의미와 목적
3.1 These test methods are designed to compile and provide screening tests to evaluate clear and pigmented lacquers used in different coating operations.

3.2 Each coating system can consist of a simple one-coat operation to a multi-coat finishing system.

3.3 Substrates can be diverse, ferrous and non-ferrous metals, plastic or wood, which can affect the performance of a given coating system.

3.4 chemical or physical cleaning base material is one of the important and key aspects of coating system performance.

3.5 The results of the various tests may not all be useful in assessing the performance of the different types of coating systems used on many different substrates.

투명 및 유색 래커에 대한 ASTM D333-2021 표준 가이드

범위
1.1 These test methods cover procedures for testing lacquers and lacquer coatings. 테이블 1 포함된 테스트 방법을 나열합니다..

메모 1: according to the term D16, paint is defined as based on dissolved in organic solvent in the synthesis of thermoplastic film forming materials and mainly by the solvent evaporation drying coating combination. Typical lacquer includes based on nitrocellulose lacquer and other cellulose derivatives, vinyl resin, acrylic resin, 등.

메모 2: the paint can be in such a variety of conditions on the coating on the surface of many different, and the dry film could be affected by so many wear and exposed, to be through a single selection of test method and the numerical results to ensure that the required performance. Technicians in the field of lacquer technology can find partial guarantees of obtaining the required quality in various types of lacquers by carefully selecting the methods covered in this paper and intelligently interpreting their results.

메모 3: The ultimate aim is to remove all experimental procedures from test method D333 and establish them as a guide for choosing a lacquer test method and possibly interpreting its results. For the time being, a number of tests remain in Test Method D333 that are too short or currently inappropriate to be established under a separate ASTM name.

투명 및 유색 래커에 대한 ASTM D333-2021 표준 가이드

1.2 SI 단위는 표준으로 간주됩니다.. The values given in the brackets are for reference only.

1.3 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..

1.4 본 국제 표준은 국제 표준 개발 원칙에 관한 결정에서 확립된 국제적으로 인정받는 표준화 원칙에 따라 개발되었습니다., 세계무역기구(WTO) 무역기술장벽위원회가 발행한 지침 및 권고사항.