Paper, paperboard, pulp and cellulosic nanomaterials - Determination of dry matter content by the chamber dryer method - Part 2: Suspensions of cellulosic nanomaterials
| Standard Number | PN-EN ISO 638-2:2022-09 |
|---|---|
| Organization |
Polish Committee for Standardization
|
| Level | National |
| Category | Test Method | Characterization | Measurement |
| Status |
|
This document specifies a chamber drying method for the determination of the dry matter content of cellulosic suspensions of nanomaterials. The procedure is applicable to cellulosic suspensions of nanomaterials that do not contain significant amounts of volatile materials at 105 °C ± 2 °C other than water. It is applicable, for example, to samples of cellulosic nanomaterial suspensions taken for chemical and physical tests in the laboratory, when simultaneous determination of the dry substance content is required.
NOTE This document specifies the total dry matter of a sample, including any dissolved solids. If only dissolved solids free cellulosic material is desired, the dissolved solids are removed prior to the dry matter measurement, eg by washing or dialysis, ensuring that all cellulosic material is retained.