Name: Merck 109477 pH 7.00 (Di-Sodium Hydrogen pHospHate/Potassium Dihydrogen pHospHate), Colour: green Traceable To Srm From Nıst And Ptb pH 7.00 (20°C) Certipur® 500 ml - Donanım Cihaz
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Merck 109477 pH 7.00 (Di-Sodium Hydrogen pHospHate/Potassium Dihydrogen pHospHate), Colour: green Traceable To Srm From Nıst And Ptb pH 7.00 (20°C) Certipur® 500 ml

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Merck 109477 pH 7.00 (Di-Sodium Hydrogen pHospHate/Potassium Dihydrogen pHospHate), Colour: green Traceable To Srm From Nıst And Ptb pH 7.00 (20°C) Certipur® 500 ml
Catalogue Number	109477

Product Information
HS Code	3822 00 00

Physicochemical Information
Density	1.00 g/cm3 (20 °C)
pH value	7.0 (H₂O, 20 °C)
Solubility	(20 °C) soluble

Safety Information according to GHS
Storage class	10 – 13 Other liquids and solids
WGK	NWG not water endangering
Disposal	28 Aqueous solutions: Container D.

Storage and Shipping Information
Storage	Store at +15 °C to +25 °C.

Specifications
Specifications
pH-value (20 °C)	6.99 – 7.01
Measured with a combined glass electrode after 5-point calibration according to DIN 19268 (expanded measurement uncertainty +/-0.01) with ref.buffer solutions according to DIN 19266, prepared with primary reference materials, at the accredited laboratory DIN EN ISO/IEC 17025.
Deviations of pH ( Delta pH ) at various temperatures:
(0 °C)	+ 0.13
(5 °C)	+ 0.07
(10 °C)	+ 0.05
(15 °C)	+ 0.02
(20 °C)	+/- 0
(25 °C)	– 0.02
(30 °C)	– 0.02
(35 °C)	– 0.04
(40 °C)	– 0.05
(50 °C)	– 0.05
Traceable to primary reference materials from: NIST 189c, 188, 185h, 186 Ig, 186IIg, 187e PTB OX-179/10,TA-212/11,PHT-232/12,PHO-243/12,BO-211/11 NIST: National Institute of Standards and Technology PTB: Physikalisch-Technische Bundesanstalt

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