PRODUCTION OF 35MM SERVICE COPY MICROFILM

国家医学图书馆是由美国国会授权的 各国收集和保存生物医学信息并使之成为 美国和世界医学从业者、研究人员、 和社区支持病人护理、医学教育和 研究。为了完成这项任务，国家航空航天局在过去30多年里， 用缩微胶片拍摄的脆性专著和丛书，并用于保护 对其藏品中的稀有和珍贵的材料进行处理。作为 缩微形式的收藏的百分比增加，它就变成了 对NLM来说，制作其缩微胶片的服务副本越来越重要 可供馆员现场使用和馆际互借 和购买申请。 这份合同规定快速生产高质量的三等品 已拍摄材料的新一代35 mm服务复印缩微胶片 是：1)被判定为具有文物价值或过于变质而不能用于 它们的原始格式；2)从NLM收藏中丢失并被借用 1989年9月之前从其他图书馆借出；3)馆际互借 贷款；4)申请购买。在第4)项的情况下，NLM应 向承包商提供买方允许复制的证明； 承包商应出示缩微胶片副本，并装运和开具帐单 直接卖给购买者。据估计，在25%的情况下 打印母版首先必须由档案相机底片制成 在服务复印件可以制作之前由承包商提供。

The National Library of Medicine is mandated by the Congress of the United States to collect and preserve biomedical information and to make this information available to US and world medical practitioners, researchers, and communities in support of patient care, medical education, and research. In fulfillment of this mission, NLM has, for over 30 years, microfilmed brittle monographs and serials and provided for conservation treatment of the rare and valuable materials in its collections. As the percentage of the collection that is in microform grows, it becomes increasingly important for NLM to make service copies of its microfilms available for on-site patron use and for fulfillment of interlibrary loan and purchase requests. This contract provides for the rapid production of high quality 3rd generation 35mm service copy microfilm for already filmed materials that are: 1) judged to be of artifactual value or too deteriorated for use in their original format; 2) missing from the NLM collection and borrowed from other libraries prior to September 1989; 3) requested on interlibrary loan; 4) requested for purchase. In the case of item 4), NLM shall provide the contractor with the purchaser's proof of permission to copy; the contractor shall produce the microfilm copy and shall ship and bill directly to the purchaser. It is estimated that in 25% of the cases a print master will first have to be made from the archival camera negative by the contractor before the service copy can be produced.