HY US 01 Introduction.qxp - Hydrotech

GW 12 x 40 Granular Activated Carbon
Specifications
Mesh Size, U.S. Sieve Series .....................12 x 40
Larger than 12 Mesh, Max. %.............................5
Smaller than 40 Mesh, Max. %...........................5
Mean Particle Diameter, mm .....................0.9 - 1.1
Iodine Number, Min. ..........................................850
Methylene Blue Number, Min. ...........................200
Abrasion Number, Min.........................................75
Ash, Max. % ....................................................11.0
Moisture as Packed, Max. % .............................2.0
Safety Message
Wet activated carbon preferentially removes oxygen
from air. In closed or partially closed containers and
vessels, oxygen depletion may reach hazardous
levels. If workers are to enter a vessel containing
carbon, appropriate sampling and work procedures
for potentially low oxygen spaces should be followed,
including all applicable federal and state
requirements.
96 Hydrotech