针对底片评定工作中常见的深孔评定争议,提出制作深孔对比试块的方法,对深孔试块拍片后保存作为对比试片在评片工作中参考使用,使深孔缺陷定性准确,有效避免争议,并能为产品安全性能评估提供依据。 Aiming at the controversy of deep hole appraisal which is common in negative film evaluation work, a method of making deep hole contrasting test block is put forward. The deep hole test piece is saved as a contrast test piece for reference in the filming work, making the deep hole defect qualitatively accurate and effective Avoid disputes, and provide a basis for product safety assessment.