RETSCH는 회전식 및 분리식 시료 분배기를 제공합니다. 시료의 각 분획 특성이 대량 원료의 특성과 정확히 일치 하도록 투입된 고체 시료를 매우 정확하게 분배합니다.
투입시료재질 및 장비구성에 따라 차이가 있음
Sieving is cost effective for particle sizes greater than 75 μ, although the technique can be used for some materials of smaller size if the method can be validated. Assuming the relevant standards and clean, wellmaintained equipment that conforms to the standards are used, sieving can provide an accurate and reproducible measure of particle size distribution within a sample.
SAMPLE PREPARATION IS NOT AN exact science; laboratory sub-sampling and sample splitting are prone to errors. These errors are due to heterogeneity either in the composition of the material, or in the non-random particle size distribution, which usually occurs as a result of gravitational forces. Any samples used for analytical testing must accurately reflect the composition of the original bulk material. If the initial particle size of the bulk material is too large, obtaining a representative sample is virtually impossible. (...)
