Sampling ladle used

Sampling techniques for propellant mixtures should be performed rapidly to prevent vaporization of any of the propellants. Some techniques include using prechilled cans, dipping with ladles, and crimping on the spot. Condensation of moisture onto the container and into the propellant must also be considered. 

Urine samples from greyhoimds generally used, e.g. a net held on a met[Pg.89]

Free-fall tumbler mixer Subsampler A ladle in the lid of the mixer collects a good representative sample Large/small Can be used with fines present Representative sample produced in a short time period ... 

This can be used if fines are present in a sample. A sample container is mounted with a ladle in its lid and after a short period of tumbling, it contains a representative sample of the powder as a result of the chaotic conditions created inside the mixer. ... 

---