Spray suspension. Prepare a suspension consisting of (1.5 ± 0.05 g) of silica powder (silica micro-powder having a mean particle size of 24 μm) per litre of tap water in a container, stirring vigorously. The water temperature shall be between 15 °C and 30 °C. The suspension shall be stirred continuously during the test procedure in such a way that the silica powder does not settle on the bottom of the container.
Appears in 5 contracts
Samples: Agreement Concerning the Adoption of Uniform Technical Prescriptions for Wheeled Vehicles, Agreement Concerning the Adoption of Uniform Technical Prescriptions for Wheeled Vehicles, Agreement Concerning the Adoption of Uniform Technical Prescriptions for Wheeled Vehicles
