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ASTM D5215測(cè)試標(biāo)準(zhǔn)
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ASTM D5215標(biāo)準(zhǔn)介紹
ASTM D5215是烯基地板用膠黏劑著色的儀器評(píng)定的試驗(yàn)法，本標(biāo)準(zhǔn)是于1993年被采用，并且于2012年重新復(fù)審的：
1.1ASTM D5215描述準(zhǔn)確測(cè)量由于接觸膠粘劑而發(fā)生在乙烯基地板染色程度的過程和方法。乙烯基地板樣品接觸膠粘劑和未接觸到粘合劑之間顏色差異可以從CIELAB顏色刻度測(cè)得。
1.2本試驗(yàn)方法提供了可能出現(xiàn)的乙烯基地板接觸膠粘劑染色過程中的視覺評(píng)價(jià)。
ASTM D5215英文簡(jiǎn)介
Significance and Use
Certain substances in adhesives may cause discoloration of vinyl flooring. This test method provides a means of measuring the discolorations that may occur in the vinyl as a result of contact with these adhesives. Vinyl flooring specimens, either contacting or not contacting the adhesive, are exposed to heat and UVA light to accelerate discoloration. By means of colorimeter or spectrophotometer, color differences between exposed specimens are accurately measured. Therefore, instrumental evaluation rather than personal subjective evaluation is used to determine the amount of discoloration an adhesive may produce in vinyl flooring. This test method does not attempt to simulate or duplicate the heat and sunlight conditions that may impact vinyl floor coverings while in service.
1. Scope
1.1 This test method describes procedures and instrumentation for accurately measuring the degree of staining that may occur in vinyl flooring as a result of its contact with adhesives. Measured color differences between vinyl flooring specimens contacting the adhesive and not contacting the adhesive are expressed in the CIELAB Color-Scale System.
1.2 This test method provides for visual evaluation of staining which may occur when vinyl flooring contacts adhesives.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents
ASTM Standards
D907 Terminology of Adhesives
D2244 Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
E1347 Test Method for Color and Color-Difference Measurement by Tristimulus Colorimetry
E1349 Test Method for Reflectance Factor and Color by Spectrophotometry Using Bidirectional (45:0 or 0:45) Geometry
G53 Practice for Operating Light-and Water-Exposure Apparatus (Fluorescent UV-Condensation Type) for Exposure of Nonmetallic Materials.
▼ASTM D5215第三方檢測(cè)機(jī)構(gòu)
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