Supplier Page from Thermo Fisher Scientific for Potassium hydrogen iodate, primary standard, ACS, 99.95-100.05%
Gadolinium, AAS standard solution, Specpure:r, Gd 1000µg/mL from Thermo Fisher Scientific
Potassium chloride, 0.010M, Conductivity Standard from Thermo Fisher Scientific
Sulfur in Heavy Mineral Oil standard solution, Specpure:r, 1500µmg/g (0.15%) from Thermo Fisher Scientific
Sulfur in Light Mineral Oil standard solution, Specpure:r, 1,000µmg/g (0.10%) from Thermo Fisher Scientific