-
harmful:substance,
-
refrigerant:chemical,
-
atmospheric:compound,
-
organic:compound,
-
controlled:substance,
-
harmful:chemical,
-
industrial:compound,
-
refrigerant:fluid,
-
propellant:compound,
-
harmful:gas,
-
volatile:compound,
-
synthetic:chemical,
-
refrigerant:substance,
-
refrigerant:gas,
-
hazardous:material,
Category Nuances for hcfc:
-
harmful,
-
propellant,
-
refrigerant,
-
organic,
-
synthetic,
-
controlled,
-
volatile,
-
hazardous,
-
atmospheric,
-
industrial,
Simple Categories for hcfc: