Tender For corrigendum : supply of personal dust sampler , gst on personal dust sampler , weighing balance capacity 0.0001 gm to 120gm response in 3 seconds , gst on weighing balance capacity 0.0001 gm to 120gm response in 3 seconds , filter 37mm - 1 packet consisting of 100 nos , gst filter 37mm - 1 packet consisting of 100 nos