- Nitrous oxide mixtures
- Non-agent mixtures
- Sevoflurane (Ultane®)
- Custom specifications
Areas of Use
- Operating room
- Intensive Care/NICU/CCU
- Biomedical engineering
- Instrument manufacturing
- Instrument service organizations
SPECIFICATIONS CHART
| Method of Preparation | Concentration and Pressure | Components | Blend Tolerance | Analytical Accuracy | Gas Specifications |
|---|---|---|---|---|---|
| Gravimetric | ≤ 1% Any Pressure | Anesthetic CO2, O2, N2, N2O | ± 10% Relative | ± 10% Relative | H2O < 20 ppm, CH4< 25 ppm |
| Gravimetric | ≥ 1% 40 ≥ psig | Anesthetic CO2, O2, N2, N2O | ± 2% Relative | ± 2% Relative | H2O < 20 ppm CH4 < 25 ppm |
| Gravimetric | ≥ 1% 40 > P ≥ 10 psig | Anesthetic CO2, O2, N2, N2O | ± 5% Relative | ± 5% Relative | H2O < 20 ppm CH4 < 25 ppm |
| Gravimetric | ≥ 1% < 10 psig | Anesthetic CO2, O2, N2, N2O | ± 10% Relative | ± 10% Relative | H2O < 20 ppm CH4 < 25 ppm |
| Agent type | Expiration Period | Raw Material | Traceability |
|---|---|---|---|
| Halocarbon-23 Mixtures | BD Cylinders — 2 Years | USP/NF or Equivalent | NIST Class 1 Weights |
| Halothane Mixtures | BD, 44, 49, UD, 108 Cylinders — 2 Years | USP/NF or Equivalent | NIST Class 1 Weights |
| Halothane Mixtures | SD Cylinders — 18 Months | USP/NF or Equivalent | NIST Class 1 Weights |
| Halothane Mixtures | ED Cylinders — 1 Year | USP/NF or Equivalent | NIST Class 1 Weights |
| N2O andÊHalocarbon-22 Mixtures | 30AL, ED, 44, 49, PD, UD, 108 Cylinders — 3 Years | USP/NF or Equivalent | NIST Class 1 Weights |
| N2O andÊHalocarbon-22 Mixtures | BD, SD Cylinders — 2 Years | USP/NF or Equivalent | NIST Class 1 Weights |
| Sevoflurane Mixtures | 30AL,BD, SD Cylinders — 2 Years | USP/NF or Equivalent | NIST Class 1 Weights |
| Sevoflurane Mixtures | PD, UD, 108 Cylinders — 1 Year | USP/NF or Equivalent | NIST Class 1 Weights |
| All Other Anesthetic Mixtures | 30AL, BD, 44, 49, SD, UD, 108 Cylinders — 2 Years | USP/NF or Equivalent | NIST Class 1 Weights |
| All Other Anesthetic Mixtures | ED, PD, ZD Cylinders — 1 Year | USP/NF or Equivalent | NIST Class 1 Weights |
Anesthetic Pressure Information
In gas mixtures containing vaporized anesthetic agents such as halothane, the anesthetic agent can condense and separate back into a liquid if exposed to a temperature below the mixture’s dew point. The table below lists the vapor pressures of the common anesthetic agents at 0°C and the maximum pressure for a mix based on standard composition.
To calculate the restricted pressure of your mixture, divide the VP constant for the anesthetic by the concentration. For example, to calculate the final pressure of a 1% halothane balance nitrogen gas mixture, you would divide 1.87 by 0.01 (1%). The resulting pressure or 187 psia (172 psig) is the maximum fill pressure for your gas mixture. This product must be kept above 0°C or condensation and a resulting loss of concentration will occur.
| Agent | Desflurane | Enflurane | Halocarbon-22 | Halocarbon-23 | Halothane | Isoflurane | Nitrous Oxide | Sevoflurane |
| Tradename | Suprane® | Ethrane® | Freon-22® | Freon-23® | Fluothane® | Forane® | - | Ultane® |
| VP @ 0ºC | 4.93 | 1.28 | 72.2 | 363 | 1.87 | 1.77 | 460 | 1.08 |
| Molecular Weight | 168.04 | 184.5 | 86.47 | 70.014 | 197.4 | 184.5 | 44.013 | 200.06 |
| Density (g/ml) | 1.47 | 1.52 | Ð | Ð | 1.87 | 1.5 | Ð | 1.52 |
| Pressure (psig) @ 0ºC 0.50% | 971 | 241 | 2000 | 2000 | 360 | 339 | 2000 | 201 |
| Pressure (psig) @ 0ºC 1.00% | 478 | 113 | 2000 | 2000 | 172 | 162 | 2000 | 93 |
| Pressure (psig) @ 0ºC 2.00% | 231 | 49 | 2000 | 2000 | 78 | 73 | 2000 | 39 |
| Pressure (psig) @ 0ºC 3.00% | 149 | 27 | 2000 | 2000 | 47 | 44 | 2000 | 21 |
| Pressure (psig) @ 0ºC 5.00% | 83 | 11 | 1429 | 2000 | 22 | 20 | 2000 | 6.9 |
| Pressure (psig) @ 0ºC 7.50% | 51 | - | 947 | 2000 | 10 | 8.9 | 2000 | - |
| Pressure (psig) @ 0ºC 25% | - | - | 273 | 1452 | - | - | 1825 | - |
