Standard reference materials and buffer solutions, CertiPUR®, Supelco®
: Merck
Materials for the precise calibration and monitoring of pH instruments.
- Traceable to NIST primary standard and PTB
- Maximum deviation ±0,003 pH units
- Measured in an independent accredited calibration laboratory for the pH value measurement (DKD-K-14301)
- M-Clarity quality level:MQ300
Certipur certified secondary Std Ref material
- pH valuePack typePk InfoPk
- Sodium hydrogen carbonate/sodium carbonateSodium hydrogen carbonate/sodium carbonate1.01962.000110,014 (25°C)Glass bottle for solids2×25 g21 * 2 items£364.00
- Potassium tetraoxalate dihydratePotassium tetraoxalate dihydrate1.01961.00251,681 (25°C)Glass bottle for solids1×25 g25 g1 * 25 g£236.00
- Potassium hydrogen phthalatePotassium hydrogen phthalate1.01965.00254,005 (25°C)Glass bottle for solids1×25 g25 g1 * 25 g£236.00
- Potassium hydrogen tartratePotassium hydrogen tartrate1.01963.00253,639 (25°C)Glass bottle for solids1×25 g25 g1 * 25 g£177.00
- Disodium tetraborate decahydrateDisodium tetraborate decahydrate1.01964.00259,184 (25°C)Glass bottle for solids1×25 g25 g1 * 25 g£236.00
- Potassium dihydrogen phosphate/ disodium hydrogen phosphate (2×25 g)Potassium dihydrogen phosphate/ disodium hydrogen phosphate (2×25 g)1.01960.00016,863/7,416 (25°C)Glass bottle for solids2×25 g21 * 2 items£464.00
CertiPUR cert. sec standard ref solutions
- pH valuePack typePk InfoPk
- Disodium tetraborate decahydrateDisodium tetraborate decahydrate1.07203.01059,184 (25°C)Plastic bottle5×100 ml51 * 5 items£206.00
- Potassium dihydrogen phosphate/ disodium hydrogen phosphatePotassium dihydrogen phosphate/ disodium hydrogen phosphate1.07202.01056,863 (25°C)Plastic bottle5×100 ml51 * 5 items£206.00
- Potassium tetraoxalate dihydratePotassium tetraoxalate dihydrate1.07204.01051,681 (25°C)Plastic bottle5×100 ml51 * 5 items£206.00
- Potassium hydrogen phthalatePotassium hydrogen phthalate1.07200.01054,005 (25°C)Plastic bottle5×100 ml51 * 5 items£206.00
- Potassium dihydrogen phosphate/ disodium hydrogen phosphatePotassium dihydrogen phosphate/ disodium hydrogen phosphate1.07205.01057,416 (25°C)Plastic bottle5×100 ml51 * 5 items£206.00