9 Scientific apparatus and instruments, namely, sieves and sieve shakers being machines for testing coffee, grain, stones, diamonds, sand, soil, cement, coal, seeds, wheat, cereal, nuts and pharmaceuticals for scientific purposes, testing, sample processing and particle analysis; laboratory equipment, namely, sieves and sieve shakers being machines for testing coffee, grain, stones, diamonds, sand, soil, cement, coal, seeds, wheat, cereal, nuts and pharmaceuticals for scientific purposes, testing, sample processing and particle analysis; structural parts and fittings therefor