{"id":126119,"date":"2024-10-19T05:32:59","date_gmt":"2024-10-19T05:32:59","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iso-204272024\/"},"modified":"2024-10-24T23:18:04","modified_gmt":"2024-10-24T23:18:04","slug":"bs-en-iso-204272024","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iso-204272024\/","title":{"rendered":"BS EN ISO 20427:2024"},"content":{"rendered":"
This document specifies sample preparation methods to determine the size distribution of separate particles of a single pigment or extender, which is dispersed in a liquid by application of a standardized dispersion procedure, using an ultrasonic device, shaker device or wet jet mill. The sample preparation methods described are optimized for measurements carried out with a particle sizing technique based on sedimentation. This technique relies on particle migration due to gravitation or centrifugal forces and requires a density contrast between the particles and the liquid phase.<\/p>\n
PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
---|---|---|---|---|---|---|---|
2<\/td>\n | undefined <\/td>\n<\/tr>\n | ||||||
9<\/td>\n | 4.1 Principles of ultrasonic dispersion 4.2 Principle of wet jet mill dispersion 4.3 Principle of shaker-based dispersion <\/td>\n<\/tr>\n | ||||||
10<\/td>\n | 5.1 Stokesian sedimentation analysis 5.2 Disk-type centrifuges 5.3 Cuvette-type centrifuges 5.4 Gravitation-based sedimentation methods <\/td>\n<\/tr>\n | ||||||
11<\/td>\n | 5.5 Centrifugal field-flow fractionation method <\/td>\n<\/tr>\n | ||||||
13<\/td>\n | 7.1 Procedure of ultrasonic dispersion using a probe-type sonicator <\/td>\n<\/tr>\n | ||||||
14<\/td>\n | 7.2 Procedure of ultrasonic dispersion using a bath-type sonicator 7.3 Procedure of shaker-based dispersion <\/td>\n<\/tr>\n | ||||||
15<\/td>\n | 8.1 General 8.2 Sampling for dispersion 8.3 Reagents <\/td>\n<\/tr>\n | ||||||
16<\/td>\n | 8.4 Recommendations for sample preparation <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Pigments and extenders. Dispersion procedure for sedimentation-based particle sizing of suspended pigment or extender with liquid sedimentation methods<\/b><\/p>\n |