AS 6669:2016

This Standard was prepared by the Australian members of the Joint Standards Australia/Standards New Zealand Committee TM-011, Engineered Timber Products, to supersede AS 6669—2007. After consultation with stakeholders in both countries, Standards Australia and Standards New Zealand decided to develop this Standard as an Australian Standard rather than an Australian/New Zealand Standard.

The objective of this Standard is to provide minimum performance requirements and specifications for the manufacture and application of plywood for use in the specific application of concrete formwork in Australia.

This Standard describes formwork plywood products, either overlaid or non-overlaid, that are suitable, subject to correct installation and design of the formwork, for providing a concrete surface finish meeting Classes 2, 3, 4 and 5 off-form finishes as specified in AS 3610.1, Formwork for concrete. Attention is drawn to the mandatory requirements of AS 3610.1 for the need to undertake test pours where colour control or surface finishes of Class 2 or better are specified.

Significant changes in this 2016 edition include:

(a) The alignment of characteristic structural properties for stress-grades with AS/NZS 2269.0:2012, Plywood—Structural, Part 0: Specifications.

(b) The alignment of the specified methods for the determination of stress-grades with AS/NZS 2269.0:2012, Plywood—Structural, Part 0: Specifications.

(c) Inclusion of new standard constructions to reflect latest product development and manufacturing practices.

(d) The inclusion of formaldehyde emission classes for formwork plywood.

Notes used in this Standard are of an advisory nature only and are used to give explanation or guidance to the user on recommended considerations or technical procedures, or to provide an informative cross-reference to other documents or publications. Notes to clauses in this Standard do not form a mandatory part for compliance with this Standard.

The terms ‘normative’ and ‘informative’ have been used in this Standard to define the application of the appendices to which they apply. A ‘normative’ appendix is an integral part of a Standard, where as an ‘informative’ appendix is only for information and guidance.

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