Merck Potassium dichromate volumetric standard, secondary reference material for redox titrati on, traceable to NIST SRM Certipur® Reag. USP

Merck Buffer solution (di-sodium hydrogen phosphate/potassium dihydrogen phosphate) traceable to SRM from NIST and PTB pH 6.88 (20° C) Certipur®

1000 ± 10 mg/L TOC
1 adet/ paket 100 ml

H₂O 'da 1.50 mg/L F
100 ml/paket

Merck Buffer Solution (boric acid/potassium chloride/sodium hydroxide) colour coded: yellow, tr aceable to NIST and PTB pH 10.00 (20°C) Certipur®

Merck Water standard oil Certified Reference Material for Karl Fischer Titration (oil matrix 15- 30 ppm H2O) Aquastar®

Merck Cesium standard solution traceable to SRM from NIST CsNO in HNO 0.5 mol/l 1000 mg/l Cs Certipur®

2 mol/l 1000 mg/L Au 
500 ml/paket

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

Merck Silicon ICP standard traceable to SRM from NIST SiO in NaOH 2 % 1000 mg/l Si Certipur®

Merck Buffer solution (citric acid/sodium hydroxide/hydrogen chloride), traceable to SRM from NIST and PTB pH 4.00 (20°C) Certipur®

H₂O 'da 2.00 mg/l NH₄-N
100 ml/paket

H₂O 'da 5.0 mg/L TOC 
100 ml/paket