描述
本公司進口之SCHOTT RD 50® 鉛玻璃為原材尺寸，可依需求裁切克定尺寸。
Technical data for RD 50®
Optical properties
Refractive index nD at 20°C 1.79
Light transmittance (d = 5.0 mm) 85%
Chemical properties
Hydrolytic class according to DIN ISO 719 HGB 1
Lead oxide content (PbO) ≥ 65%
Total heavy metal content ≥ 70%
Mechanical properties
Density in g/cm3 (as-delivered condition) ≥ 5.05
Other properties
Glass thickness 8.1 mm*
Evaluated sound insulation value Rw (C; Ctr ) = 41 (–3; –3) dB
