100 ppm each element. Al 100 ug/ml Sb 100 ug/ml As 100 ug/ml Ba 100 ug/ml Be 100 ug/ml Ca 100 ug/ml Cd 100 ug/ml Co 100 ug/ml Cr 100 ug/ml Cu 100 u

Concentration 1,000 +/- 10 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 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

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

Matrix: 5% nitric acid with trace tartaric acid. Ag 100 ug/ml Al 100 ug/ml As 100 ug/ml Ba 100 ug/ml Be 100 ug/ml Bi 100 ug/ml Ca 1000 ug/ml Cd 100 ug/ml Cr

Concentration 10,000 +/- 100 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: 5% Nitric Acid NIST Traceable

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

SnCl₂•2H₂O CAS#: 10025-69-1 F.W.: 225.63 For mercury determination

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

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

Fe(NO₃)₃•9H₂O CAS#: 7782-61-8 F.W.: 404.00 ASTM Reagent No. 148

AA, or colorimetric standard

Concentration 10,000 +/- 100 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

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

Concentration 10,000 +/- 100 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% HNO3 NIST Traceable

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

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