产品说明
一般描述
A set of 3 certified buffer solutions of pH 4.01(phthalate), 7.00 (phosphate), and 10.00 (borate)? gravimetrically prepared at a registered calibration laboratory with high-quality reagents and water. The pH values of the buffers are measured using a combined glass electrode, following a 5-point calibration method. The measurements are made following DIN 19268 using reference buffer solutions compliant to DIN 19266, NIST, IUPAC, Ph. Eur, and USP. The pH values are strongly dependent on the temperature and therefore a constant temperature must be maintained during their use.
应用
They are used as standards to calibrate pH measuring instruments or pH electrodes and as controls to measure the pH of other solutions.
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® |
pH值(酸碱度) | 10.00(borate) 4.01 (25 ℃, phthalate) 7.00 (25 ℃, phosphate) |
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 | 10-13 - German Storage Class 10 to 13 |