Quality Control and Proficiency Samples

SPEX CERTIPREP LLC 3P HERBICIDES 2ML QC SAMPLE WS

NSI Lab Solutions Herbicides (WS)

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Non-distribution item offered as a customer accommodation; additional freight charges may apply.
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SPEX CERTIPREP LLC 3P TRACE METALS 30ML QC SAMPLE WS

NSI Lab Solutions Trace Metals 30mL (WS)

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Non-distribution item offered as a customer accommodation; additional freight charges may apply.
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SPEX CERTIPREP LLC 3P Trace Metals STND 2/PK

NSI Lab Solutions PEI-016 Trace Metals Drinking Water Proficiency Test; 2/PK

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Non-distribution item offered as a customer accommodation; additional freight charges may apply.
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SPEX CERTIPREP LLC 3P Minerals QC CRM 500 mL

NSI Lab Solutions QCI-136 Minerals QC Concentrate Certified Reference Material, 500 mL; 1/EA

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Non-distribution item offered as a customer accommodation; additional freight charges may apply.
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Sand, MilliporeSigma™

VeriSpec™ QC Standard 21, Ricca Chemical

CAS: 7697-37-2 Molecular Formula: HNO3 Molecular Weight (g/mol): 63.01 MDL Number: MFCD00011349 InChI Key: GRYLNZFGIOXLOG-UHFFFAOYSA-N PubChem CID: 944 ChEBI: CHEBI:48107 IUPAC Name: nitric acid SMILES: O[N+]([O-])=O