产品说明
一般描述
The certified potassium hydrogen phthalate buffer solution is gravimetrically prepared using high-quality reagents at a registered calibration laboratory. It has a pH value of 4.01 at 25℃, measured using a combined glass electrode following a 5-point calibration method. The measurement is made in accordance with DIN 19268 using reference buffer solutions compliant to DIN 19266, NIST, IUPAC, Ph. Eur, and USP. The pH value of the buffer solution heavily depends on the temperature and therefore a constant temperature must be maintained during its use.
应用
The buffer solution is used as a standard in analytical procedures for the calibration of pH measuring instruments or pH electrodes and as a control for the measurement of pH of other solutions.
特点和优势
- Measured and qualified at an ISO/IEC 17025 and ISO 17034 accredited laboratory
- Directly traceable to secondary reference standard from NIST and primary certified reference standard from PTB
- Ready-to-use solution available in 30 mL sachets
- Accompanied with a detailed and batch-specific certificate of analysis (CoA) for an effective quality management system
- Product label follows the ISO Guide 31 and contains information about ordering number, article description, lot number, safety data, and expiry date
- Packaging material subjected to comprehensive stability studies as per ISO Guide 35
- Accurate up to +/- 0.02 at 25℃
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 |
| 产品线 | Certipur® |
| pH值(酸碱度) | 4.0 (25 ℃ in H2O) |
| application(s) | environmental food and beverages general analytical industrial qc pharmaceutical |
| 格式 | mixture |
| 储存温度 | 10-30℃ |
安全信息
| 储存分类代码 | 12 - Non Combustible Liquids |
| WGK | WGK 2 |
| 闪点(F) | Not applicable |
| 闪点(C) | Not applicable |
