The US SR-72A is a 5 1/2 inch diameter sieve ring made of
PVC plastic. These rings are for use in processing samples
that may be chemically altered if they are used with metal
sieves. USGS standards require these sieves when testing for
trace metals and inorganic analysis. The plastic sieve cloth
made of nylon, TEF, or polyethylene may be stretched over
rings and then fixed by means of nylon self-locking straps. If
worn or damaged, the cloth may be replaced. The cloth is
available from 5µm to 5500 µm mesh sizes. The US SR-72A
consists of one ring, five straps, and instructions for
installing the 8" square cloth.
The US SR-72 B and C are the top and bottom caps,
respectively, necessary for use with a laboratory shaker.
US-SR-72A Sieve Ring - 5 1/2" 0.5 lb.
US-SR-72B Top Cap - 8" 0.4 lb.
US-SR-72C Bottom Cap - 8" 0.4 lb.
Ring Straps (5) 0.2 lb.
|| 125µm Mesh
|| 0.1 lb.