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sklademVydáno: 2017
ISO 8791-3:2017
ISO 8791-3:2017-Paper and board — Determination of roughness/smoothness (air leak methods) — Part 3: Sheffield method
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| Označení normy: | ISO 8791-3:2017 |
| Počet stran: | 14 |
| Vydání: | 3 |
| Vydáno: | 2017 |
| Jazyk: | Anglicky |
Popis
ISO 8791-3:2017
ISO 8791-3:2017 specifies a method for the determination of the roughness of paper and board using the Sheffield apparatus. ISO 8791-3:2017 is applicable to papers and boards which have Sheffield roughness values between 10 ml/min and about 3 000 ml/min. It is not suitable for soft papers which allow the lands of the test head to indent the surface, or for high air-permeance papers which allow a significant flow of air through the sheet, or for papers which will not lie flat during the test.