Timber Preservation Quality Manual (TPQM) February 2005

Purpose  Manual Compliance To ensure all timber preservative plants carry out timber preservation and associated activities to the standards written in this Manual, NZS3640:2003 and other associated documents. Page 2

Purpose  Process Control To minimise failure by process control.  Site Specific To ensure a frame work of quality systems that each plant will build on and make specific to the treatment plant. Page 3

Layout  ‘Minimum Requirements’ Detail the requirements of ISO9001:2000 and the NZTPC that all plants should adhere to.  ‘Example of a System’ The manual details examples to meet the minimum requirements of each section. Page 4

TPQM  Quality System Documents quality responsibilities and authorities; i.e. site manager, production manager, technical officer, technical advisor. Page 5

Site Quality Manual TPQM  Purchasing Documents selection of chemical and timber suppliers and their ability to meet TPQM requirements; i.e. grade, quality, etc. Page 6

Procedures Manual TPQM  Process Control (treatment plant).  Inspection & Testing.  Control of Non Conforming Timber.  Quality Records – checklist provided.  Internal Quality Audits – checklist provided.  Training. Page 7

Appendix 1  Sampling Requirements & Test Methods  Spot testing.  Analytical testing methods TBTN, TBTO, IPBC, CCA & Boron,  Solution concentration methods. Page 8

Appendix 2  Sampling Schedules for all Hazard Classes.  Internal testing requirements. Page 9

Appendix 3  Process Acceptance and Species Suitability  Current processes.  Process Approval. Page 10

Appendix 4  Examples of charge & reconciliation sheets. Page 11

Appendix 5  Guidelines for Condition of Timber before Treatment.  Free of decay.  Moisture content. Page 12

Appendix 6  Steam Conditions for Bethell & APM treatments. Page 13