Nanotechnologies - Technical requirements for dynamic light scattering particle size analyzers

This document gives the principle of dynamic light scattering particle size analyzer, and specifies its performance, power supply voltage adaptability, environmental adaptability, safety and other aspects. It specifies the technical requirements for safety, mechanical structure, test conditions, etc., and describes the test methods for accuracy and repeatability. This document is applicable to the testing and inspection of particle size analyzers that measure the average particle size, particle size distribution and other parameters of nano- and submicron-sized particles. Testing, operation and maintenance.