GMW19

Description / Abstract: GMW19, 6th Edition, October 2020 - Polyoxymethylene Homopolymer, Heat Stabilized

Note: Nothing in this standard supercedes applicable laws and regulations.

Note: In the event of conflict between the English and domestic language, the English language shall take precedence.

Purpose/Material Description.

This specification describes the properties of heat stabilized, unfilled polyoxymethylene (acetal) homopolymer that is used in injected form for molded components.

Symbols.

The material abbreviation according to ISO 11469 is POM.

Applicability.

Clips, clamps, sliders, handles, fasteners, and various parts requiring lubricity that are not located within the refreshable air space of the vehicle interior.

Remarks.

The classification into groups is according to the different ranges of viscosity. The following types apply to this specification:

• H1: Low Melt Flow

• H2: Medium Low Melt Flow

• H3: Medium High Melt Flow

• H4: High Melt Flow

• H5: Very High Melt Flow

• H3P1: Medium High Melt Flow, Polymer Modified for Improved Impact

• H1P2: Low Melt Flow, Highly Polymer Modified for Improved Impact