ASTM D7447-08e1

Standard Practice for Symbolizing Adhesive Applications

SIGNIFICANCE AND USE
An adhesive symbol provides an efficient means of placing complete information about adhesives on engineering drawings. The joint is the basis of reference for the symbol to which the arrow line is pointed. The reference line of the symbol is used to designate the type of adhesive to be used, including information about its physical form, chemical technology family, requirements for surface preparation, application method (bead versus roll coat), and cure method. The optional tail (shown at left in Fig. 1) provides a place to include additional information about the adhesive that is not referenced in other notations.
Refer to Fig. 1 for an overview schematic of the adhesive symbol denoted by a mast supporting a circle with the letter “A” inside for adhesive. Detail behind each of the elements noted (for example, FORM, CHEM, APPL METH) can be found in corresponding tables in Section 5.
FIG. 1 Standard Locations of Elements of the Adhesive Symbol
SCOPE
1.1 This practice covers a standard symbol that may be used by the design-engineering community on engineering drawings to indicate a bonded assembly for any type of adhesive.
1.2 This design is based on criteria contained in ANSI/AWS A2.4 as well as ISO 15785.
1.3 The values given in SI units are to be regarded as the standard. The values in parentheses are for information only.
1.4 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.

General Information

• Status: Historical
• Publication Date: 30-Sep-2008
• ICS: 83.180 - Adhesives
• Technical Committee: D14 - Adhesives
• Drafting Committee: D14.60 - Adhesive Material Classification System

Relations

• Replaces: ASTM D7447-08 - Standard Practice for Symbolizing Adhesive Applications
• Effective Date: 01-Oct-2008

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
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Designation: D7447 − 08
StandardPractice for
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Symbolizing Adhesive Applications
This standard is issued under the fixed designation D7447; 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 (´) indicates an editorial change since the last revision or reapproval.
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´ NOTE—Table 3 was corrected editorially in April 2009.
1. Scope 3.2 Refer to Fig. 1 for an overview schematic of the
adhesivesymboldenotedbyamastsupportingacirclewiththe
1.1 This practice covers a standard symbol that may be used
letter “A” inside for adhesive. Detail behind each of the
bythedesign-engineeringcommunityonengineeringdrawings
elements noted (for example, FORM, CHEM, APPL METH)
to indicate a bonded assembly for any type of adhesive.
can be found in corresponding tables in Section 5.
1.2 This design is based on criteria contained inANSI/AWS
A2.4 as well as ISO 15785.
4. Elements of the Adhesive Symbol
1.3 The values given in SI units are to be regarded as the
4.1 The elements represented in Fig. 1 are explained in
standard. The values in parentheses are for information only.
greater detail in Tables 1-5 and Fig. 2.
1.4 This standard does not purport to address all of the
4.2 Fig. 3 illustrates an expanded view of the parameters
safety concerns, if any, associated with its use. It is the
detailed in the tables described in Tables 1-5 and Fig. 2.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
5. References and Other Notations
bility of regulatory limitations prior to use.
5.1 Symbols With References—When specifications,
2. Referenced Documents
processes, or other references are used with the adhesive
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symbol, the notation is placed in the tail (see “T” symbol in
2.1 ANSI/AWS Standard:
Fig. 1 or Fig. 3). This notation may reflect information about a
ANSI/AWS A2.4 Symbols for Welding and Nondestructive
particular manufacturer’s product or other pertinent data not
Testing
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contained in the symbol elements.
2.2 ISO Standard:
ISO15785 TechnicalDrawings—SymbolicPresentationand
5.2 Symbols Without References—Symbols may be used
Indication of Adhesive, Fold and Pressed Joints
without specifications, processes, or other references when:
5.2.1 A note appears on the drawing: “Unless otherwise
3. Significance and Use
designated, all adhesive bonds are to be made in accordance
3.1 An adhesive symbol provides an efficient means of
with Specification No .”
placing complete information about adhesives on engineering
5.2.2 The bonding procedure to be used is described else-
drawings. The joint is the basis of reference for the symbol to
where such as in shop instructions and process sheets: “Refer
which the arrow line is pointed. The reference line of the
to Instruction for bonding procedure.”
symbol is used to designate the type of adhesive to be used,
5.3 OrientationofBondJoint—The horizontal orientation is
including information about its physical form, chemical tech-
default (“parallel line” element should be omitted) or the
nology family, requirements for surface preparation, applica-
element is present only when either inclined or vertical:
tion method (bead versus roll coat), and cure method. The
5.3.1 If vertical orientation, display lines as “| |” or
optionaltail(shownatleftinFig.1)providesaplacetoinclude
5.3.2 If inclined orientation, display lines as “//.”
additional information about the adhesive that is not referenced
in other notations.
5.4 Symbol Attachments to the Reference Line:
5.4.1 Geometry of cross section of the dispensed bead style
[BEAD X-SECT] and
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This practice is under the jurisdiction of ASTM Committee D14 on Adhesives
5.4.2 An arrow-shaped element indicating surface applica-
and is the direct responsibility of Subcommittee D14.60 on Adhesive Material
Classification System.
tion of the adhesive [APP SURF] that may be shown posi-
Current edition approved Oct. 1, 2008. Published November 2008. DOI:
tioned as:
10.1520/D7447-08E01.
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5.4.2.1 Above line only—If adhesive is to applied to sub-
Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
4th Floor, New York, NY 10036, http://www.ansi.org. strate surface to which arrow is pointing,
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D7447 − 08
FIG. 1 Standard Locations of Elements of the Adhesive Symbol
TABLE 1 FORM TABLE 3 SURF PREP
(Adhesive Physical Forms) (Surface Preparation)
A
One-Part System 1C a. DETERGENT CLEANING (insert type)
B
Two-Part System 2C b. SOLVENT WIPE (insert type)
C
Film FIL c. CHEM
...