1、Designation: D7801 12D7801 17Standard Terminology forPaint Brush Application Tools1This standard is issued under the fixed designation D7801; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in pa
2、rentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This standard establishes the definitions for terminology used in testing and manufacturing of paint brushes.1.2 This standard does not purport to
3、address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use.1.3 This international standard was developed in accord
4、ance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Sta
5、ndards:2D5068 Practice for Preparation of Paint Brushes for EvaluationD5301 Practice for Physical Characterization of Paint BrushesD7073 Guide for Application and Evaluation of Brush and Roller Applied Paint FilmsD7834 Test Method for Filling Material Shedding of Paint Brushes3. Terminology3.1 Defin
6、itions:brush ferrule, nthe fitting that houses the butt end of the filament and secures it to the handle.brush filling material, na set of aligned filament (whether natural hair, plant fibers or synthetic) used to provide the brushingportion of a paint brush.brush stiffness, nforce required to defle
7、ct the filaments to a particular displacement.chisel trim, na brush making process in which the tip of the brush is mechanically (cut or sheared) shaped to a domed profile.cut-in, vto carefully paint an edge to avoid spreading paint onto an adjacent area.feathering, nfor painting, to reduce the thic
8、kness of a wet, coated region (such as using the strokes of a relatively dry brush)so that the edge fades off or softens.fishtail, na condition in which the center filaments of a brush wear down more than the filaments on the side of the brush.formed chisel, na property of a brush produced by a brus
9、h making process in which the filaments are assembled, formed andbound at the butt end to produce a domed (beveled) profile at the tip end.formulation, na specification that gives the ingredients and amounts or process.heeling, nfor paint brush filaments, reduction of brush performance caused by pai
10、nt hardening in the handle (heel) end of thefilament bundle.length clear, nthe length of the filament exposed from the ferrule edge to the tip of the brush filament.1 This terminology is under the jurisdiction of ASTM Committee D01 on Paint and Related Coatings, Materials, and Applications and is th
11、e direct responsibility ofSubcommittee D01.61 on Paint Application Tools.Current edition approved June 1, 2012June 1, 2017. Published June 1, 2102June 2017. Originally approved in 2012. Last previous edition approved in 2012 as D7801 12. DOI: 10.1520/D7801-12.10.1520/D7801-17.2 For referencedASTM st
12、andards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standardsstandards Document Summary page on the ASTM website.This document is not an ASTM standard and is intended only to provide the u
13、ser of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard
14、as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1snap, nfor paint brush filaments, the flexibility and resiliency of brush filaments when bent to one side and then released
15、.tapered filament, na synthetic filament that has a diameter formed during extrusion that decreases uniformly along its entirelength from the larger butt end to the smaller tip.tipped, nfor synthetic filaments, ending in a fine point that is formed by mechanical or chemical processes.wear, nfor pain
16、t brush filaments, loss in effectiveness of a paint brush caused by abrasion of the filaments.4. Keywords4.1 brushes; definitions; terminologyASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of thi
17、s standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five yea
18、rs andif not revised, either reapproved or withdrawn.Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committ
19、ee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428
20、-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 172
