Glass beads for road materials new work item proposal

Issue 36 – March 2012

Standards New Zealand is seeking feedback on a new work item proposal on 'Glass beads for road materials – Determination of refractive index using secondary rainbow method'. The national member body of International Organization for Standardization (ISO) in China, SAC, has proposed this project to ISO.

The proposed Standard will provide:

  • a procedure to determine the refractive index of glass beads for road materials such as road marking materials and reflective films using the secondary rainbow method

  • an alternative test method to the current immersion method, which is a safe and more accurate test method for the refractive index of glass beads for road materials.

Standards New Zealand is consulting with key stakeholders in this area to determine New Zealand's response.

Published in international.