Refractive index standard kit 1 2 2 4-Trimethyl-pentane/ water traceable to SRM from NIST and PTB n (20°C)= 1 3915 CertiPUR

Buffer (boric acid/potassium chloride/sodium 30 Xhydroxide) traceable to SRM from NIST and PTB pH 10.00 (25°C) CertiPUR — محلول

1.99004.0001

TRIS(HYDROXYMETHYL)AMINOMETHANE VOLUMETR

1.02408.0083

Buffer (boric acid/potassium chloride/sodium hydroxide) coloured: blue traceable to SRM from NIST and PTB pH 9.00 (20°C) CertiPUR — محلول

1.09476.0500

دی‌هیدروژن فسفات پتاسیم (بافر stock محلول) 1/15 mol/l — محلول

1.04875.1000

Zinc secondary for complexometry traceable to NIST SRM CertiPUR — استاندارد حجم‌سنجی، ماده مرجع

1.02409.0100

دی‌کرومات پتاسیم secondary for redox titration traceable to NIST SRM CertiPUR — استاندارد حجم‌سنجی، ماده مرجع

1.02403.0080

پتاسیم یدات SE — استاندارد حجم‌سنجی

1.02404.0103

Buffer (Potassium hydrogen phthalate) traceable to SRM from NIST and PTB pH 4.01 (25°C) CertiPUR — محلول

1.09406.4000