产品说明
一般描述
Certipur® buffer solution [di-sodium hydrogen phosphate/potassium dihydrogen phosphate buffer; pH 6.88 (20 ℃)] is intended for use as a calibration standard for pH instruments or pH electrodes or as a control sample for measuring the pH value.
The ready-to-use Certipur® buffer solutions are prepared gravimetrically in our ISO/IEC 17025 accredited calibration laboratory from high-purity salts, acids and bases diluted in high-purity water. All balances are regularly calibrated with analytical weight sets traceable to primary standard reference materials from NIST and PTB. The pH-value is measured to the highest precision using a combined glass electrode after 5-point calibration (according to DIN 19268) against reference buffer solutions (according to DIN 19266, IUPAC, NIST, Ph.Eur. and USP).
特点和优势
法律信息
CERTIPUR is a registered trademark of Merck KGaA, Darmstadt, Germany
产品性质
| 质量水平 | 300 |
| 等级 | certified reference material |
| agency | traceable to NIST traceable to PTB |
| 产品线 | Certipur® |
| 组成 | di-sodium hydrogen phosphate/potassium dihydrogen phosphate |
| pH值(酸碱度) | 6.88 (20 ℃) |
| application(s) | environmental food and beverages general analytical industrial qc pharmaceutical |
| 格式 | mixture |
| 储存温度 | 15-25℃ |
安全信息
| 储存分类代码 | 12 - Non Combustible Liquids |
| WGK | nwg |
| 闪点(F) | Not applicable |
| 闪点(C) | Not applicable |
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