ASTM D5069-2007 Standard Practice for Preparation of Paint-Roller Covers for Evaluation of Architectural Coatings《建筑涂层的评估用漆滚子涂层制备的标准实施规程》.pdf
《ASTM D5069-2007 Standard Practice for Preparation of Paint-Roller Covers for Evaluation of Architectural Coatings《建筑涂层的评估用漆滚子涂层制备的标准实施规程》.pdf》由会员分享,可在线阅读,更多相关《ASTM D5069-2007 Standard Practice for Preparation of Paint-Roller Covers for Evaluation of Architectural Coatings《建筑涂层的评估用漆滚子涂层制备的标准实施规程》.pdf(2页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D 5069 07Standard Practice forPreparation of Paint-Roller Covers for Evaluation ofArchitectural Coatings1This standard is issued under the fixed designation D 5069; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the y
2、ear of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This practice covers the preparation or breaking-in ofpaint-roller covers for evaluation.1.2 This practice is
3、applicable to paint-roller covers havingnap lengths up to 13 mm (12 in.). Longer pile rollers can beadapted.1.3 The values stated in SI units are to be regarded as thestandard. The values given in parentheses are for informationonly.1.4 This standard does not purport to address the safetyconcerns, i
4、f any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety andhealth practices and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D 3924 Specification for Environment for Condition
5、ing andTesting Paint, Varnish, Lacquer, and Related Materials3. Summary of Practice3.1 Using the paint chosen for the evaluation, the paint-roller cover to be tested is repeatedly and generously loadedwith paint and painted out over the same area until it issaturated with paint, that is, the paint-r
6、oller cover cannot pickup any more paint, nor apply any more paint to the area beingused for break-in.4. Significance and Use4.1 Until a paint-roller cover is saturated with paint, onlypart of the paint loaded onto the paint-roller cover can betransferred to a surface being painted. The remainder of
7、 thepaint is absorbed into the fabric of the paint-roller cover. Theamount of paint absorbed by a paint-roller cover is inverselyproportional to the amount already present within the paint-roller cover. By saturating the paint-roller cover before testing,quantitative inaccuracies of the amount of pa
8、int delivered to asurface are eliminated.4.1.1 Using a saturated paint-roller cover enables the user toapply paint at controllable spreading rates.4.1.2 Using a saturated paint-roller cover affords reproduc-ibility, when repeating a test.5. Apparatus5.1 Paint Tray.5.2 Paint Roller Frame, of the same
9、 size as the paint-rollercover being prepared.6. Materials6.1 Paint, to be used in test.6.2 Primed or Smooth Surface, to be used for the roller-cover break-in.7. Procedure7.1 All tests are to be conducted in an atmosphere having atemperature of 23 6 2C (73.5 6 3.5F) and a relativehumidity of 50 6 5
10、% (see Specification D 3924).7.2 Place the paint-roller cover on the frame.7.3 Load the paint-roller cover with the paint from the trayby rolling the paint-roller cover over the surface of the paint sothat just the nap is submersed. See Fig. 1.7.4 Roll out the roller cover on the surface being used
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