의미와 용도
5.1 This test method is designed to induce color changes in sealants and their component pigments related to the conditions of end use, including the effects of sunlight, 습기와 열. The exposures used in this test method are not intended to simulate color changes in sealants caused by local weathering phenomena, 대기오염과 같은, biological attack, 염분 노출.

5.2 실험실 광원을 사용하는 장비에서 노광을 수행하는 경우, it is important to consider how the manual test conditions will reproduce the performance variations and failure modes associated with the final use environment of the sealant under test. Information on the use and interpretation of accelerated exposure test data is provided in Practice G151.

5.3 When this test method is used as part of the specification, the exact procedure, 시험 조건, test duration and evaluation techniques need to be specified. Due to the different spectral power distribution of the light sources (fluorescent ultraviolet and xenon arc), the results obtained between the two procedures may differ. Sealants should not be compared to each other based on results obtained in different types of equipment.

5.4 These devices are well matched to ultraviolet solar radiation. 하지만, for sealants that are sensitive to long wavelength ultraviolet and visible solar radiation, the absence of such radiation in fluorescent ultraviolet devices will distort the color stability ranking compared to external environmental exposure.

메모 1: For a complete cautionary guide on laboratory ageing of non-metallic materials, see Practice G151.

ASTM C1501-2019 실험실 가속 노화 절차를 통해 건물 구조용 실런트의 색상 견뢰도를 평가하기 위한 표준 테스트 방법

반지름
1.1 This test method describes laboratory accelerated aging procedures for the determination of color stability of building construction sealants using fluorescent ultraviolet or xenon arc test devices.

1.2 The color stability rankings provided by these two programs may not be consistent.

1.3 SI 단위로 표현된 값은 표준으로 간주됩니다.. 괄호 안의 값은 참고용입니다..

1.4 There is no equivalent ISO standard for this test method.

1.5 이 표준은 모든 안전 문제를 해결하기 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..

1.6 이 국제 표준은 국제 표준 개발 원칙에 관한 결정에서 확립된 국제적으로 인정된 표준화 원칙을 기반으로 합니다., 세계무역기구(WTO) 무역기술장벽위원회가 발행한 지침 및 권고사항.