의미와 용도
5.1 The ability to quickly and accurately assess and predict the long-term weathering properties of plant applied coatings is important for making sound business and technical decisions.

5.2 It is important to include control samples of known field properties to determine the efficacy of the practice on specific substrates and coating systems. These control samples may include materials known to have acceptable and unacceptable field properties for the defects under consideration.

5.3 The results derived from this practice are better used to compare the relative properties of materials tested simultaneously in the same device.

5.4 The inclusion of control samples and their resulting data will help to deal with test variability caused by seasonal or annual changes in important climatic factors.

5.5 Extensive research was conducted in the development of this standard practice. The study showed that this approach was not useful for determining quantitative accelerators. 하지만, this test is useful as a comparison test.

5.6 It is recommended that control samples and samples be repeated at least twice for statistical evaluation of the results. For additional guidance on determining the number of repeats, see Practice G169.

ASTM D5722-2014 집중된 자연 햇빛 및 토양 동결 해동 절차를 사용하여 공장에서 코팅한 엠보싱 경질 섬유판의 옥외 풍화 촉진을 위한 표준 실습

단계 1: 범위
1.1 This Practice includes techniques for accelerating the weathering effects of factory coated patterning hard fiberboard using the Practice G90’s 1st cycle (concentrated natural sunlight with periodic surface water spray) plus a soil-freeze-thaw cycle (섹션 참조 5 of this Practice).

1.2 Tests performed using the methods described in this practice may be used for qualitative assessment of weathering effects. The relative durability of coated cardboard can be well determined by comparing their test results with those of control samples from real-time exposure test experience.

1.3 Values expressed in SI units or inch-pound units shall be treated separately as standard values. The values stated in each system may not be exactly equivalent; 그러므로, 각 시스템은 독립적으로 사용해야 합니다.. Combining values from two systems can result in non-compliance.

1.4 이 표준은 모든 안전 문제를 해결하기 위한 것이 아닙니다., 만약에 어떠한, 그 사용과 관련된. 적절한 안전 및 보건 관행을 확립하고 사용 전에 규제 제한의 적용 가능성을 결정하는 것은 이 표준 사용자의 책임입니다..