ASTM D5040-90(2005)
(Test Method)Standard Test Methods for Ash Content of Adhesives
Standard Test Methods for Ash Content of Adhesives
SIGNIFICANCE AND USE
This test method measures the amount of inorganic material in the sample.
SCOPE
1.1 These test methods cover procedures used in determining the ash content of adhesives. This standard is intended as a replacement for Method 4032.1 of Federal Test Method Standard 175B, "Adhesives: Methods of Testing."
1.2 Two test methods are used:
1.2.1 Test Method A is used for a starch adhesive or other type glue, where there is no danger from the non-volatile content forming a rubbery mass when ignited.
1.2.2 Test Method B employs nitric acid to avoid the non-volatile residue being transformed into a viscous foam when ignited.
1.3 These methods are not applicable to adhesives containing decomposable salts such as zinc chloride.
1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.5 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. For a specific hazard statement, see .
General Information
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:D5040–90(Reapproved2005)
Standard Test Methods for
Ash Content of Adhesives
This standard is issued under the fixed designation D5040; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 4. Summary of Test Methods
1.1 These test methods cover procedures used in determin- 4.1 Ash content of adhesive materials is determined by
ing the ash content of adhesives. This standard is intended as a heating a sample of material to remove all of the volatile
replacement for Method 4032.1 of Federal Test Method Stan- components. Complete oxidation and removal of all carbona-
dard 175B, “Adhesives: Methods of Testing.” ceous material may be enhanced by the addition of concen-
1.2 Two test methods are used: trated HNO . The general method of burning the residual ash
1.2.1 Test Method A is used for a starch adhesive or other in a muffle furnace at 600 6 25°C (1112 6 45°F) for8hor
type glue, where there is no danger from the non-volatile until constant weight, is used.
content forming a rubbery mass when ignited.
5. Significance and Use
1.2.2 Test Method B employs nitric acid to avoid the
5.1 This test method measures the amount of inorganic
non-volatile residue being transformed into a viscous foam
when ignited. material in the sample.
1.3 These methods are not applicable to adhesives contain-
6. Apparatus
ing decomposable salts such as zinc chloride.
6.1 Crucible, porcelain, silica or platinum with a tightly
1.4 The values stated in SI units are to be regarded as the
fitting lid, having a capacity of 30 to 45 mL.
standard. The values given in parentheses are for information
6.2 Evaporating Dish, porcelain, silica, or platinum, with a
only.
capacity of 150 mL.
1.5 This standard does not purport to address all of the
6.2.1 Watch Glasses to cover evaporating dishes.
safety concerns, if any, associated with its use. It is the
6.3 Desiccator, equipped with drying agent and tray.
responsibility of the user of this standard to establish appro-
6.4 Analytical Balance, sensitive to 1 mg.
priate safety and health practices and determine the applica-
6.5 Steam Bath.
bility of regulatory limitations prior to use. For a specific
6.6 Drying Oven, with temperature control for maintaining
hazard statement, see 9.2.3.
temperature at 100 to 105°C (212 to 221°F).
2. Referenced Documents
6.7 Electric Hotplate.
2.1 ASTM Standards: 6.8 Muffle Furnace, for igniting crucibles containing test
specimens. Capable of maintaining desired temperature regu-
D301 Test Methods for Soluble Cellulose Nitrate
D907 Terminology of Adhesives lation (6006 25°C (1112 6 45°F)).
D2415 Test Method for Ash in Coal Tar and Pitch
7. Reagents
3. Terminology
7.1 Nitric Acid (HNO ), concentrated, sp gr 1.42.
3.1 Definitions—Definitions of terms in this standard may
8. Test Specimens
be found in Terminology D907.
8.1 For each test, use 5 to6gof material.
1 8.2 The specimen being tested should represent the entire
These test methods are under the jurisdiction of ASTM Committee D14 on
Adhesives and are the direct responsibility of Subcommittee D14.10 on Working lot of material. Two specimens shall be taken for testing from
Properties.
each sample unit.
Current edition approved Oct. 1, 2005. Published November 2005. Originally
´ 1
approved in 1990. Last previous edition approved in 1997 as D5040 – 90 (1997) .
9. Procedure
DOI: 10.1520/D5040-90R05.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 9.1 Test Method A—Place a 5.0 6 0.5-g test specimen in an
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
ignited and tared crucible and evaporate to dryness on a steam
Standards volume information, refer to the standard’s Document Summary page on
bath. Cool in a desiccator and weigh accurately. Heat the
the ASTM website.
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D5040–90 (2005)
crucible and its contents in a muffle furnace, gradually heating
where:
the furnace until the temperature reaches 600 6 25°C (1112 6
W = weight of ash, and
45°F). With the ignition temperatur
...
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