1. Scope

1.1 This classification system covers requirements for plasticized cellulose propionate thermoplastic compounds suitable for injection molding and extrusion. These compounds have a propionyl content of at least 38% and an acetyl content of not more than 9% and may or may not contain dyes and pigments. Recycled plastics based on cellulose acetate propionate are not covered in this classification system.

1.2 The values stated in SI units are to be regarded as the standard.

1.3 The following precautionary statement pertains only to the Test Methods portion, Section 11, of this classification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

D149 Test Method for Dielectric Breakdown Voltage and Dielectric Strength of Solid Electrical Insulating Materials at Commercial Power Frequencies

D256 Test Methods for Determining the Izod Pendulum Impact Resistance of Plastics

D257 Test Methods for DC Resistance or Conductance of Insulating Materials

D570 Test Method for Water Absorption of Plastics

D618 Practice for Conditioning Plastics for Testing

D635 Test Method for Rate of Burning and/or Extent and Time of Burning of Plastics in a Horizontal Position

D638 Test Method for Tensile Properties of Plastics

D790 Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials

D792 Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement

D883 Terminology Relating to Plastics

D1003 Test Method for Haze and Luminous Transmittance of Transparent Plastics

D1600 Terminology for Abbreviated Terms Relating to Plastics

D1729 Practice for Visual Appraisal of Colors and Color Differences of Diffusely-Illuminated Opaque Materials

D3641 Practice for Injection Molding Test Specimens of Thermoplastic Molding and Extrusion Materials

D3892 Practice for Packaging/Packing of Plastics

D4000 Classification System for Specifying Plastic Materials

D5740 Guide for Writing Material Standards in the Classification Format

D7209 Guide for Waste Reduction, Resource Recovery, and Use of Recycled Polymeric Materials and Products

E308 Practice for Computing the Colors of Objects by Using the CIE System

Keywords

cellulose acetate propionate; classification system; line callout; plastic; recycled; specification; Cellulosic plastics; Heating tests--plastics; Molding/extrusion compounds/materials--specifications; Thermoplastics--specifications;

ICS Code

ICS Number Code 83.140.99 (Other rubber and plastic products)

DOI: 10.1520/D1562-98

ASTM International is a member of CrossRef.