Timber Preservation Quality Manual (TPQM)

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Timber Preservation Quality Manual (TPQM)
February 2005
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Purpose

• Manual Compliance
• To ensure all timber preservative plants
  carry out timber preservation and associated
  activities to the standards written in this
  Manual, NZS36402003 and other associated
  documents.

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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.

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Layout

• Minimum Requirements Detail the
  requirements of ISO90012000 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.

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TPQM 01 - 05

• Quality System Documents quality
  responsibilities and authorities i.e. site
  manager, production manager, technical officer,
  technical advisor.

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Site Quality Manual TPQM 05 - 08

• Purchasing Documents selection of chemical
  and timber suppliers and their ability to meet
  TPQM requirements i.e. grade, quality, etc.

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Procedures Manual TPQM 08 - 18

• Process Control (treatment plant).
• Inspection Testing.
• Control of Non Conforming Timber.
• Quality Records checklist provided.
• Internal Quality Audits checklist provided.
• Training.

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Appendix 1

• Sampling Requirements Test Methods
• Spot testing.
• Analytical testing methods
• TBTN, TBTO, IPBC, CCA Boron,
• Solution concentration methods.

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Appendix 2

• Sampling Schedules for all Hazard Classes.
• Internal testing requirements.

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Appendix 3

• Process Acceptance and Species Suitability
• Current processes.
• Process Approval.

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Appendix 4

• Examples of charge reconciliation sheets.

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Appendix 5

• Guidelines for Condition of Timber before
  Treatment.
• Free of decay.
• Moisture content.

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Appendix 6

• Steam Conditions for Bethell APM treatments.

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