noncombustibles
Refuse to catch
Noncombustibles are materials that will not catch fire or burn under normal conditions.
The term appears most often in fire safety codes, building regulations, and waste disposal guidelines, where distinguishing between what can and cannot ignite matters for safety and sorting purposes.
Separate combustibles from noncombustibles before disposal.
The singular noncombustible works as both noun and adjective: Steel is a noncombustible material.
Hardened clay objects
- porcelainTranslucent fired clay
- aluminumElement thirteen
- tinElement fifty, Sn
- ashCombustion's powdery remains
slag · wire · appliances · cookware · fixtures · recycling · sorting · disposal
Fired clay building unit
- concreteSolid building mixture
- steelCarbon-hardened iron alloy
- stoneSolid earth fragment
- glassTransparent solid from sand
gypsum · plaster · ceramic · marble · granite · slate · cement · clay
Reinforced woven strand composite
- rockwoolFibrous stone-based insulation
- perliteHeat-popped volcanic glass
- vermiculiteExpandable insulating mineral
- cellulosePlant wall polysaccharide
ceramics
Hardened clay objects
ash · slag · wire · appliances · cookware · fixtures · recycling · sorting · disposal · landfill
brick
Fired clay building unit
glass · gypsum · plaster · ceramic · marble · granite · slate · cement · clay · terracotta
fiberglass
Reinforced woven strand composite
- rockwoolFibrous stone-based insulation
- perliteHeat-popped volcanic glass
- vermiculiteExpandable insulating mineral
noncombustiblescombustibles
Substances that burn
flammables · inflammables · kindling · fuel · incendiaries