| 标准编号 Standard/Code | 标准名称 Standard Title |
| TAPPI T 653 | Specular Gloss of Paper and Paperboard at 20 Degrees |
1.1 This method is for the measurement of the specular gloss of high-gloss papers at 20° (70° from the plane of the paper).
1.2 This method is suitable for high-gloss coated, cast-coated, lacquered, highly varnished or waxed papers, and high-gloss ink films. For the measurement of low- to moderate-gloss coated and uncoated papers and low- to moderate-gloss ink films, TAPPI T 480 “Specular Gloss of Paper and Paperboard at 75 Degrees” is preferred. Neither method is a measure of image reflecting quality.
1.3 This method will provide different values for 20° gloss than ASTM Standard D523 due to differences in optical geometry.
Test Requirement 测试要求：
镜面光泽度
Sample Size 样品数量 / 送样规格: 4pcs
Lead Time / TAT (Turn Around Time) 测试周期: 常规服务 Regular service 7-9 working days
Report Summary 报告摘要:
