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

Merck Buffer solution (potassium hydrogen phthalate), traceable to SRM from NIST and PTB p H 4.01 (25°C) Certipur®

H₂O 'da 200 mg/L NO₃-N
100 ml/paket

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

Merck Beryllium standard solution Be O(C H O ) in HNO 0.5 mol/l 1000 mg/l Be Certipur®

0.5 mol/l 1000 mg/L K
500 ml/paket

H₂O 'da 50000 mg/L COD
100 ml/paket

H₂O 'da 0.050 mg/L Mn
100 ml/paket

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

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

1000 mg/L B
500 ml/paket

Merck Tungsten standard solution traceable to SRM from NIST (NH ) WO in H O 1000 mg/l W Certipur®

Merck Chromium ICP standard traceable to SRM from NIST Cr(NO ) in HNO 2-3% 10000 mg/l Cr Certipur®