What tool can be used to remove wedged particles from sieves?

The use of a putty knife and dowel rod for removing wedged particles from sieves is effective due to their specific design and functionality. A putty knife has a flexible, flat blade that can gently scrape along the sieve surface, helping to dislodge particles without damaging the sieve mesh. The dowel rod can serve as a support tool that allows the technician to apply even pressure while maneuvering the putty knife, ensuring thorough cleaning.

This approach is particularly useful because it minimizes the risk of altering the sieve’s structural integrity, which is crucial for maintaining accuracy in particle size analysis. Additionally, using these tools together can effectively handle various types of materials that may get stuck in the sieve, improving the efficiency of the cleaning process.

In contrast, while brushes can be effective to some extent, they may not reach as deep into the mesh to remove tightly wedged particles. A vacuum might be useful for collecting loose debris, but it may not suffice for deeply embedded particles. A scraper could cause damage to the sieve if not used carefully, and it typically lacks the flexibility required for effective cleaning compared to the combination of a putty knife and dowel rod.