Merck Buffer solution (citric acid/sodium hydroxide) traceable to SRM from NIST and PTB pH 5.00 (25°C) Certipur®

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

1000 mg/L SO₄
500 ml/paket

H₂O 'da 100 mg/L N
100 ml/paket

Merck Arsenic ICP standard traceable to SRM from NIST H AsO in HNO 2-3% 1000 mg/l As Certipur®

0.5 mol/l 1000 mg/L Mn
100 ml/paket

Merck Potassium iodate volumetric standard, secondary reference material for iodometry, trace able to NIST SRM Certipur®

Merck Sodium hydrogen carbonate/sodium carbonate certified secondary standard reference material for Ph measurement; directly traceable to primary SRM from NIST/PTB pH(S) = 10.01 (25°C) Certipur®

Merck Beryllium ICP standard traceable to SRM from NIST Be O(C H O ) in HNO 2- 3% 1000 mg/l Be Certipur®

0.5 mol/l 1000 mg/L Pb
100 ml/paket

1000 mg/L NH₄ 
500 ml/paket

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

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