Concentration 1,000 +/- 10 ug/ml Matrix: 5% Hydrochloric acid NIST Traceable

Concentration 10,000 +/- 100 ug/ml Matrix: 5% Nitric acid NIST Traceable

Concentration 10,000 +/- 100 ug/ml Matrix: 5% Nitric acid NIST Traceable

100 ppm each element in 20% Hydrochloric Acid. Gold 100 +/- 1 ug/mL Iridium 100 +/- 1 ug/mL Osmium 100 +/- 1 ug/mL Palladium 100 +/- 1 ug/mL Platinum 100 +/- 1 ug/mL Rhenium 100 +/- 1 ug/

Concentration 10,000 +/- 100 ug/ml Matrix: 5% Nitric acid NIST Traceable

100 ppm each element in 5% Nitric Acid. Ce 100 ug/ml Dy 100 ug/ml Er 100 ug/ml Eu 100 ug/ml Gd 100 ug/ml Ho 100 ug/ml La 100 ug/ml Lu 100 ug/ml Nd 100 ug/ml<

100 ppm each element in 5% hydrochloric acid with a trace of HF. Aluminum 100 +/- 1 ug/mL Boron 100 +/- 1 ug/mL Chromium 100 +/- 1 ug/mL Hafnium 100 +/- 1 ug/mL Molybdenum 100 +/- 1 ug/mL

NFPA#: 1-0-1 Specific Gravity: 1.010 AA, colorimetric or volumetric standard

Concentration 1,000 +/- 10 ug/ml Matrix: 20% Hydrochloric acid NIST Traceable

Concentration 1,000 +/- 10 ug/ml Matrix: 20% Hydrochloric acid NIST Traceable

Concentration 1,000 +/- 10 ug/ml Matrix: 5% Nitric acid NIST Traceable

Acid-base titrimetry

Concentration 1,000 +/- 10 ug/ml Matrix: 5% Nitric acid NIST Traceable

Concentration 1,000 +/- 10 ug/ml Matrix: <5% HNO3 NIST Traceable

Concentration 1,000 +/- 10 ug/ml Matrix: 5% Nitric acid w/ tr HF NIST Traceable

Concentration 1,000 +/- 10 ug/ml Matrix: 5% Nitric acid NIST Traceable

Concentration 1,000 +/- 10 ug/ml Matrix: <5% HCl NIST Traceable

Concentration 1,000 +/- 10 ug/ml Matrix: 5% Nitric acid NIST Traceable

Concentration 10,000 +/- 100 ug/ml Matrix: 20% Hydrochloric acid NIST Traceable

Concentration 1,000 +/- 10 ug/ml Matrix: 5% Nitric Acid NIST Traceable

Concentration 10,000 +/- 100 ug/ml Matrix: 5% Nitric acid w/ trace HF NIST Traceable

AA, colorimetric or volumetric standard. Concentration 2 ug/ml Matrix: <5% HNO3 NIST Traceable

Concentration 10,000 +/- 100 ug/ml Matrix: 5% Nitric acid NIST Traceable

Concentration 10,000 +/- 100 ug/ml Matrix: 5% Nitric acid NIST Traceable

Concentration (as SiO₂) 1,000 +/- 10 ug/ml Matrix: Na₂SiO₃, water

Concentration 1,000 +/- 10 ug/ml Matrix: 5% Nitric acid NIST Traceable

AA, colorimetric or volumetric standard. Concentration 1,000 +/- 10 ug/ml Matrix: 5% Nitric acid w/ trace HF NIST Traceable

AA, colorimetric or volumetric standard Concentration 5 ug/ml Matrix: <5% HNO₃ NIST Traceable

Concentration 1,000 +/- 10 ug/ml Matrix: 5% Nitric acid NIST Traceable

Concentration 1,000 +/- 10 ug/ml Matrix: 5% Nitric acid NIST Traceable

Concentration 1,000 +/- 10 ug/ml Matrix: 5% Nitric acid NIST Traceable