| (E) | Existing |
| (N) | New |
| µ | Micro |
| µA | Microampere |
| µF | Microfarad |
| µg | Microgram |
| µH | Microhenry |
| µm | Micrometer |
| µmho | Micromho |
| µs | Microsecond |
| µS | Microsiemens |
| µW | Microwatt |
| ..." | Second (plane angle) |
| ...' | Minute (plane angle) |
| A | Angstrom |
| A/C | Air Conditioning Unit |
| ACCEL | Accelerator |
| AFF | Above Finished Floor |
| AH | Air Handler |
| AP | Pulsed Steering Mag |
| AT | Ampere Trip |
| ATF | Accelerator Test Facility |
| B | Bend Magnet |
| B or D | DC Bending Dipole |
| BC | Bare Copper |
| BCW | Bare Copper Wire |
| BCIM | Beam Current Intensity Monitor |
| BFAC | B-Factory |
| BH | Beam Hardener |
| BOD | Bottom of Duct |
| BSC | Beam Stay Clear |
| BU | Backup |
| C | Collimator, High "Z" Collimator |
| C/T | Cold Test |
| CCS | Collider Correction Section |
| CEH | Collider Experiment Hall |
| CHWR | Chilled Water Return |
| CHWS | Chilled Water Supply |
| CND | Conductor |
| CO | Conduit Only |
| COL | Collimater |
| COLIM | Collimater |
| CON | Controls |
| COND | Conduit |
| CORR | Corrector Magnet |
| CU | Copper |
| CV | Control Valve |
| D | Dipole Magnet |
| D or B | DC Bending Dipole |
| D or T | Dump |
| D/C | Directional Coupler |
| D/S | Down Stream |
| DA | Direct Action |
| DCBD | DC Bending Dipole |
| DIP | Distributed Ion Pump |
| DM | Disaster Monitor |
| DR | Damping Rings |
| DRIP | Damping Ring Interaction Point |
| EM | Emission Monitor |
| EMO | Electric Motor Operator |
| EW | Eye Wash |
| EXTR LN | Extraction Line |
| FA | Fire Alarm |
| FCO | Floor Cleanout |
| FD | Fire Damper |
| FF | Final Focus |
| FF | Finding Foil |
| FPP | Fast Pulse Pick up |
| FRD/CP | Faraday Cup |
| FS | Flow or float Switch |
| FT | Final Telescope |
| Ft2 | Square foot |
| FV | Fast Acting Vacuum Valve, Remotely Operated Acc. Valve |
| GA | Gauge |
| HDSCP | Hodoscope |
| HEB | High Energy Beam |
| HER | High Energy Ring |
| HHWR | Heating Hot Water Return |
| HHWS | Heating Hot Water Supply |
| HLAM | Horizontal Lambertson |
| HOA | Hand-Off-Automatic |
| HPTM | High Power Target Module |
| HV | Heating & Ventilating Unit |
| HZ | Hertz (Cycles Per Second) |
| I | Beam Current Intensity Monitor |
| I.E. | Invert Elevation with Reference to Bottom of Pipe |
| I/P | Input |
| In2 | Square inch |
| INJ | Injection |
| IP | Interation Point |
| IP | Ion Pump |
| IR | Interaction Region |
| ISP | Beam Current Intensity Monitor |
| IV | Isolation Vacuum Value (Slow), Manually Operated Acc. Valve |
| K | Kicker Magnet |
| KLY | Klystron |
| L/S | Liters per second |
| lbf | Pound-force |
| lbf/ft2 | Pound-force per square foot |
| lbf/in2 | Pound-force per square inch |
| LCID | Linac CID |
| LEB | Low Energy Beam |
| LER | Low Energy Ring |
| LOS | Lockout Stop |
| LS | Level Switch |
| LSH | Level Switch High |
| LSL | Level Switch Low |
| M2 | Megohm |
| M2 | Square meter |
| M/T | Magic Tee |
| MCC | Motor Control Center |
| MCM | Thousands Circular Mils |
| MD | Manual Damper |
| Mi/h | Mile per hour |
| Mil | Mil |
| Min | Minute (time) |
| Ml | Milliliter |
| MmHg | Millimeter of mercury, conventional |
| Ms | Millisecond |
| mS | Millisiemens |
| MTR | Motor |
| MV | Millivolts |
| mV | Millivolt |
| MW | Megawatt |
| mW | Milliwatt |
| N | Newton |
| N-M | Newton meter |
| N/M2 | Newton per square meter |
| nA | Nanoampere |
| NDR | North Damping Ring |
| nF | Nanofarad |
| NFF | North Final Focus |
| NIT | North Injection Transport |
| NLC | Next Linear Collider |
| NLTR | North Linac-To-Ring |
| Nm | Nanometer |
| Np | Neper |
| NRTL | North Ring-To-Linac |
| Ns | Nanosecond |
| nW | Nanowatt |
| O/P | Output |
| OA | Outside Air |
| OE | Oersted |
| OL | Overload |
| OT | Optical Target |
| P | Beam Position Monitor |
| P(S) | Synchrotron Light Monitor |
| P.O.C. | Point of Connection |
| P/O | Pump Out |
| P/P | Pole Plate |
| pA | Picoampere |
| PC | Protection Collimator |
| PCM | Pulse-count modulation |
| PCM | Programmable Control Module |
| Pdl | Poundal |
| PENULT | Penultimate |
| PEP2 | PEP-II (Use for SPIRES) |
| PF | Profile Monitor |
| pF | Picofarad |
| PGUN | Polarized Gun |
| PM | Pulsed Bending magnet |
| PM | Profile Monitor |
| PM | Profile Monitor |
| PM | Phase modulation |
| PMV | Pulsed Magnet Vertical |
| POL GUN | Polarized Gun |
| PR | Beam Profile Monitor, Chernkov Cell, Phosphor Screen |
| PR | Profile Monitor |
| PRD | Pressure Relief Damper |
| PRL | Positron Return Line |
| PROF | Profile Monitor |
| ProMon | Profile Monitor |
| PS | Pressure Switch |
| PS | Push Button |
| PS | Vacuum Pumping (Sbove Housing) |
| PS | Picosecond |
| Psi | Pound per square inch |
| PSM | Vacuum Pumping (Mech) (Above Housing) |
| pW | Picowatt |
| Q | Quadrupole Magnet |
| QD | Quadrupole Defocusing |
| QF | Quadrupole Focusing |
| QUAD | Quadrupole |
| QUAD | Quadrupole Magnet |
| R | Roentgen |
| R/min | Revolution per minute |
| R/R | Resonant Ring |
| R/s | Revolution per second |
| RA | Return Air |
| RCMBNR | Recombiner |
| RHM | Running Hour Meter |
| RSC | Ridig Steel Conduit |
| S | Beam Energy Spectrum Ind. |
| s | Second (time) |
| S | Siemens |
| S.M. | Sheet Metal |
| S/P | Spool Piece |
| SA | Supply Air |
| SC | Safety Collimator |
| SD | Sextupol Defocusing |
| SDP | Permanent Sextupole- defocusing |
| SDR | South Damping Ring |
| SEM | Secondary Emission Monitor |
| SEP | Septum |
| SEPT | Septum Magnet |
| SEXT | Sextupole |
| SF | Sextupol Focusing |
| SFF | South Final Focus |
| SFP | Permanent Sextupole - focusing |
| SHB | Sub Harmonic Buncher |
| SHD | Shielded |
| SIT | South Injection Transport |
| SL | Energy Defining Slit, High "Z" Slit |
| SLTR | South Linac-To-Ring |
| SM | Permanenet Safety Magnet |
| SPECT | Spectrometer Line |
| SPTRM | Spectrometer |
| SR | Synchrotron Radiation |
| Sr | Steradian |
| SRTL | South Ring-To-Linac |
| ST | Beam Stopper |
| SUB BSTR | Subbooster |
| SV | Solenoid Valve |
| T | Tesla |
| T or D | Dump |
| TA | Test Accelerator |
| TB | Terminal Box |
| TC | Target Changer Multiple, Beryllium, Single Foil, Liquid H2 or D2 |
| TC | Beam Target Changer |
| TCW | Thermocouple Wire |
| TD | Time Delay |
| TDC | Time Delay Closed |
| TDO | Time Delay Open |
| TOP | Top of Duct |
| TOR | Toroid |
| TPI | Tap Changer Position Indicator |
| TRANS | Transformer |
| TRNARND | Turnaround |
| TS | Temperature Switch |
| TST | Test |
| TV | Television Camera |
| TX | Transducer |
| U/S | Up Stream |
| UG | Underground |
| UNO | Unless Noted Otherwise |
| USTATION | Microstation |
| UT | Upper Transformer |
| UTL | Uitilities |
| VAC | Volts Alternating Current |
| VAR | Voltage Amp reactive |
| Var | Var |
| VD | Volume Damper |
| VDC | Volts Direct Current |
| VLAM | Vertical Lambertson |
| VTR | Vent Thru Roof |
| W/ | With |
| W/(sr-m2) | Watt per steradian square meter |
| W/C | Water Cooling |
| W/G | Wave Guide |
| W/G | Waveguide |
| W/L | Water Load |
| W/O | Without |
| W/sr | Watt per steradian |
| Wb | Weber |
| WH | Watthour |
| WHD | Watthour Demand Meter |
| WHDL | Watthour Demand Limiter |
| WIRE | Wire Scanner |
| WP | Weatherproof |
| WS | Wire Scanner |
| WSCNR | Wire Scanner |
| WTA | West Turnaround |
| XBBM | X Length Bunch Monitor |
| XCOR | X Corrector Magnet |
| YCOR | Y Corrector Magnet |
| Yd2 | Square yard |
| ZFMR | Transformer |
| ZS | Limit Switch |
