Merck 107294 Buffer solution traceable to SRM...
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Kullanılabilirlik: Stokta kalmadı
Katalog No: 119811.0500
Marka: Merck
Synonyms: Nitrate standard for aqueous matrices ready for use
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Açıklama | |
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Katalog Numarası | 119811 |
Eş anlamlı | Nitrate standard for aqueous matrices ready for use |
Ürün Bilgisi | |
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HS Kodu | 2834 29 80 |
Quality Level | MQ100 |
Fizikokimyasal Bilgiler | |
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Yoğunluk | 1.00 g/cm3 (20 °C) |
pH Değeri | 6 (H₂O, 20 °C) |
Özellikler | |
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Concentration β (NO₃⁻) | 990 - 1010 mg/l |
Determination method: Alkalimetric titration. The content of this solution was determined with sodium hydroxid standard solution 0.1 mol/l .The sodium hydroxide standard solution 0.1 mol/l is adjusted by hydrochloric acid standard solution 0.1 mol/L.The hydrochloric acid standard solution is standardized and traceable to volumetric standard tris(hydroxymethyl)aminomethane (article number 1.02408). The expanded measurement uncertainty is ± 1 % (k=2 coverage factor for 95% coverage probability). The certified value is traceable to primary standard NIST SRM 723 (NIST: National Institute of Standards and Technology, USA) by means of volumetric standard tris(hydroxymethyl)aminomethane, measured in the accredited calibration laboratory of Merck KGaA, Darmstadt, Germany in accordance to DIN EN ISO/IEC 17025. |