Raning M

Combustibility

Flammability

Examples

M0

Incombustible

Non-flammable

Bricks, ceramic …

M1

Combustible

Non-flammable

PVC, mineral tile for false ceiling …

M2

Combustible

Hardly flammable

Particle boards, wall carpet …

M3

Combustible

Moderately flammable

Wood, rubber flooring …

M4

Combustible

Highly flammable

Paper, polypropylene …

NC

Unclassified

Unclassified