This specification covers polypropylene materials, suitable for injection molding and extrusion, that include unreinforced polypropylene with natural color only, unfilled and unreinforced polypropylene, calcium carbonate filled polypropylene, glass reinforced polypropylene, polypropylene copolymers, and talc filled polypropylene. Polymers consist of homopolymer, copolymers, and elastomer compounded with or without the addition of impact modifiers (ethylene-propylene rubber, polyisobutylene rubber, and butyl rubber), colorants, stabilizers, lubricants, or reinforcements. Tests shall be conducted on each of the specimens to determine the required physical and mechanical properties of the materials. The specimens for the various materials shall conform to the following requirements: nominal flow rate; test specimen dimensions; tensile stress at yield; flexural modulus; Izod impact resistance; deflection temperature; and multiaxial impact ductile-brittle transition temperature.
1.1 Thisclassification system covers polypropylene materials suitable forinjection molding and extrusion. Polymers consist of homopolymer,copolymers, and elastomer compounded with or without the additionof impact modifiers, for example, ethylene-propylene rubber,polyisobutylene rubber, and butyl rubber, colorants, stabilizers,lubricants, or reinforcements.
1.2 Thisclassification system allows for the use of those polypropylenematerials that can be recycled, reconstituted, and reground,provided that: (1) the requirements as stated inthis classification system are met, and (2) the material has not been modified inany way to alter its conformance to food contact regulations orsimilar requirements. The proportions of recycled, reconstituted,and reground material used, as well as the nature and the amount ofany contaminant, cannot be practically covered in thisclassification system. It is the responsibility of the supplier andthe buyer of recycled, reconstituted, and reground materials toensure compliance. (See Guide D7209.)
1.3 Thevalues stated in SI units are to be regarded as standard. No otherunits of measurement are included in this standard.
Note1: The properties included in thisclassification system are those required to identify thecompositions covered. If other requirements are necessary toidentify particular characteristics important to specificapplications, these shall be designated by using the suffixes givenin Section 1.
1.4The following safety hazards caveat pertainsonly to the test methods portion, Section 13, of this specification: Thisstandard does not purport to address all of the safety concerns, ifany, associated with its use. It is the responsibility of the userof this standard to establish appropriate safety, health, andenvironmental practices and determine the applicability ofregulatory limitations prior to use.
Note2: This classification system andISO 19069-1 and -2 address the same subject matter, but differ intechnical content.
1.5This international standard was developed in accordance withinternationally recognized principles on standardizationestablished in the Decision on Principles for the Development ofInternational Standards, Guides and Recommendations issued by theWorld Trade Organization Technical Barriers to Trade (TBT)Committee.