의미와 용도
5.1 Certain substances in adhesives may cause discoloration of vinyl flooring. This test method provides a way to measure discoloration in vinyl that may occur as a result of contact with these adhesives. Vinyl substrate samples, whether in contact with or without the adhesive, are exposed to heat and UVA light to accelerate discoloration. With a colorimeter or spectrophotometer, the color difference between exposed specimens can be accurately measured. 그러므로, an instrumental assessment rather than an individual subjective assessment is used to determine the amount of discoloration that adhesives may produce in vinyl flooring. This test method does not attempt to simulate or replicate the heat and sunlight conditions that may affect vinyl flooring during use.
ASTM D5215-2021 “Instrumental Evaluation of Coloration of Adhesives for Substrate”
반지름
1.1 This test method describes procedures and instruments for accurately measuring the degree of staining that may occur on vinyl flooring as a result of contact with the adhesive. The measured color difference between contact and non-contact adhesives for vinyl substrate samples is expressed in the CIELAB color scale system.
1.2 This test method provides a visual assessment of staining that may occur when vinyl flooring is in contact with the adhesive.
1.3 Values expressed in inch-pounds shall be regarded as standard values. The values given in parentheses are mathematical transformations of SI units and are for reference only and are not considered standard.
1.4 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..
1.5 이 국제 표준은 국제 표준 개발 원칙에 관한 결정에서 확립된 국제적으로 인정된 표준화 원칙을 기반으로 합니다., WTO 무역기술장벽위원회가 발행한 지침 및 권고사항.