Hydrogen cyanide

Box of Colorimetric Tubes.  112SA = 3 year, 112SB = 2 year, 112SC = 1 year shelf life from date of manufacture.

112SA/SB are 10 tubes per box.  Each sample uses 1 tube. 10 samples total.

112SC is 2x 5 tubes per box.  Each sample uses 2 tubes.  5 samples total.

112SB/SC must be stored in a refrigerated place (0-10°C/32-50°F).