L7-M型工业探伤胶片是按照高起点高标准研制开发的，从乳剂合成到涂布工艺，采用了一系列的新技术、新材料，是工业探伤射线摄影理想的胶片。

Lucky Industrial x-ray Film L7-M is producted by China Lucky Film Corp.lis designed in accordance with advanced standardA series of new materials

and technology be used from emulsion- making to coating. It is an ideal filmfor industrial non-destructive inspection photographing

特点与用途 FEATURES AND USAGES

乐凯L7型工业胶片采用蓝色涤纶片基作为支持体，双面涂布感光乳剂膜，属于射线感光速度较快、微颗粒、高反差的片种。其微细的卤化银晶体

颗粒及良好的分布状态，经过特殊处理的感光涂层及合理的涂层结构，使其具有高质量判别缺陷的能力。广泛用于黑色金属、有色金属及其合金或其它

衰变系数较小的材料制作的器件、型材、零件或焊缝的无损X射线检测。

Lucky Industrial x-ray Film L7 is doublecoated on bluish polyester baseIt is high speed with

small grain and high contrast.It has perfect ability to find the defect exactly because of its excellen

structure of emulsion-grain and coating-layer.It is widely used in non-destructive x-ray inspection

for parts,components, shaped materials or welding seams made of ferrous, non-ferrous metals anc

their alloys or other materials with low attenuation coefficient

安全照明 SAFEILLUMINATION

本产品可用透光范围大于630nm的乐凯LZ-2或柯达No-2暗红色安全灯片或其它类似灯片做冲洗加工或检查的安全照明灯，15瓦灯泡距胶片至少1.2米

远。

This film can be processed and inspected under dark red safelight Filter of Lucky LZ-2 or KodakNo.2 or other equivalent filters with transmitting range         over 630nm. A 15W safe-lamp should keep1.2 meter away from the film.

冲洗加工 PROCESSING

乐凯L7-M型工业胶片冲洗加工的工艺可以是常温手工冲洗，也可以高温机器冲洗，现推荐常温手工冲洗的工艺条件如下

Lucky Industrial x-ray Film L7 is compatible with various processing machines and it carbe processed by hand in normal temperature as the follow                conditions

     规格包装：

  注意事项REMARK

未曝光胶片应原封装储存于清洁、无尘，没有氨气、硫化氢气体和没有射线的地方。湿热对胶片有不利影响。推荐在温度21℃以下，湿度65%RH以下环境中储存。对已开封的胶片，其理想储存湿度为30%RH-50%RH

Unexposed film should be kept in original packages and stored in places where should be clean,no dust,free from ammoniahydrosulfuric gases and penetrating radiation.The film is adversely affected by heat and humidity.The recommandatary storagetemperature is bellow 21℃ and humidity bellow 65%RH.For unsealed filmthe ideal humidity is from 30%RH-50%RH

包装胶片应立放以避免胶片产生压痕

The film packages should be placed on edge to avoid pressure marking the film

低温下保存的胶片使用时应提前取出，在室温条件下放置4小时以上再打开包装使用，以免水汽凝结胶片表面损坏胶片。

The film storaged at low temperature should be conditioned at room temperature for more than 4 hours before opening thepackage for using in order to prevent condensation on film surface and degradation of the film.

胶片的照相性能会随保存时间而改变，应在保证期内使用。已曝光胶片应尽快冲洗加工。

The photographic properties may change during age,therefore the film should be used in guaranty period. The

exposed film should be processed an soon as possible

胶片应小心拿放以避免因挤压、折叠、扭弯和摩擦产生物理损伤，还应十分注意在加工前后不要用湿手去触拿胶片。

The film should be handled carefully to avoid physical strains caused by pressurecreasing,buckling andfriction.Highly attention must be pay not to touch or grasp the film with wet hands before and after processing