List of Tables
H157654_9_011 115 / 120
List of Tables
Table 1.1: Metric to American Conversion Factors............................................................................... 8
Table 2.1: Action Levels for Magnetic Flux Density of Static Magnetic Fields...................................... 10
Table 2.2: ELVs for External Magnetic Flux Density (B
0
) and 0 to 1 Hz ............................................... 12
Table 2.3: Example of Maximum Retention Periods............................................................................. 13
Table 2.4: BGV B15 Standards for Standard Precautions and Users .................................................. 14
Table 2.5: BGV B15 Standards Under Special Conditions for Selected Subgroups ............................ 14
Table 4.1: Door Dimensions: Standard Bore 54 mm ............................................................................ 29
Table 4.2: Door Dimensions: Wide Bore 89 mm .................................................................................. 30
Table 4.3: Door Dimensions: Super Wide Bore 154 mm ...................................................................... 30
Table 4.4: Door Dimensions for Magnet Stand: Standard Bore 54 mm ............................................... 31
Table 4.5: Door Dimensions for Magnet Stand: Wide Bore 89 mm ...................................................... 32
Table 4.6: Door Dimensions for Magnet Stand: Super Wide Bore 154 mm ......................................... 32
Table 4.7: Magnet Transport Weights: Standard Bore 54 mm ............................................................. 32
Table 4.8: Magnet Transport Weights: Wide Bore 89 mm.................................................................... 33
Table 4.9: Magnet Transport Weights: Super Wide Bore 154 mm ....................................................... 33
Table 4.10: Door Dimensions for Magnet Room Access: Spectrometers .............................................. 33
Table 4.11: Crate Dimensions and Weights for Accessories.................................................................. 34
Table 5.1: Helium Transfer Line Dimensions........................................................................................ 39
Table 5.2: Minimum Ceiling Height Requirements: Standard Bore 54 mm .......................................... 41
Table 5.3: Minimum Ceiling Height Requirements: Wide Bore 89 mm................................................. 41
Table 5.4: Minimum Ceiling Height Requirements: Super Wide Bore 154 mm .................................... 41
Table 6.1: Effects of Magnetic Fields on Equipment ............................................................................ 43
Table 6.2: Horizontal Fringe Fields: Standard Bore 54 mm.................................................................. 44
Table 6.3: Horizontal Fringe Fields: Wide Bore 89 mm ........................................................................ 44
Table 6.4: Horizontal Fringe Fields: Super Wide Bore 154 mm ........................................................... 44
Table 6.5: Vertical Fringe Fields: Standard Bore 54 mm ...................................................................... 45
Table 6.6: Vertical Fringe Fields: Wide Bore 89 mm ............................................................................ 45
Table 6.7: Vertical Fringe Fields: Super Wide Bore 154 mm................................................................ 45
Table 7.1: Application and Interpretation of the Generic Vibration Criterion (VC) Curves .................... 48
Table 7.2: EMI Damping System (Elastomeric Isolators) ..................................................................... 50
Table 7.3: ADI Damping System (Elastomeric Isolators)...................................................................... 52
Table 7.4: Tolerance Level for API Damping System ........................................................................... 54
Table 7.5: Recommendations for Static Magnetic Objects ................................................................... 55
Table 7.6: Recommendations for Moveable Magnetic Objects ............................................................ 55
Table 7.7: List of Most Commonly Studied Nuclei and Corresponding Resonance Frequencies ........ 60
Table 8.1: Requirements of Basic System (2 Channels) ...................................................................... 62
Table 8.2: Pressure and Flow Requirements ....................................................................................... 65
Table 8.3: VT Nitrogen Gas Quality (500 MHz and above) .................................................................. 66
Table 8.4: Maximum Humidity in the NMR Laboratory ......................................................................... 72