Hazard Class 4 Flammable Solids

Type	Common Exapmples	Domestic		International	Domestic Mail Pub 52	Maximum Amount Permitted in Mail	Additional Information
Type	Common Exapmples	Air	Surface	International	Domestic Mail Pub 52	Maximum Amount Permitted in Mail	Additional Information
Flammable Matches	Book matches	N	Y	N	344.3b	344.22	Must be properly packaged.
Flammable Matches	Strike anywhere matches	N	N	N	344.21	None	Prohibited
Spontaneously Combustible	Iron oxide	N	Y	N	344.1b	344.22	ORM-D or mailable limited quantity only.
Dangerous When Wet	Aluminum powder, calcium, lithium, sodium	N	Y	N	344.1c	344.22	ORM-D or mailable limited quantity only.