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ASTM D1005-95(2007)

(Test Method)

Standard Test Method for Measurement of Dry-Film Thickness of Organic Coatings Using Micrometers

Standard Test Method for Measurement of Dry-Film Thickness of Organic Coatings Using Micrometers

SCOPE
1.1 This test method covers the measurement of film thickness of dried films of paint, varnish, lacquer, and related products using micrometers. Procedures A and B utilize stationary micrometers and Procedures C and D, hand-held micrometers. Procedures A and C are not recommended for films less than 12.5 m (0.5 mils) in thickness. The minimum thickness required for Procedures B and D is a function of that required to enable removal of the sample as a free film.
1.2 The procedures appear as follows:
1.2.1 Procedure A—Stationary micrometer for measuring coatings applied to plane rigid surfaces.
1.2.2 Procedure B—Stationary micrometer for measuring free films.
1.2.3 Procedure C—Hand-held micrometer for measuring coatings applied to plane rigid surfaces.
1.2.4 Procedure D—Hand-held micrometer for measuring free films.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.4 This standard does not purport to address 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
31-Oct-2007
ICS
25.220.60 - Organic coatings
Technical Committee
D01 - Paint and Related Coatings, Materials, and Applications
Drafting Committee
D01.23 - Physical Properties of Applied Paint Films
Current Stage
Ref Project

Relations

Replaces
ASTM D1005-95(2001) - Standard Test Method for Measurement of Dry-Film Thickness of Organic Coatings Using Micrometers
Effective Date
01-Nov-2007
Referred By
ASTM D4587-23 - Standard Practice for Fluorescent UV-Condensation Exposures of Paint and Related Coatings
Effective Date
01-Nov-2007
Referred By
ASTM D522/D522M-17(2021) - Standard Test Methods for Mandrel Bend Test of Attached Organic Coatings
Effective Date
01-Nov-2007
Referred By
ASTM D6903-07(2020) - Standard Test Method for Determination of Organic Biocide Release Rate From Antifouling Coatings in Substitute Ocean Water
Effective Date
01-Nov-2007
Referred By
ASTM D7187-20 - Standard Test Method for Measuring Mechanistic Aspects of Scratch/Mar Behavior of Paint Coatings by Nanoscratching
Effective Date
01-Nov-2007
Referred By
ASTM D3322-23 - Standard Practice for Testing Primers and Primer Surfacers Over Preformed Metal
Effective Date
01-Nov-2007
Referred By
ASTM D2370-16(2021) - Standard Test Method for Tensile Properties of Organic Coatings
Effective Date
01-Nov-2007
Referred By
ASTM D4138-07a(2022) - Standard Practices for Measurement of Dry Film Thickness of Protective Coating Systems by Destructive, Cross-Sectioning Means
Effective Date
01-Nov-2007
Referred By
ASTM D3794-22 - Standard Guide for Testing Coil Coatings
Effective Date
01-Nov-2007
Referred By
ASTM D6803-19 - Standard Practice for Testing and Sampling of Volatile Organic Compounds (Including Carbonyl Compounds) Emitted from Architectural Coatings Using Small-Scale Environmental Chambers
Effective Date
01-Nov-2007
Referred By
ASTM D6486-23 - Standard Practice for Short Term Vehicle Service Exposure of Automotive Coatings
Effective Date
01-Nov-2007
Referred By
ASTM E1797-12(2017)e1 - Standard Specification for Reinforced Liquid Coating Encapsulation Products for Leaded Paint in Buildings
Effective Date
01-Nov-2007
Referred By
ASTM D5178-21 - Standard Test Method for Mar Resistance of Organic Coatings
Effective Date
01-Nov-2007
Referred By
ASTM D6037-21 - Standard Test Methods for Dry Abrasion Mar Resistance of High Gloss Coatings
Effective Date
01-Nov-2007
Referred By
ASTM C1349-17 - Standard Specification for Architectural Flat Glass Clad Polycarbonate
Effective Date
01-Nov-2007

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ASTM D1005-95(2007) - Standard Test Method for Measurement of Dry-Film Thickness of Organic Coatings Using MicrometersASTM D1005-95(2007) - Standard Test Method for Measurement of Dry-Film Thickness of Organic Coatings Using Micrometers
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ASTM D1005-95(2007) - Standard Test Method for Measurement of Dry-Film Thickness of Organic Coatings Using Micrometers
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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: D1005 − 95 (Reapproved2007)
Standard Test Method for
Measurement of Dry-Film Thickness of Organic Coatings
1
Using Micrometers
This standard is issued under the fixed designation D1005; 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 of Paint, Varnish, and Related Products on Test Panels
D2370 Test Method for Tensile Properties of Organic Coat-
1.1 This test method covers the measurement of film thick-
ings
ness of dried films of paint, varnish, lacquer, and related
products using micrometers. Procedures A and B utilize sta-
3. Significance and Use
tionary micrometers and Procedures C and D, hand-held
micrometers. Procedures A and C are not recommended for
3.1 This test method is particularly applicable to the mea-
films less than 12.5 µm (0.5 mils) in thickness. The minimum
surement of free films and is also satisfactory for the measure-
thickness required for Procedures B and D is a function of that
ment of films on laboratory test panels.
required to enable removal of the sample as a free film.
3.2 The accuracy and precision of the thickness measure-
1.2 The procedures appear as follows:
ments may be influenced by the deformability of the coating.
1.2.1 Procedure A—Stationary micrometer for measuring
This test method is not applicable to coatings that are readily
coatings applied to plane rigid surfaces.
deformable under the load of the measuring instrument.
1.2.2 Procedure B—Stationary micrometer for measuring
3.3 The accuracy and precision of the thickness measure-
free films.
ments are also influenced by the uniformity of the substrate
1.2.3 Procedure C—Hand-held micrometer for measuring
when the coatings are applied to laboratory test panels.
coatings applied to plane rigid surfaces.
1.2.4 Procedure D—Hand-held micrometer for measuring
4. Apparatus
free films.
4.1 Procedures A and B:
1.3 The values stated in SI units are to be regarded as the
standard. The values given in parentheses are for information 4.1.1 The apparatus shall consist of a dial comparator, dial
only. indicator, or micrometer.Arigid base is required for mounting
the dial comparator or dial indicator gages. The presser foot of
1.4 This standard does not purport to address the safety
the micrometer or dial indicator shall be circular, from 1.5 to
concerns, if any, associated with its use. It is the responsibility
1 1
3.0 mm ( ⁄16 to ⁄8 in.) in diameter, and shall be flat on the
of the user of this standard to establish appropriate safety and
bottom.Thepresserfootshallbefixedtoanindicatorthatreads
health practices and determine the applicability of regulatory
to 2.5 µm (0.1 mil). The load on the presser foot shall be
limitations prior to use.
between 140 and 275 kPa (20 and 40 psi ). For Procedure B, a
smooth uncoated test plate is also required.
2. Referenced Documents
2 4.1.2 Verify the accuracy of instrument calibration by set-
2.1 ASTM Standards:
ting to zero with the anvils closed followed by measuring
D823 Practices for Producing Films of Uniform Thickness
shims of known thicknesses or standards specifically designed
for this purpose. Record the standard thickness gage measure-
mentandthemicrometerreading.Usetheseresultstoconstruct
1
This test method is under the jurisdiction of ASTM Committee D01 on Paint
a calibration curve.
and Related Coatings, Materials, andApplications and is the direct responsibility of
Subcommittee D01.23 on Physical Properties of Applied Paint Films.
4.2 Procedures C and D—The apparatus shall consist of a
Current edition approved Nov. 1, 2007. Published November 2007. Originally
hand-held micrometer. The anvils of the micrometer shall be
approved in 1949. Last previous edition approved in 2001 as D1005 – 95 (2001).
1 1
DOI: 10.1520/D1005-95R07.
circular, from 1.5 to 3.0 mm ( ⁄16 to ⁄8 in.) in diameter, with
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
flat bottoms. Verify the accuracy of instrument calibration by
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
setting to zero with the anvils closed followed by measuring
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. shims of known thicknesses or standards specifically designed
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D1005 − 95 (2007)
for this purpose. Record the standard thickness gage measure-
mentandthemicrometerreading
...

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ASTM D6991-17(2022)(Test Method)
Standard Test Method for Measurements of Internal Stresses in Organic Coatings by Cantilever (Beam) Method

SIGNIFICANCE AND USE
5.1 Stresses in coatings arise as a result of their shrinkage or expansion if expected movements are prevented by coating adhesion to its substrate.  
5.2 There are several causes leading to arrival of stresses in the coatings: film formation (cross-linking, solvent evaporation, etc.); differences in thermal expansion coefficients between coating and substrate; humidity and water absorption; environmental effects (ultraviolet radiation, temperature and humidity), and others.  
5.3 Knowledge of the internal stresses in coatings is very important because they may effect coating performance and service life. If the internal stress exceeds the tensile strength of the film, cracks are formed. If stress exceeds adhesion between coating and substrate, it will reduce adhesion and can lead to delamination of coatings. Quantitative information about stresses in coatings can be useful in coating formulation and recommendations for their application and use.  
5.4 This method has been found useful for air-dry industrial organic coatings but the applicability has not yet been assessed for thin coatings (thickness
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1.1 This test method covers the procedure for measurements of internal stresses in organic coatings by using the cantilever (beam) method.  
1.2 This method is appropriate for the coatings for which the modulus of elasticity of substrate (Es) is significantly greater than the modulus of elasticity of coating (Ec) and for which the thickness of substrate is significantly greater than thickness of coating (see Note 7 and Note 8).  
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1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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5.1 Tensile properties determined by this method are of value in studying the behavior of coatings subjected to environmental stresses, such as those produced by aging and weathering. (See Refs. (1-10).)4  
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1.1 This test method covers the determination of the elongation, tensile strength, and stiffness (modulus of elasticity) of organic coatings when tested as free films.  
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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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
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