ASTM D2921-98

Standard Test Method for Qualitative Tests for the Presence of Water Repellents and Preservatives in Wood Products

SCOPE
1.1 This test method describes simple qualitative field or laboratory tests to determine water repellency or the presence of chlorinated phenol  preservative chemicals in wood products that are specified to be water repellent preservative treated.
1.2 This standard does not purport to address all of the safety problems, 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.

General Information

• Status: Historical
• Publication Date: 09-May-1998
• ICS: 79.080 - Semi-manufactures of timber
• Technical Committee: D01 - Paint and Related Coatings, Materials, and Applications
• Drafting Committee: D01.52 - Factory Coated Wood Products

Relations

• Replaced By: ASTM D2921-98(2005) - Standard Test Method for Qualitative Tests for the Presence of Water Repellents and Preservatives in Wood Products
• Effective Date: 15-May-2005

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:D2921–98
Standard Test Method for
Qualitative Tests for the Presence of Water Repellents and
1,2
Preservatives in Wood Products
This standard is issued under the fixed designation D 2921; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope 4. Apparatus
1.1 This test method describes simple qualitative field or 4.1 Eyedropper, plastic squeeze bottle or similar means for
laboratory tests to determine water repellency or the presence metering drops of water.
of chlorinated phenol preservative chemicals in wood prod- 4.2 Flame Source, such as bunsen burner, butane torch, or
uctsthatarespecifiedtobewaterrepellentpreservativetreated. alcohol burner.
1.2 The values stated in inch/pound units are to be regarded 4.3 Copper Wire Coil Specimen Holder (or Other Suitable
as the standard. The values given in parentheses are for Copper Holder)—A suitable copper wire coil can be made by
information only. using a lead pencil as a mandrel to form a helix using copper
1 3
1.3 This standard does not purport to address all of the wire of about ⁄16 to ⁄32 in. (1.6 to 2.4 mm) in diameter. Leave
safety concerns, if any, associated with its use. It is the aspaceofapproximatelythediameterofthewirebetweeneach
responsibility of the user of this standard to establish appro- loop. The helix should be ⁄4 to 1 in. (19 to 25 mm) in length.
priate safety and health practices and determine the applica- Leave a pigtail of about 6 in. (152 mm) of wire at one end of
bility of regulatory limitations prior to use. the helix and form a loop of approximately 1 in. (25 mm) in
diameter to be used as a holder for the coil.
2. Referenced Documents
4.4 Sharp Knife.
2.1 U.S. Federal Specification:
5. Water Repellent Test
TT-W-572 Wood Preservative Water-Repellant
2.2 NIST Standard: 5.1 Place uncut wood items to be tested so that the end grain
262-63 Water Repellent Preservative Non-Pressure Treat- is exposed as a horizontal surface. If the end grain cannot be so
ment for Mill Work positioned, comparisons can be made on the flat grain but with
less definitive results.
3. Significance and Use
5.2 With an eye dropper, or similar device, allow several
3.1 Although chlorinated phenol-treated wood has become
drops of water to fall from about ⁄2in. (13 mm) on the end
less common due to environmental concerns, repellent-treated grain of the wood. Wait 5 min and then observe the degree of
wood is commonly specified in construction. This test method
penetration. With flat grain or vertical grain surfaces, waiting
provides a means to verify the presence of a significant level of periods of 10 to 15 min may be necessary.
water repellent protection.
5.3 Water drops that immediately flatten out, penetrate and
darken the wood, indicate that the wood has not been treated
with a water repellent.
This test method is under the jurisdiction of ASTM Committee D-1 on Paint
5.4 Water drops that “bead-up” and remain as spheres, with
and Related Coatings, Materials, andApplications and is the direct responsibility of
little or no color change or penetration, indicate that the wood
Subcommittee D01.52 on Factory-Coated Wood Products.
Current edition approved May 10, l998. Published August 1998. Originally has been treated with a water repellent. Water repellent
e1
published as D 2921 – 70. Last previous edition D 2921 – 88 (1993) .
preservatives, meeting Fed. Spec. TT-W-572 and NBS
An improved quantitative test method for water repellents is under develop-
Standard 262-63, impart suffici
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