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一、字迹褪变实验1、实验仪器:紫外光照箱:401B型热老化箱;YQ-25D型气流式盐雾腐蚀箱;DL-302型调温调湿箱;WCSC-1型色差计;ZBD型白度仪;TG-328B型电光分析天平;PHS-25C型酸度仪。2、实验试样:(1)纸张载体:70克A4中性复印纸;(2)?
First, the writing fade experiments 1, experimental equipment: UV light box: 401B heat aging tank; YQ-25D-type flow of salt spray corrosion chamber; DL-302-type thermostat humidity box; WCSC-1-type colorimeter; ZBD Type whiteness meter; TG-328B electro-optical analytical balance; PHS-25C acidity meter. 2, the experimental sample: (1) paper carrier: 70 g A4 neutral copy paper; (2)