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1.1 This practice describes the measurement of dry film thickness of coating films by microscopic observation of precision angular cuts in the coating film. Use of these procedures may require repair of the coating film. This practice is intended to supplement the manufacturers' instructions for the manual operation of the gages and is not intended to replace them. It includes definitions of key terms, reference documents, the significance and use of the practice, and the advantages and limitations of the instruments.
| Author | ASTM |
|---|---|
| Editor | ASTM |
| Document type | Standard |
| Format | File |
| Confirmation date | 2017-12-01 |
| ICS | 87.040 : Paints and varnishes |
| Number of pages | 5 |
| Replace | ASTM D4138-07a(2013) |
| Set | ASTMVOL0601 |
| Year | 2007 |
| Document history | ASTM D4138-07a(2013) |
| Country | USA |
| Keyword | ASTM 4138;ASTM D4138;ASTM D4138;10.1520/D4138-07AR17 |