Testing Standards and Testing Items

Material

Item

 Requirement

Standard

Olefin polymers

Homopolymer Polypropylene

Density

0.880-0.913

21 CFR 177.1520

Melting point

160-180

150-180 Metallocene Catalyzed Polypropylene

Extract-n-hexane

≤6.4%

Extract-xylene

≤9.8%

Olefin copolymers

Density

0.9/0.85*-1.00

Extract-n-hexane

≤5.5.%/2.6%*

Extract-xylene

≤30%

Polyethylene PE

Density

0.85-1.00

Extract-n-hexane

≤5.5/2.6*

Extract-xylene

≤11.3%