Specular gloss shall be determined in accordance with EN ISO 2813.
光泽度应按照EN ISO 2813标准进行测定。
Table 1 — Classes for specular gloss(G)光泽度
Class |
Angle of Incidence 入射角 |
Requirement 要求 |
|
G1 |
Gloss a 有光泽 |
60° |
>60 |
G2 |
Mid-sheen b 中度光泽 |
60° 85° |
≤60 >10 |
G3 |
Matt亚光 |
85° |
≤10 |
a According the national preference, the designation of "gloss" can vary e.g. high sheen a 根据各国偏好,“有光 (gloss)” 的命名可能有所不同,例如:高光 (high sheen)。 b According the national preference, the designation of"mid sheen" can vary e.g. semi-gloss, semi-matt, satin b 根据各国偏好,“半光 (mid sheen)” 的命名可能有所不同,例如:半光 (semi-gloss)、半哑 (semi-matt)、缎光 (satin)。 |
If the reflectance measured at 60° is less than 10, the measurement shall be repeated at 85°, the value obtained at 85°determines the class.
如果在 60° 角测得的反射值小于 10,则应在 85° 角重复测量,以在 85° 角获得的值确定类别。
NOTE 1 In practice, the gloss level achieved will depend on the state and nature of the substrate.
注 1 实践中,达到的光泽度水平将取决于基材的状态和性质。
NOTE 2 Gloss cannot be measured on textured coatings and coatings with coarse or very coarse granularity
注 2 光泽度无法在纹理涂料以及具有粗粒度或很粗粒度的涂层上进行测量。