Pembelian Bahan Bantu Certified Reference Material (CRM) ini adalah : PN. ELO-D7751-10 - Elements in Lubricating Oil Calibration Standards ASTM D7751, 7 Elements, 17 Standards, 100 mL each. Elements Include: Ca, Cl, Mg, Mo, P, S, Zn Concentrations Randomized : Ca @ Blank, 0.0020 - 0.4500 Wt.%, Cl @ Blank, 0.0010 - 0.0500 Wt.%, Mg @ Blank, 0.0200 - 0.4000 Wt.%, Mo @ Blank, 0.0040 - 0.0500 Wt.%, P @ Blank, 0.0200 - 0.2500 Wt.%, S @ Blank, 0.0050 - 2.0000 Wt.%, Zn @ Blank, 0.0400 - 0.2500 Wt.%
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