Standards Development

Scope

This document specifies a test method which is intended to determine the fogging characteristics of synthetic PVC and polyurethane leathers that are used as trim materials in the interior of motor vehicles.

The method may also be applicable to fluid, pasty, powdered or solid raw materials which are the basis for such trim materials or from which the materials are manufactured. The method may also be applicable to other materials and finished products.

Purpose

There is no ISO standard that covers PVC or synthetic leather as the materials to determine glass fogging within its scope. A new IS for the fogging test method using PVC and synthetic leather is needed.

At elevated cabin temperatures, substances volatilized from surface materials (PVC, synthetic leather etc.) can condense and adhere to the glass surface. This is referred to as fogging. Plasticizers and additives used in PVCs and Synthetic leather of vehicle interior parts are considered the main cause of glass fogging.

As fabrication technology continues to evolve, more low-cost PVCs and synthetic leathers are being used as interior material, which use plasticizers to enhance texture.