BWS-R-LABEL
Replacement Label Hydrogen (H₂)
BWS-H-LABEL
Replacement Label Hydrogen Sulfide (H₂S)
BWS-Z-LABEL
Replacement Label Hydrogen Cyanide (HCN)
BWS-A-LABEL
Replacement Label Ammonia (NH3)
BWS-N-LABEL
Replacement Label Nitric Oxide (NO)
BWS-D-LABEL
Replacement Label Nitrogen Dioxide (NO₂)