美国标准 ASTM E 662烟雾光学密度测试
| ASTM E662 Standard Test Method For Specific Optical Density of Smoke Generation By Solid Materials 烟雾光学密度测试 | |
| Test Clause | Requirement |
| Conditioning | Predry specimens for 24 h at 140 ± 5°F (60 ± 3°C) and then condition to equilibrium (constant weight) at an ambient temperature of 23 ± 3°C and a relative humidity of 50 ± 5 % |
| Sample Required: | 10 PCS OF 75mm x 75mm x thickness(Less than 25mm) |
| Turnaround time: normal ( 9 working days) | |
Sample Report 报告样本：
Sample for reference 参考图片:
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