GRESP

€180.00
Producing Laboratory: TERC
Availability: In stock
Water

GRESP (Greenland Summit Precipitation) has been prepared at the IAEA to provide a water quality control material to check the calibration by the VSMOW2 and SLAP2 international measurement standards. GRESP is certified for its hydrogen and oxygen stable isotopic composition, on a δ-scale as defined by the isotopic compositions of the two water international measurement standards VSMOW2 and SLAP2 and denoted with δ2H VSMOW-SLAP and δ18O VSMOW-SLAP.

AnalyteReference valueUnit

Combined standard uncertainty

(at 1 sigma level)

R/I/C
δ2H-258.00.4R
δ18O-33.400.04R

δ2H and δ18O reference values for the certified reference material GRESP and the associated combined standard uncertainties (1σ level; using a coverage factor of k=1), all expressed on the respective VSMOW-SLAP scale.
(R/I/C) Classification assigned to the property value for analyte (Recommended/Information/Certified)

Limit of distribution: 
Please note that distribution of GRESP is limited o 3 units within 3 years per end user. 

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