whatman 226级定性过滤纸
特点：
1. 湿强定性滤纸（201.202）为了延长过滤寿命和便于操作，含有少量化学性质稳定的过滤剂（树脂）。
2. 适用于日常的常规检测（湿强定性滤纸不可用于凯氏定氮法测定）。
A general qualitative filter with creped surface. High filtration speed, faster than grade 202 and retain coarse particles gelatinous precipitates.
- High filtration speed
- Retains coarse or gelatinous particulates
- Unique crêped gray surface provides optical contrast for white or dark filtrates
Unique crêped gray surface provides optical contrast for white or dark filtrates. Widely used in industrial laboratories and students laboratories for routine filtration. Widely used in industrial laboratories and students laboratories for routine filtration.
The filter is wet-strengthened with a small amount of chemically stable resin to extend the life of the filter and improve handling. Normal qualitative applications will not introduce any significant impurities into the filtrate. However it is not recommended for Kjeldahl nitrogen analysis.
Reeve Angel products are designed for routine, repetitive applications for which an inexpensive product is acceptable, such as qualitative analysis. Reeve Angel products deliver as promised, every time.