国产精品99久久久久久www_乱小说录目伦合集最新章节_国产区小视频_一级毛片aa免费观看

【Standards compliant】

It is used to determine the whiteness and optical properties of textiles, silk, paper, paint, cotton, chemical fiber, ceramic building materials, and daily chemical materials.

【Standards compliant】

ISO2469 JJG512/48

【technical parameter】

1. Measurement content: ISO whiteness (ie R457 blue whiteness), fluorescent whiteness

Transparency (T) and lightness stimulus value (V10)

Determine opacity (0)

Scattering coefficient and absorption coefficient

2. Test hole diameter: Φ32mm

3. Basic error: <0.5%

4. Indication error: ≤1.0%

5. Mirror reflection: <0.1

6. Zero drift: ≤0.1%/30min

7. Indication drift: ≤0.2%

8. Power source: Ac220V+10% 50Hz 50w

9. Dimensions: 370×190×380mm

10. Weight: 15Kg