ASTM D1413-07
(Test Method)Standard Test Method for Wood Preservatives by Laboratory Soil-Block Cultures
Standard Test Method for Wood Preservatives by Laboratory Soil-Block Cultures
SIGNIFICANCE AND USE
This test method is useful in the development of new wood preservatives and preservative systems by evaluating the minimum preservative retention to prevent decay under laboratory conditions. The results are used to facilitate target retentions in subsequent tests for effectiveness against termites (see Test Method D 3345) and in field stakes (see Test Method D 1758). The sections on Treatment and Preservative Permanence are referenced by other ASTM standards. The test method assumes that the test blocks exposed to certain conditions after treatment will achieve equilibrium, and will return to the same equilibrium after exposure to fungi. This assumption may lead to weight loss that is not due to decay. The test uses live cultures of fungal organisms that require careful colonization, storage, and feeding to remain viable strains.
SCOPE
1.1 This test method covers determination of the minimum amount of preservative that prevents decay of selected species of wood by selected fungi under optimum laboratory conditions.
1.2 The requirements for preparation of the material for testing and the test procedure appear in the following order:Section TitleSectionSummary of Test Method3Significance and Use4Apparatus5Reagents6Wood and Test Blocks7Test Fungi8Culture Media9Preparation of Test Cultures10Preparation and Impregnation of Test Blocks11Conditioning Treated Blocks12Preservative Permanence: Weathering Procedure13Stabilization of Treated Test Blocks and Placement in Culture Bottles14Incubation and Duration of Test15Handling Test Blocks After Exposure to Test Fungi16Calculation of Weight Losses17Evaluation of Test Results18Refining the Threshold19Report20Precision and Bias21Keywords22
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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Designation:D1413–07
Standard Test Method for
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Wood Preservatives by Laboratory Soil-Block Cultures
This standard is issued under the fixed designation D1413; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope D1758 Test Method of Evaluating Wood Preservatives by
Field Tests with Stakes
1.1 This test method covers determination of the minimum
D3345 Test Method for Laboratory Evaluation of Wood
amount of preservative that prevents decay of selected species
and Other Cellulosic Materials for Resistance to Termites
of wood by selected fungi under optimum laboratory condi-
D3507 Test Methods for Penetration of Preservatives in
tions.
Wood and for Differentiating Between Heartwood and
1.2 The requirements for preparation of the material for
Sapwood
testing and the test procedure appear in the following order:
E11 Specification for Wire Cloth and Sieves for Testing
Section Title Section
Purposes
Summary of Test Method 3
3
Significance and Use 4
2.2 Other Standards:
Apparatus 5
AWPA E-1-01 Testing Wood Preservatives by Soil Block
Reagents 6
Cultures
Wood and Test Blocks 7
Test Fungi 8
Culture Media 9
3. Summary of Test Method
Preparation of Test Cultures 10
3.1 Conditioned blocks of wood are impregnated with
Preparation and Impregnation of Test Blocks 11
Conditioning Treated Blocks 12
different concentration solutions of a preservative in water or
Preservative Permanence: Weathering Procedure 13
suitable organic solvent to produce a series of retentions of the
Stabilization of Treated Test Blocks and Placement in Culture 14
preservatives in the blocks. After periods of conditioning or
Bottles
Incubation and Duration of Test 15
weathering,theimpregnatedblocksareexposedtooneormore
Handling Test Blocks After Exposure to Test Fungi 16
strains of wood-destroying fungi, one fungus for each test
Calculation of Weight Losses 17
series. The minimum amount of preservative that in the
Evaluation of Test Results 18
Refining the Threshold 19
prescribed testing protects the impregnated blocks against
Report 20
decay by a given test fungus is defined as the threshold
Precision and Bias 21
retention for that organism. Failure to protect is evidenced by
Keywords 22
loss of wood from the treated wood blocks, as indicated by a
1.3 This standard does not purport to address all of the
loss in weight.
safety concerns, if any, associated with its use. It is the
3.2 Provision must be made for coordinated preparation of
responsibility of the user of this standard to establish appro-
the test cultures and for impregnation, conditioning, or weath-
priate safety and health practices and determine the applica-
ering and conditioning, of the test blocks.
bility of regulatory limitations prior to use.
4. Significance and Use
2. Referenced Documents
4.1 This test method is useful in the development of new
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2.1 ASTM Standards:
wood preservatives and preservative systems by evaluating the
D841 Specification for Nitration Grade Toluene
minimum preservative retention to prevent decay under labo-
D1193 Specification for Reagent Water
ratory conditions. The results are used to facilitate target
retentions in subsequent tests for effectiveness against termites
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(seeTest Method D3345) and in field stakes (seeTest Method
This test method is under the jurisdiction of ASTM Committee D07 on Wood
and is the direct responsibility of Subcommittee D07.06 on Treatments for Wood
D1758). The sections on Treatment and Preservative Perma-
Products.
nence are referenced by other ASTM standards. The test
Current edition approved April 1, 2007. Published April 2007. Originally
approved in 1949. Last previous edition approved in 2005 as D1413–05b.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
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Standards volume information, refer to the standard’s Document Summary page on Available from American Wood-Preservers’ Association (AWPA), P.O. Box
the ASTM website. 361784 Birmingham AL 35236 (www.awpa.com)
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D1413–07
method assumes that the test blocks exposed to certain condi- block during initial drying and for convenient handling of the
tions after treatment will achieve equilibrium, and will return test blocks. Pin bars facilitate handling (see 7.2).
to the same equilibrium after exposure to fungi. This assump- 5.9 Weathering Apparatus:
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tion may lead to weight loss that is not due to decay.
...
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