의미와 목적

5.1 건물과 구조물에 대한 낙서는 지속적이고 증가하는 문제입니다.. Many applications have been produced that are designed to resist graffiti marks or provide coatings on surfaces from which such marks can be easily removed. The procedure described in this practice provides a set of standard conditions that can be used to assess the graffiti resistance of a surface.

5.2 Graffiti resistance measured in accordance with this procedure is applicable to smooth surfaces. The same coating applied to rough or textured surfaces may be less resistant to graffiti.

5.3 Coating resistance to graffiti determined after natural or laboratory accelerated weathering, either before or after marking and conducted in accordance with this code, is considered to have greater weight than resistance to graffiti determined on the same coating without weathering. Coating resistance to graffiti determined after natural weathering should be considered more important than resistance to graffiti determined after accelerated laboratory aging.

ASTM D6578-2018 낙서 저항 측정을 위한 표준 관행

범위

1.1 This protocol covers the basic methods for assessing the graffiti resistance of coatings and the use of this protocol to assess the graffiti resistance of coatings after outdoor or laboratory accelerated exposure (before or after graffiti). Graffiti resistance is based on how a defined set of cleaners removes a defined set of marks.

1.2 This specification also defines procedures (선택 과목) for assessing graffiti removal after re-marking and subsequent re-cleaning. It does not involve recoating after the coating is no longer graffiti resistant.

1.3 Values expressed in SI units or inch-pound units shall be considered standards, 각기. 각 시스템에 지정된 값은 정확히 동일하지 않을 수 있습니다.; 그러므로, 각 시스템은 독립적으로 사용해야 합니다.. Combining the values of both systems may lead to non-compliance with the criteria.

1.4 이 표준은 모든 안전 문제를 다루기 위한 것이 아닙니다., 만약에 어떠한, 그 사용과 관련된. 적절한 안전을 확립하는 것은 이 표준 사용자의 책임입니다., 건강 및 환경 관행을 확인하고 사용 전 규제 제한의 적용 여부를 결정합니다..

1.5 This international Standard has been developed in accordance with the internationally accepted standardization principles established in the Decision on Principles for the Development of International Standards, 무역 기술 장벽이 발행한 지침 및 권장 사항 (TBT) 세계무역기구 위원회.