www.77伦理bt.com_www.888av_www.9191_www.91av在线_日本成片网_日本成人不卡

老化测试设备

咨询热线

18566398802
首页 > 标准大全 > ASTM D5215标准详情
相关测试仪器

ASTM D5215

(该标准已经被ASTM D5215 - 93(2012)替代)
  本页面标准信息均来源于网络收集,或由参与标准制定的供应商提供,只作为参考使用。我们愿意和您交流ASTM D5215标准细节信息或ASTM D5215测试方法,欢迎致电【18566398802】

ASTM D5215标准介绍

ASTM D5215是烯基地板用胶黏剂着色的仪器评定的试验法,本标准是于1993年被采用,并且于2012年重新复审的:

1.1ASTM D5215描述准确测量由于接触胶粘剂而发生在乙烯基地板染色程度的过程和方法。乙烯基地板样品接触胶粘剂和未接触到粘合剂之间颜色差异可以从CIELAB颜色刻度测得。

1.2本试验方法提供了可能出现的乙烯基地板接触胶粘剂染色过程中的视觉评价。

ASTM D5215英文简介

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.

温馨提醒:本ASTM D5215可能存在更新的版本,建议寻找ASTM D5215的发行商确认。

主站蜘蛛池模板: 国产农村一级特黄α真人毛片 | 精品久久久久久乐 | 成人午夜免费在线观看 | 日本韩国一区二区 | 黄色片毛片 | 高清成人爽a毛片免费网站 高清国产一区二区三区 | 国产一区二区三区视频 | 欧美黄色一级毛片 | 成人一级网站 | 欧美激情级毛片 | 久久久噜久噜久久gif动图 | 成年人免费小视频 | 黄网站视频观看免费 | 老司机深夜免费福利 | 91网址免费入口 | 不卡视频在线观看 | 99久久免费看国产精品 | 99视频网| 欧美日本一道高清二区三区 | 国产亚洲精aa在线观看不卡 | 国产成人性毛片aaww | 日韩高清性爽一级毛片免费 | 日韩毛片欧美一级国产毛片 | 欧美日韩精品在线 | 黄色片成年人 | 国产xh98hx在线观看 | 97超级碰碰在线看视频免费超 | 久久久综合中文字幕久久 | 国产视频一区二区在线观看 | a级精品九九九大片免费看 a级毛片黄色 | 欧美极品第1页专区 | h福利视频| 久久国产免费一区 | 欧美高清在线精品一区 | a级黄色大片在线观看视频男男 | 国产精品福利视频 | 成 人 免 费 黄 色 | 成人影院在线观看视频 | 日本浮力影院 | 国产一级不卡毛片 | 99久久精品国产一区二区小说 |