熟女无套高潮内谢视频韩国,女人荫蒂全部过潮喷,老熟妇仑乱视频一区二,蜜芽忘忧草三区老狼大豆

ISO 4630 Gardner Color Comparator

Description

Colour variations of transparent liquids such as varnishes, solvents, resins, tensides, oils et.,may be caused by contamination or impurities, process inconsistencies, or excessive weathering. Therefor, reliable and accurate measurements are essential to ensure consistent production standards.

BGD 425 Gardner Color Comparator with C Illuminant is used to test the color of drying fatty oil, varnish, fatty acid, polymerized fatty acids and resin. It complies with ISO 4630 standard.

ISO 4630 Gardner Color Comparator

Technical Specification

■ Glass tubes：Colorless and transparent with inner diameter is 10.65± 0.025mm,external diameter is 12.5mm and the length is 114mm

■ Working Standard：18 pcs different standard liquid color which are prepared according with ISO 4630

■ Illuminant：Its energy of spectra is similar with C light resource of CIE. And the ray come through breadth wise the working standard color and sample

■ The environment is neutral color, the two working standard colors and one sample are within eye shot