biological sample bag / laboratory / waterproof
for biological samples, laboratory
Sodium thiosulfate sterile bags Whirl-Pak
Bags used for collecting samples of drinking water and
treated waters of swimming pools, sewage, etc.
These bags tend to stand on their own, they are pre-sterilized, they are
unbreakable, compact, with matte band for identification and closure
It is totally waterproof.
They contain 10mg sodium thiosulfate tablets inside for each
100ml of water.