RETSCH 의 "주변 기기" 제품들은 분쇄기, 조 크러셔 및 분체기와 함께 시료 준비를 최적화하고 지원합니다. 제품들은 더 큰 효율성으로 재현 가능한 과정을 제공하고 다루기 아주 편한 특성을 갖습니다.
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. (...)
