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Silver standard solution traceable to SRM from NIST AgNO₃ in HNO₃ 0.5 mol/l 1000 mg/l Ag Certipur®
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Environmental Reference Standards
1099470001 · Merck
Silicon standard 1000 mg Si, (SiCl₄ in 14% NaOH) Titrisol®
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1703500100 · Merck
Selenium ICP standard traceable to SRM from NIST SeO2 in HNO3 2-3% 1000 mg/l Se Certipur®
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5004600001 · Merck
Refractive index standard traceable to NIST, traceable to PTB, [α]/D 60°, Brix CERTIPUR®
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5004400001 · Merck
Refractive index standard traceable to NIST, traceable to PTB, [α]/D 40°, Brix CERTIPUR®
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