Merck Calcium carbonate volumetric standard, secondary reference material for complexometr y, traceable to NIST Standard Reference Material (SRM) Certipur® Reag. USP

Merck Buffer solution (boric acid/potassium chloride/sodium hydroxide) colour coded: blue, trac eable to NIST and PTB pH 10.00 (25°C) Certipur®

Merck Certified sec. standard reference buffer solution potassium dihydrogen phosphate/di- sodium hydrogen phosphate, directly traceable to primary SRM from NIST/PTB pH(S) = 6.86 (25°C) Certipur®

Merck Lithium standard solution traceable to SRM from NIST LiNO in HNO 0.5 mol/l 1000 mg/l Li Certipur®

Fotometreler için Kontrol Solüsyonları(445/446 nm, 520/525 nm, ve 690 nm) Spectroquant®
1 adet/paket

Merck Buffer solutions traceable to SRM from NIST and PTB 10 x pH 4.01 (phthalate) 10 x pH .700 (phosphate) 10 x pH 10.00 (borate) pH 4.01/pH 7.00/pH 10.00(25°C) Certipur®

Merck Titanium standard solution traceable to SRM from NIST (NH ) TiF in H O 1000 mg/l Ti Certipur®

H₂O 'da 100 mg/L N
100 ml/paket

 H₂O 'da 2000 mg/L COD
100 ml/paket

Merck Zirconium ICP standard traceable to SRM from NIST ZrCl in HCl 7% 10000 mg/l Zr Cer tipur®

Merck Water standard 1% Certified Reference Material for Karl Fischer Titration 1 g 10 mg H O Aquastar®

Merck Strontium ICP standard traceable to SRM from NIST Sr(NO ) in HNO 2-3% 1000 mg/l Sr Certipur®

H₂O 'da 0.200 mg/L NO₂-N
100 ml/paket