Reference Materials and Calibration Services

By Reston Stable Isotope Laboratory (RSIL)

The Reston Stable Isotope Laboratory (RSIL) of the United States Geological Survey provides isotopic reference materials and calibrates user-supplied materials. Reference materials are suitable for use in calibration of analytical instrumentation, for testing analytical methodologies, and for use as quality control samples.

Isotopic Reference Materials and Calibration Services

To request Isotopic Reference Materials, a USGS Facility Service/User Agreement or Interagency Agreement (required for federal customers) needs to be filled out, signed, and transmitted to the RSIL. The signed agreement can either be scanned and saved as a pdf file and emailed to isotopes@usgs.gov or faxed to Jennifer Lorenz (secure fax number 703-648-5889). Generally, users only need to fill out this form for their first order. This form will be retained on file and can be used for subsequent orders for five years. After five years, the agreement will need to be renewed.
Fill out the USGS RSIL Order Form and email it to isotopes@usgs.gov or fax it to Jennifer Lorenz (secure fax number 703-648-5889).
After receiving the USGS Facility Service/User Agreement or Interagency Agreement and the USGS RSIL Order Form, an order confirmation will be sent to the customer, which is used by the customer to designate payment type. The accepted forms of payment per the USGS Facility Service/User Agreement are credit card, check and wire transfer. Federal customers are billed monthly per the terms of the Interagency Agreement. After payment information is received from the customer, both the payment and order are processed.
Solid isotopic reference materials can be shipped immediately after the required documents have been received and the payment has been processed.
The turnaround time for international distributed water references sealed in silver tubes is 1-3 weeks.
If UPW (user-provided water) in silver tubes is required, the turnaround time is 1-2 weeks without calibration and 2-4 weeks with calibration. The user's samples should be sent to:

Reston Stable Isotope Laboratory
U.S. Geological Survey
12201 Sunrise Valley Drive
Mail Stop 431, Room 5B142
Reston, Virginia 20192
+1 (703) 648-5859

Reston stable isotope lab RSIL Reference Caps

Sources/Usage: Public Domain. View Media Details

Silver capsules containing reference water used for the calibration of stable hydrogen and oxygen measurements.

Reston stable isotope lab: Reference VSMOW

Sources/Usage: Public Domain. View Media Details

Glass ampoules of reference material VSMOW (Vienna Standard Mean Ocean Water).

Prices for Isotopic Reference Materials and Calibration Services

Click on Reference ID Number to access the Report of Isotopic Composition.
Last updated: January 31, 2025.

Reference ID Number and Report of Isotopic Composition	Description of Material	Amount	Price	Isotope Values
USGS24	Graphite	0.8 g	$190	δ¹³C = —16.05 ‰
USGS25	Ammonium sulfate	> 0.6 g	$356	δ¹⁵N = —30.41 ‰
USGS26	Ammonium sulfate	> 0.8 g	$356	δ¹⁵N = +53.75 ‰
USGS32	Potassium nitrate	0.3 g	$413	δ¹⁵N = +180 ‰ δ¹⁸O = ~ +25.5 ‰
USGS34	Potassium nitrate	0.3 g	$413	δ¹⁵N = —1.8 ‰ δ¹⁸O = ~ —28 ‰
USGS35	Sodium nitrate	0.3 g	$413	δ¹⁵N = +2.7 ‰ δ¹⁸O = ~ +57 ‰
USGS37	Potassium perchlorate	1 g	$718	δ³⁷Cl = +0.90 ‰ δ¹⁸O = —17.00 ‰ δ¹⁷O = —8.96 ‰
USGS38	Potassium perchlorate	1 g	$718	δ³⁷Cl = —87.90 ‰ δ¹⁸O = +52.50 ‰ δ¹⁷O = +102.40 ‰
USGS39	Potassium perchlorate	1 g	$718	δ³⁷Cl = +0.05 ‰ δ¹⁸O = +122.3 ‰ δ¹⁷O = +62.6 ‰
USGS40	L-glutamic acid	2 g	$240	δ¹⁵N = —4.52 ‰ δ¹³C = —26.39 ‰
USGS41a	L-glutamic acid enriched in ¹³C & ¹⁵N	0.5 g	$230	δ¹⁵N = +47.55 ‰ δ¹³C = +36.55 ‰
USGS41	L-glutamic acid enriched in ¹³C & ¹⁵N	0.5 g	supply exhausted	δ¹⁵N = +47.57 ‰ δ¹³C = +37.63 ‰
USGS42	Tibetan human hair powder (< 100 mesh)	0.5 g	$429	δ²H = —72.9 ‰ δ¹⁸O = +8.56 ‰ δ¹⁵N = +8.05 ‰ δ¹³C = —21.09 ‰ δ³⁴S = +7.84 ‰
USGS43	Indian human hair powder (< 60 mesh)	0.5 g	$429	δ²H = —44.4 ‰ δ¹⁸O = +14.11 ‰ δ¹⁵N = +8.44 ‰ δ¹³C = —21.28 ‰ δ³⁴S = +10.46 ‰
CBS	Caribou Hoof Standard	0.5 g	$217	δ²H = —157.0 ‰ δ¹⁸O = +2.39 ‰
KHS	Kudu Horn Standard	0.5 g	$217	δ²H = —35.3 ‰ δ¹⁸O = +21.21 ‰
USGS44	Merck high purity CaCO_3. Intended for calibration of VPDB carbon-isotope-delta scale.	0.5 g	$216	δ¹³C = —42.21 ‰
USGS45	Set of 16 ampoules having 4 mL of Biscayne Aquifer Drinking Water per ampoule	64 mL	$340	δ²H = —10.3 ‰ δ¹⁸O = —2.238 ‰
USGS45	Case of 144 ampoules having 4 mL of Biscayne Aquifer Drinking Water per ampoule	576 mL	$1,258	δ²H = —10.3 ‰ δ¹⁸O = —2.238 ‰
USGS45	Case of 144 ampoules having 5 mL of Biscayne Aquifer Drinking Water per ampoule	720 mL	$1,575	δ²H = —10.3 ‰ δ¹⁸O = —2.238 ‰
USGS46	Set of 16 ampoules having 4 mL of Ice Core Water per ampoule	64 mL	supply exhausted	δ²H = —235.8 ‰ δ¹⁸O = —29.80 ‰
USGS46	Case of 144 ampoules having 4 mL of Ice Core Water per ampoule	576 mL	supply exhausted	δ²H = —235.8 ‰ δ¹⁸O = —29.80 ‰
USGS46a	Set of 16 ampoules having 5 mL of Ice Core Water per ampoule	80 mL	$358	δ²H = —235.6 ‰ δ¹⁸O = —30.09 ‰
USGS46a	Case of 144 ampoules having 5 mL of Ice Core Water per ampoule	720 mL	$1,575	δ²H = —235.6 ‰ δ¹⁸O = —30.09 ‰
USGS47	Set of 16 ampoules having 5 mL of Lake Louise Drinking Water per ampoule	80 mL	$358	δ²H = —150.2 ‰ δ¹⁸O = —19.80 ‰
USGS47	Case of 144 ampoules having 5 mL of Lake Louise Drinking Water per ampoule	720 mL	$1,575	δ²H = —150.2 ‰ δ¹⁸O = —19.80 ‰
USGS48	Set of 16 ampoules having 5 mL of Puerto Rico Precipitation per ampoule	80 mL	$358	δ²H = —2.0 ‰ δ¹⁸O = —2.224 ‰
USGS48	Case of 144 ampoules having 5 mL of Puerto Rico Precipitation per ampoule	720 mL	$1,575	δ²H = —2.0 ‰ δ¹⁸O = —2.224 ‰
USGS49	Set of 16 ampoules having 5 mL of Antarctic Ice-core Water per ampoule	80 mL	$358	δ²H = —394.7 ‰ δ¹⁸O = —50.55 ‰
USGS49	Case of 144 ampoules having 5 mL of Antarctic Ice-core Water per ampoule	720 mL	$1,575	δ²H = —394.7 ‰ δ¹⁸O = —50.55 ‰
USGS50	Set of 16 ampoules having 5 mL of Lake Kyoga Water per ampoule	80 mL	$358	δ²H = +32.8 ‰ δ¹⁸O = +4.95 ‰
USGS50	Case of 144 ampoules having 5 mL of Lake Kyoga Water per ampoule	720 mL	$1,575	δ²H = +32.8 ‰ δ¹⁸O = +4.95 ‰
USGS51	Nitrous oxide in 6-mm glass tube	~200 μmol	$238	δ¹⁵N = +1.32 ‰ δ¹⁸O = +41.23 ‰
USGS52	Nitrous oxide in 6-mm glass tube	~200 μmol	$238	δ¹⁵N = +0.44 ‰ δ¹⁸O = +40.64 ‰
USGS53	Set of 16 ampoules having 5 mL of Lake Shala Distilled Water per ampoule	80 mL	$510	δ²H = +40.2 ‰ δ¹⁸O = +5.47 ‰
USGS54	Canadian lodgepole pine wood powder	0.5 g	$470	δ²H = —150.4 ‰ δ¹⁸O = +17.79 ‰ δ¹³C = —24.43 ‰ δ¹⁵N = —2.42 ‰
USGS55	Mexican ziricote wood powder	0.5 g	$470	δ²H = —28.2 ‰ δ¹⁸O = +19.12 ‰ δ¹³C = —27.13 ‰ δ¹⁵N = —0.3 ‰
USGS56	South African red ivorywood powder	0.5 g	$470	δ²H = —44.0 ‰ δ¹⁸O = +27.23 ‰ δ¹³C = —24.34 ‰ δ¹⁵N = +1.8 ‰
USGS57	Biotite	0.5 g	$299	δ²H = —91.5 ‰
USGS58	Muscovite	0.5 g	$299	δ²H = —28.4 ‰
USGS61	Caffeine	0.5 g	$275	δ²H = +96.9 ‰ δ¹³C = —35.05 ‰ δ¹⁵N = —2.87 ‰
USGS62	Caffeine	0.5 g	$275	δ²H = —156.1 ‰ δ¹³C = —14.79 ‰ δ¹⁵N = +20.17 ‰
USGS63	Caffeine	0.5 g	$275	δ²H = +174.5 ‰ δ¹³C = —1.17 ‰ δ¹⁵N = +37.83 ‰
USGS64	Glycine	0.5 g	$275	δ¹³C = —40.81 ‰ δ¹⁵N = +1.76 ‰
USGS65	Glycine	0.5 g	$275	δ¹³C = —20.29 ‰ δ¹⁵N = +20.68 ‰
USGS66	Glycine	0.5 g	$275	δ¹³C = —0.67 ‰ δ¹⁵N = +40.83 ‰
USGS67	n-hexadecane	50 μL	$275	δ²H = —166.2 ‰ δ¹³C = —34.50 ‰
USGS68	n-hexadecane	50 μL	$275	δ²H = —10.2 ‰ δ¹³C = —10.55 ‰
USGS69	n-hexadecane	50 μL	$275	δ²H = +381.4 ‰ δ¹³C = —0.57 ‰
USGS70	Icosanoic acid methyl ester (C20 FAME)	100 mg	$275	δ²H = —183.9 ‰ δ¹³C = —30.53 ‰
USGS71	Icosanoic acid methyl ester (C20 FAME)	100 mg	$275	δ²H = —4.9 ‰ δ¹³C = —10.5 ‰
USGS72	Icosanoic acid methyl ester (C20 FAME)	100 mg	$275	δ²H = +348.3 ‰ δ¹³C = —1.54 ‰
USGS73	L-valine	0.5 g	$275	δ¹³C = —24.03 ‰ δ¹⁵N = —5.21 ‰
USGS74	L-valine	100 mg	$275	δ¹³C = —9.30 ‰ δ¹⁵N = +30.19 ‰
USGS75	L-valine	100 mg	$275	δ¹³C = +0.49 ‰ δ¹⁵N = +61.53 ‰
USGS76	Methylheptadecanoate	50 μL	$275	δ²H = —210.8 ‰ δ¹³C = —31.36 ‰
USGS77	Polyethylene powder	1 g	$275	δ²H = —75.9 ‰ δ¹³C = —30.71 ‰
NBS 22a	Vacuum oil, regular	1 mL	$275	δ²H = —120.4 ‰ δ¹³C = —29.72 ‰
USGS78	Vacuum oil, ²H-enriched	1 mL	$275	δ²H = +397.0 ‰ δ¹³C = —29.72 ‰
USGS80	Silver phosphate	0.5 g	$341	δ¹⁸O = ~ +13.1 ‰
USGS81	Silver phosphate	0.5 g	$374	δ¹⁸O = ~ +35.4 ‰
USGS82	Honey from tropical Vietnam	1 mL	$275	δ²H = —43.1 ‰ δ¹⁸O = +19.44 ‰ δ¹³C = —24.31 ‰
USGS83	Honey from prairie in Canada	1 mL	$275	δ²H = —110.5 ‰ δ¹⁸O = +18.20 ‰ δ¹³C = —26.20 ‰
USGS84	Olive oil from Sicily, Italy	1 mL	$275	δ²H = —140.4 ‰ δ¹⁸O = +26.36 ‰ δ¹³C = —28.80 ‰
USGS85	Olive oil from coastal desert, Peru	1 mL	$275	δ²H = —158.6 ‰ δ¹⁸O = +22.00 ‰ δ¹³C = —29.74 ‰
USGS86	Peanut oil from tropical Vietnam	1 mL	$275	δ²H = —207.4 ‰ δ¹⁸O = +18.76 ‰ δ¹³C = —30.63 ‰
USGS87	Corn oil from USA	1 mL	$275	δ²H = —168.1 ‰ δ¹⁸O = +20.11 ‰ δ¹³C = —15.51 ‰
USGS88	Marine collagen from wild-caught fish	0.5 g	$275	δ²H = +20.1 ‰ δ¹⁸O = +15.91 ‰ δ¹³C = —16.06 ‰ δ¹⁵N = +14.96 ‰ δ³⁴S = +17.10 ‰
USGS89	Porcine collagen	0.5 g	$275	δ²H = —43.7 ‰ δ¹⁸O = +8.37 ‰ δ¹³C = —18.13 ‰ δ¹⁵N = +6.25 ‰ δ³⁴S = +3.86 ‰
USGS90	Millet flour from Tuscany, Italy	0.5 g	$275	δ²H = —13.9 ‰ δ¹⁸O = +35.90 ‰ δ¹³C = —13.75 ‰ δ¹⁵N = +8.84 ‰ δ³⁴S = —15.14 ‰
USGS91	Rice flour from tropical Vietnam	0.5 g	$275	δ²H = —45.7 ‰ δ¹⁸O = +21.13 ‰ δ¹³C = —28.28 ‰ δ¹⁵N = +1.78 ‰ δ³⁴S = —20.85 ‰
GFLES-1	Water enriched in ²H	5 mL	$159	δ²H = +80.1 ‰ δ¹⁸O = —6.25 ‰ δ¹⁷O = —3.32 ‰
GFLES-2	Water enriched in ²H	5 mL	$159	δ²H = +159.9 ‰ δ¹⁸O = —6.21 ‰ δ¹⁷O = —3.3 ‰
GFLES-3	Water enriched in ²H	5 mL	$159	δ²H = +280.2 ‰ δ¹⁸O = —6.14 ‰ δ¹⁷O = —3.28 ‰
GFLES-4	Water enriched in ²H	5 mL	$159	δ²H = +399.8 ‰ δ¹⁸O = —6.08 ‰ δ¹⁷O = —3.25 ‰
GFLES Set	Set of 4 ampoules; 1 each of GFLES-1 through GFLES-4	20 mL	$636	See above values
VSMOW (original reference water)	Water, 5 mL in glass ampoule	5 mL	$638	δ²H = 0 exactly δ¹⁸O = 0 exactly
NBS 22-0.15 μL	Oil in silver tube, batch of 50	0.15 μL each	$380	δ²H = —117.2 ‰ δ¹³C = —30.02 ‰
NBS 22-0.25 μL	Oil in silver tube, batch of 50	0.25 μL each	$380	δ²H = —117.2 ‰ δ¹³C = —30.02 ‰
NBS 22a-0.15 μL	Oil in silver tube, batch of 50	0.15 μL each	$380	δ²H = —120.4 ‰ δ¹³C = —29.72 ‰
NBS 22a-0.25 μL	Oil in silver tube, batch of 50	0.25 μL each	$380	δ²H = —120.4 ‰ δ¹³C = —29.72 ‰
USGS78-0.15 μL	Oil in silver tube, batch of 50	0.15 μL each	$380	δ²H = +397.0 ‰ δ¹³C = —29.72 ‰
USGS78-0.25 μL	Oil in silver tube, batch of 50	0.25 μL each	$380	δ²H = +397.0 ‰ δ¹³C = —29.72 ‰
VSMOW-0.15 μL	Water in silver tube, batch of 50	0.15 μL each	$410	δ²H = 0 exactly δ¹⁸O = 0 exactly
VSMOW-0.25 μL	Water in silver tube, batch of 50	0.25 μL each	$410	δ²H = 0 exactly δ¹⁸O = 0 exactly
VSMOW2-0.15 µL	Water in silver tube, batch of 50	0.15 μL each	$410	δ²H = 0.0 ‰ δ¹⁸O = 0.00 ‰
VSMOW2-0.25 µL	Water in silver tube, batch of 50	0.25 μL each	$410	δ²H = 0.0 ‰ δ¹⁸O = 0.00 ‰
SLAP-0.15 µL	Water in silver tube, batch of 50	0.15 μL each	$410	δ²H = —428.0 ‰ δ¹⁸O = —55.50 ‰
SLAP-0.25 µL	Water in silver tube, batch of 50	0.25 μL each	$410	δ²H = —428.0 ‰ δ¹⁸O = —55.50 ‰
SLAP2-0.15 μL	Water in silver tube, batch of 50	0.15 μL each	$410	δ²H = —427.5 ‰ δ¹⁸O = —55.5 ‰
SLAP2-0.25 μL	Water in silver tube, batch of 50	0.25 μL each	$410	δ²H = —427.5 ‰ δ¹⁸O = —55.5 ‰
GISP-0.15 μL	Water in silver tube, batch of 50	0.15 μL each	$410	δ²H = —189.7 ‰ δ¹⁸O = —24.78 ‰
GISP-0.25 μL	Water in silver tube, batch of 50	0.25 μL each	$410	δ²H = —189.7 ‰ δ¹⁸O = —24.78 ‰
UC03-0.15 μL	Water in silver tube, batch of 50	0.15 μL each	$380	δ²H = +68.5 ‰ δ¹⁸O = +29.79 ‰
UC03-0.25 μL	Water in silver tube, batch of 50	0.25 μL each	$380	δ²H = +68.5 ‰ δ¹⁸O = +29.79 ‰
UC04-0.15 μL	Water in silver tube, batch of 50	0.15 μL each	$380	δ²H = +113.6 ‰ δ¹⁸O = +38.95 ‰
UC04-0.25 μL	Water in silver tube, batch of 50	0.25 μL each	$380	δ²H = +113.6 ‰ δ¹⁸O = +38.95 ‰
USGS46-0.15 μL	Ice Core Water in silver tube, batch of 50	0.15 μL each	$380	δ²H = —235.8 ‰ δ¹⁸O = —29.80 ‰
USGS46-0.25 μL	Ice Core Water in silver tube, batch of 50	0.25 μL each	$380	δ²H = —235.8 ‰ δ¹⁸O = —29.80 ‰
USGS46a-0.15 μL	Ice Core Water in silver tube, batch of 50	0.15 μL each	$380	δ²H = —235.6 ‰ δ¹⁸O = —30.09 ‰
USGS46a-0.25 μL	Ice Core Water in silver tube, batch of 50	0.25 μL each	$380	δ²H = —235.6 ‰ δ¹⁸O = —30.09 ‰
USGS47-0.15 μL	Lake Louise Drinking Water in silver tube, batch of 50	0.15 μL each	$380	δ²H = —150.2 ‰ δ¹⁸O = —19.80 ‰
USGS47-0.25 μL	Lake Louise Drinking Water in silver tube, batch of 50	0.25 μL each	$380	δ²H = —150.2 ‰ δ¹⁸O = —19.80 ‰
USGS48-0.15 μL	Puerto Rico Precipitation in silver tube, batch of 50	0.15 μL each	$380	δ²H = —2.0 ‰ δ¹⁸O = —2.224 ‰
USGS48-0.25 μL	Puerto Rico Precipitation in silver tube, batch of 50	0.25 μL each	$380	δ²H = —2.0 ‰ δ¹⁸O = —2.224 ‰
USGS49-0.15 μL	Antarctic Ice-core Water in silver tube, batch of 50	0.15 μL each	$380	δ²H = —394.7 ‰ δ¹⁸O = —50.55 ‰
USGS49-0.25 μL	Antarctic Ice-core Water in silver tube, batch of 50	0.25 μL each	$380	δ²H = —394.7 ‰ δ¹⁸O = —50.55 ‰
USGS50-0.15 μL	Lake Kyoga Water in silver tube, batch of 50	0.15 μL each	$380	δ²H = +32.8 ‰ δ¹⁸O = +4.95 ‰
USGS50-0.25 μL	Lake Kyoga Water in silver tube, batch of 50	0.25 μL each	$380	δ²H = +32.8 ‰ δ¹⁸O = +4.95 ‰
USGS53-0.15 μL	Lake Shala Distilled Water in silver tube, batch of 50	0.15 μL each	$380	δ²H = +40.2 ‰ δ¹⁸O = +5.47 ‰
USGS53-0.25 μL	Lake Shala Distilled Water in silver tube, batch of 50	0.25 μL each	$380	δ²H = +40.2 ‰ δ¹⁸O = +5.47 ‰
USGS82-0.15 μL	Honey from tropical Vietnam in silver tube, batch of 50	0.15 μL	$410	δ²H = —43.1 ‰ δ¹⁸O = +19.44 ‰ δ¹³C = —24.31 ‰
USGS82-0.25 μL	Honey from tropical Vietnam in silver tube, batch of 50	0.25 μL	$410	δ²H = —43.1 ‰ δ¹⁸O = +19.44 ‰ δ¹³C = —24.31 ‰
USGS83-0.15 μL	Honey from prairie in Canada in silver tube, batch of 50	0.15 μL	$410	δ²H = —110.5 ‰ δ¹⁸O = +18.20 ‰ δ¹³C = —26.20 ‰
USGS83-0.25 μL	Honey from prairie in Canada in silver tube, batch of 50	0.25 μL	$410	δ²H = —110.5 ‰ δ¹⁸O = +18.20 ‰ δ¹³C = —26.20 ‰
USGS84-0.15 μL	Olive oil from Sicily, Italy in silver tube, batch of 50	0.15 μL	$410	δ²H = —140.4 ‰ δ¹⁸O = +26.36 ‰ δ¹³C = —28.80 ‰
USGS84-0.25 μL	Olive oil from Sicily, Italy in silver tube, batch of 50	0.25 μL	$410	δ²H = —140.4 ‰ δ¹⁸O = +26.36 ‰ δ¹³C = —28.80 ‰
USGS85-0.15 μL	Olive oil from coastal desert, Peru in silver tube, batch of 50	0.15 μL	$410	δ²H = —158.6 ‰ δ¹⁸O = +22.00 ‰ δ¹³C = —29.74 ‰
USGS85-0.25 μL	Olive oil from coastal desert, Peru in silver tube, batch of 50	0.25 μL	$410	δ²H = —158.6 ‰ δ¹⁸O = +22.00 ‰ δ¹³C = —29.74 ‰
USGS86-0.15 μL	Peanut oil from tropical Vietnam in silver tube, batch of 50	0.15 μL	$410	δ²H = —207.4 ‰ δ¹⁸O = +18.76 ‰ δ¹³C = —30.63 ‰
USGS86-0.25 μL	Peanut oil from tropical Vietnam in silver tube, batch of 50	0.25 μL	$410	δ²H = —207.4 ‰ δ¹⁸O = +18.76 ‰ δ¹³C = —30.63 ‰
USGS87-0.15 μL	Corn oil from USA in silver tube, batch of 50	0.15 μL	$410	δ²H = —168.1 ‰ δ¹⁸O = +20.11 ‰ δ¹³C = —15.51 ‰
USGS87-0.25 μL	Corn oil from USA in silver tube, batch of 50	0.25 μL	$410	δ²H = —168.1 ‰ δ¹⁸O = +20.11 ‰ δ¹³C = —15.51 ‰
W-62001-0.15 μL	RSIL DI water in silver tube, batch of 50	0.15 μL each	$380	δ²H = —41.1 ‰ δ¹⁸O = —6.25 ‰
W-62001-0.25 μL	RSIL DI water in silver tube, batch of 50	0.25 μL each	$380	δ²H = —41.1 ‰ δ¹⁸O = —6.25 ‰
GFLES-1-0.15 μL	Water enriched in ²H in silver tube, batch of 50	0.15 μL each	$380	δ²H = +80.1 ‰ δ¹⁸O = —6.25 ‰ δ¹⁷O = —3.32 ‰
GFLES-1-0.25 μL	Water enriched in ²H in silver tube, batch of 50	0.25 μL each	$380	δ²H = +80.1 ‰ δ¹⁸O = —6.25 ‰ δ¹⁷O = —3.32 ‰
GFLES-2-0.15 μL	Water enriched in ²H in silver tube, batch of 50	0.15 μL each	$380	δ²H = +159.9 ‰ δ¹⁸O = —6.21 ‰ δ¹⁷O = —3.3 ‰
GFLES-2-0.25 μL	Water enriched in ²H in silver tube, batch of 50	0.25 μL each	$380	δ²H = +159.9 ‰ δ¹⁸O = —6.21 ‰ δ¹⁷O = —3.3 ‰
GFLES-3-0.15 μL	Water enriched in ²H in silver tube, batch of 50	0.15 μL each	$380	δ²H = +280.2 ‰ δ¹⁸O = —6.14 ‰ δ¹⁷O = —3.28 ‰
GFLES-3-0.25 μL	Water enriched in ²H in silver tube, batch of 50	0.25 μL each	$380	δ²H = +280.2 ‰ δ¹⁸O = —6.14 ‰ δ¹⁷O = —3.28 ‰
GFLES-4-0.15 μL	Water enriched in ²H in silver tube, batch of 50	0.15 μL each	$380	δ²H = +399.8 ‰ δ¹⁸O = —6.08 ‰ δ¹⁷O = —3.25 ‰
GFLES-4-0.25 μL	Water enriched in ²H in silver tube, batch of 50	0.25 μL each	$380	δ²H = +399.8 ‰ δ¹⁸O = —6.08 ‰ δ¹⁷O = —3.25 ‰
IAEA-604-0.15 μL	Water enriched in ²H in silver tube, batch of 50	0.15 μL each	$380	δ²H = +799.9 ‰ δ¹⁸O = —5.86 ‰ δ¹⁷O = —3.2 ‰
IAEA-604-0.25 μL	Water enriched in ²H in silver tube, batch of 50	0.25 μL each	$380	δ²H = +799.9 ‰ δ¹⁸O = —5.86 ‰ δ¹⁷O = —3.2 ‰
NBS 1	Glass ampoule of steam condensate from Potomac River water	50 mL	$299	δ²H = —47.1 ‰ δ¹⁸O = —7.91 ‰
NBS 1a	Glass ampoule of snow meltwater from Yellowstone, Wyoming	50 mL	$299	δ²H = —183.2 ‰ δ¹⁸O = —24.36 ‰
W-64444-S	Set of 8 ampoules having 7 mL of water per ampoule	56 mL	$142	δ²H = —399.1 ‰ δ¹⁸O = —51.14 ‰
W-67400-S	Set of 8 ampoules having 7 mL of water per ampoule	56 mL	$142	δ²H = +1.2 ‰ δ¹⁸O = —1.97 ‰
W-43152	Water, 50 mL in glass ampoule	50 mL	$80	δ²H = —110.4 ‰ δ¹⁸O = —14.11 ‰
W-115135A	Water, 50 mL in glass ampoule	50 mL	$80	δ²H = —53.2 ‰ δ¹⁸O = —8.52 ‰
W-115143A	Water, 50 mL in glass ampoule	50 mL	$80	δ²H = —4.8 ‰ δ¹⁸O = —1.19 ‰

Additional Services

Reference Number	Description of Service	Price
Cal-δ²H	Calibration of user provided water for δ²H relative to VSMOW-SLAP	$1,180
Cal-δ¹⁸O	Calibration of user provided water for δ¹⁸O relative to VSMOW-SLAP	$1,180
LIMS	LIMS database modification requests	$200 per hour