 |
|
Standard
| YY/T 1646-2019 Dentistry—Test method for determining radio-opacity of materials (English Version) |
|
|
|
|
|
|
|
|
Detail of YY/T 1646-2019
| Standard No. |
|
| English Name |
|
| Chinese Name |
|
| Chinese Classification |
|
| Professional Classification |
|
| ICS Classification |
|
| Issued by |
|
| Issued on |
|
| Implemented on |
|
| Status |
|
| Superseded by |
|
| Superseded on |
|
| Abolished on |
|
| Superseding |
|
| Language |
|
| File Format |
| Word Count |
| Price(USD) |
|
| Keywords |
|
Introduction of YY/T 1646-2019
本标准规定了用一种标准铝板作为标准品，以测定材料X射线阻射性的试验方法。此方法是设计用于区别具有临床意义水平的X射线阻射性，而不考虑影响精度的因素，也不考虑影响X射线阻射性的自身因素（诸如背景噪声、X射线能量、灰度校准和图像增强)。虽然，这些影响因素能够改变X射线阻射性的数值，但是不能改变与标准厚度的标准品（例如铝)相比较的对应趋势。本试验可以通过牙科X射线机的传统或数字传感技术来完成。
Contents of YY/T 1646-2019