NDARD

BEGINNING DATE
FOR COMMENT:

20 February 2006
CLOSING DATE
FOR COMMENT:

3 April 2006

Methods for sampling and analysing timber
preservatives and preservative-treated timber

Part 4: Analysis methods for determination of
preservative solution concentration
(Revision of AS/NZS 1605:2000 (in part))
(To be AS/NZS 1605.4)

COPYRIGHT DR
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Combined Postal Ballot/ Draft for Public Comment
Australian/New Zealand Standard
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DR06082-7380-1605.4.doc - 02/02/2006 15:20:23
Draft for Public Comment
STANDARDS AUSTRALIA/STANDARDS NEW ZEALAND
Committee TM-006Timber Preservation and Durability

DRAFT
Australian/New Zealand Standard
Methods for sampling and analysing timber preservatives and preservative-
treated timber
Part 4: Analysis methods for determination of preservative solution concentration
(Revision of AS/NZS 1605:2000 (in part))
(To be AS/NZS 1605.4)


Please note that this document is currently being balloted by the committee and the results
of the postal ballot will be contingent on public comment received.
Comment on the draft is invited from people and organizations concerned with this subject.
It would be appreciated if those submitting comment would follow the guidelines given on
the inside front cover.
This document is a draft Australian/New Zealand Standard only and is liable to alteration in
the light of comment received. It is not to be regarded as an Australian/New Zealand
Standard until finally issued as such by Standards Australia/Standards New Zealand.



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PREFACE
This Standard was prepared by the Joint Standards Australia/Standards New Zealand
Committee TM-006, Timber Preservation and Durability, to supersede, AS/NZS 1605:2000
(in part).
The objective of this Standard is to set out a series of methods for sampling and analysing
timber preservatives and preservative-treated timber.
This revision separates the current AS/NZS 1605 into a four-part series as follows:
AS/NZS
1605
Methods for sampling and analysing timber preservatives and preservative-treated
timber
1605.1 Part
1: General requirements, sampling, and determination of sapwood and
heartwood presence
1605.2 Part 2: Determination of preservative penetration by spot tests
1605.3 Part 3: Analysis methods for determination of preservative retention (this
Standard)
1605.4 Part 4: Analysis methods for determination of preservative solution concentration
The preservatives approved for use and incorporated in the AS/NZS 1604 series are
required to be accompanied by analytical methods for their determination, which are
incorporated in the AS/NZS 1605 series.
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CONTENTS


Page
SECTION 1 SCOPE AND GENERAL
1.1 SCOPE......................................................................................................................... 6
1.2 APPLICATION ........................................................................................................... 6
1.3 REFERENCED DOCUMENTS................................................................................... 6
1.4 DEFINITIONS............................................................................................................. 7
1.5 PREPARATION OF PRESERVATIVE LIQUIDS AND SOLUTIONS FOR
ANALYSIS.................................................................................................................. 7
SECTION 2 DETERMINATION OF COPPER, HEXAVALENT CHROMIUM, AND
ARSENIC IN CCA PRESERVATIVE SOLUTIONS
2.1 PRINCIPLE ................................................................................................................. 9
2.2 REAGENTS ................................................................................................................ 9
2.3 PROCEDURE.............................................................................................................. 9
2.4 CALCULATIONS OF THE PERCENTAGE OF METALS ...................................... 10
SECTION 3 DETERMINATION OF BORON IN PRESERVATIVE SOLUTION
3.1 PRINCIPLE ............................................................................................................... 11
3.2 REAGENTS .............................................................................................................. 11
3.3 PROCEDURE............................................................................................................ 11
3.4 CALCULATIONS .................................................................................................... 12
SECTION 4 DETERMINATION OF FLUORIDE IN PRESERVATIVE SOLUTION BY
ION-SELECTIVE ELECTRODE
4.1 PRINCIPLE ............................................................................................................... 13
4.2 REAGENTS .............................................................................................................. 13
4.3 PROCEDURE............................................................................................................ 13
4.4 CALCULATIONS .................................................................................................... 14
SECTION 5 DETERMINATION OF PENTACHLOROPHENOL IN PRESERVATIVE
SOLUTIONS
5.1 PRINCIPLE ............................................................................................................... 15
5.2 REAGENTS .............................................................................................................. 15
5.3 PROCEDURE............................................................................................................ 15
5.4 CALCULATIONS .................................................................................................... 15
SECTION 6 DETERMINATION OF DIDECYLDIMETHYLAMMONIUM CHLORIDE
IN ACQ SOLUTIONS
6.1 PRINCIPLE ............................................................................................................... 16
6.2 REAGENTS .............................................................................................................. 16
6.3 STANDARDIZATION OF SODIUM TETRAPHENYLBORON SOLUTION ......... 16
6.4 ANALYSIS PROCEDURE........................................................................................ 16
6.5 CALCULATIONS .................................................................................................... 17
SECTION 7 DETERMINATION OF ORGANO-CHLORINE INSECTICIDES IN
PRESERVATIVE TREATMENT SOLUTIONS
7.1 PRINCIPLE ............................................................................................................... 18
7.2 REAGENTS .............................................................................................................. 18
7.3 PROCEDURE............................................................................................................ 18
7.4 CALCULATIONS .................................................................................................... 19 DR
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SECTION 8 DETERMINA