ASTM E 1216 : 2021
Current
The latest, up-to-date edition.
Standard Practice for Sampling for Particulate Contamination by Tape Lift
Hardcopy , PDF
English
29-09-2021
Important note : Users cannot be edited or removed once added to your Multi user PDF.| Committee |
E 21
|
| DocumentType |
Standard Practice
|
| Pages |
5
|
| PublisherName |
American Society for Testing and Materials
|
| Status |
Current
|
| Supersedes |
1.1This practice covers procedures for sampling surfaces to determine the presence of particulate contamination, 5 μm and larger. The practice consists of the application of a pressure-sensitive tape to the surface followed by the removal of particulate contamination with the removal of the tape. The tape with the adhering particles is then mounted on counting slides. Counting and measuring of particles is done by standard techniques.
1.2This practice describes the materials and equipment required to perform sampling of surfaces for particle counting and sizing.
1.3The criteria for acceptance or rejection of a part for conformance to surface cleanliness level requirements shall be determined by the user and are not included in this practice.
1.4This practice is for use on surfaces that are not damaged by the application of adhesive tape. The use of this practice on any surface of any material not previously tested, or for which the susceptibility to damage is unknown, is not recommended. In general, metals, metal plating, and oxide coatings will not be damaged. Application to painted, vapor deposited, and optical coatings should be evaluated before implementing this test.
1.5This practice provides three methods to evaluate tape lift tests, as follows:
| Practice | Sections |
| A—This method uses light transmitted through the tape and tape adhesive to detect particles that adhere to it. | 4 to 6 |
| B—This method uses light transmitted through the tape adhesive after bonding to a base microscope slide, dissolving the tape backing, and a cover slide. The particles are embedded in the adhesive, and air bubbles are eliminated with acrylic mounting media. | 7 to 9 |
| C—This method uses light reflected off the tape adhesive to detect particles that adhere to it. | 10 to 12 |
1.6Units—The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.
1.7This 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.
1.8This 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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