The table is a list of all reference materials kept in the IsoLab.
| Reference Material | δD VSMOW | δ13C VPDB | δ15N Air N2 | Δ17O VSMOW | δ18O VSMOW | δ34S VCDT | Material |
| NBS19 1 | +1.95 | +28.65 | limestone | ||||
| LSVEC 1 | -46.6 | +3.39 4 | lithium carbonate | ||||
| NBS18 | -5.01 | +7.20 | limestone | ||||
| C1 | +2.55 | +30.41 | marble | ||||
| C2 | -48.94 | +14.04 | calcium carbonate | ||||
| CQS1 | -39.5 | +14.28 | calcium carbonate | ||||
| CQS2 | -2.13 | +15.16 | calcium carbonate | ||||
| IAEA-NO-3 | +4.76 | -0.2 | +25.60 | potassium nitrate | |||
| USGS34 | -1.8 | -0.1 | -27.9 | potassium nitrate | |||
| USGS35 | +2.7 | +21.6 | +57.5 | sodium nitrate | |||
| USGS34/35mix | +0.45 | +10.75 | nitrate mixture | ||||
| USGS40 | -26.39 | -4.52 | L-glutamic acid | ||||
| USGS41 | +37.63 | +47.57 | L-glutamic acid | ||||
| NIST1547 4 | -25.99 | +1.98 | peach leaves | ||||
| GA1 | -28.2 | -4.6 | glutamic acid | ||||
| GA2 | -13.6 | -5.6 | glutamic acid | ||||
| Salmon | Bristol Bay Sockeye | ||||||
| IAEA-S-1 2 | -0.3 | silver sulfide | |||||
| IAEA-S-3 | -32.55 | silver sulfide | |||||
| NBS-127 | +21.1 | barium sulfate | |||||
| Ag2S | +17.60 | silver sulfide | |||||
| ZnS | -32.31 | zinc sulfide | |||||
| Ba100 | +4.59 | barium sulfate | |||||
| sulfα | sodium sulfate | ||||||
| sulfβ | sodium sulfate | ||||||
| sulfε | sodium sulfate | ||||||
| VSMOW2 3 | 0 | 0 | Vienna Standard Mean Ocean Water | ||||
| GISP | -190 | -24.8 | Greenland Ice Sheet Precipitation Water | ||||
| SLAP2 3 | -428 | -55.5 | Standard Light Antarctic Precipitation Water | ||||
| PW | -41.91 | -6.88 | Pennsylvania Water | ||||
| SW | -75.49 | -10.50 | Seattle Water | ||||
| AW | -231.11 | -29.83 | Antarctic Water | ||||
| WW | -267.44 | -33.76 | WAIS Water | ||||
| SVW | -316.68 | -41.10 | Seattle / Vostok Water | ||||
| VW | -438.57 | -56.56 | Vostok Water | ||||
1 - sets scale for VPDB
2 - sets scale for VCDT
3 - sets scale for VSMOW
4 - NOT accepted, merely a guide
VPDB = 0.97001*VSMOW - 29.99 (from Coplen blue book)