About this item
The ICP standard is manufactured and verified under Ultra’s ISO 9001 registered quality system. It is prepared from starting materials having a purity of 99.999% (where possible), high purity acids, and ASTM Type I water (18 megaohm).
It is traceable to NIST standard reference materials (SRM) whenever possible.
ULTRAgrade® documentation data includes elemental identity, trace metal impurities, and final element concentration by ICP; traceability data to NIST SRM by both wet chemical assay and ICP on final solution lot; and final solution density.
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