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According to the US EPA criteria
U ICP-OES 233
Atomic Weight: 102
10 ppb is stable for 3 days in 1% HNO3 / LDPE container
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VARIAN CAL STANDARD #7, 500mL [PHRED-4-1L][ITSTEST1] According to the US EPAProduct Specifications Part #: VAR CAL 7 500ML Description: VARIAN CAL STANDARD #7, 500mL Matrix: 2% v v Nitric Acid tr Hydrofluoric Acid Every Inorganic Ventures CRM is sold in patented TCT packaging giving your product up to 3 years shelf life. Read more Analyte g mL Analyte g mL Al 5 As 5 Ba 5 Cd 5 Cr 5 Co 5 Cu 5 Pb 5 Mn 5 Mo 5 Ni 5 K 50 Se 5 Sr 5 Zn 5 Documentation: TCT Certificate OSHA SDS EU SDS Associated Certifications: ISO 17034 ISO 17025