ZAB5
中性灰玻璃
photography
general-optics
2mm
光谱透过率曲线
曲线依据原厂样本手工描点还原，仅供选型参考，最终以实测报告为准。
技术要求
| 厚度 | 2mm |
| 平均透过率(标准) | 5.0% |
| 公差范围 | 1.0~9.0% |
| Qz | ≤5.0% |
国内外牌号对照
五机部
AB3
苏联(原)
HC3
物理特性
| 折射率 Nd | 1.505 |
| 线膨胀系数 α | 65×10⁻⁷/°C |
| 转变温度 Tg | 469°C |
| 软化温度 Ts | 582°C |
| 密度 S | 2.42 |
| 耐酸性 DA | 5 |
| 耐水性 DW | 4 |
气泡 C-B
条纹 4
应力 3
Tested over 440-660nm per the catalogue's introductory note (one of three grades — ZAB5, ZAB30, ZAB65 — measured on a narrower band than the standard 400-700nm range). Chromaticity data not published for this grade. Re-digitized against the clean sequential-page scan (full 200-2500nm plotted curve, distinct double-peak shape with lobes near 400nm and 670nm); curve reads genuinely ~0% from 200-320nm (UV cutoff) rising to ~57% at the 2500nm right edge.