BS 7012-4.1-1998
光学显微镜.显微镜物镜和物镜旋座规范.螺纹类型有效值(4/5in和1/36in)已作废

Light microscopes - Specification for microscope objective and nosepiece screw threads - Screw thread type RMS (4/5 in x 1/36 in)

BS 7012-4.1-1998 发布历史

This part of ISO 8038 specifies the dimensions of screw thread type RMS as one type of thread for connecting a microscope objective to the nosepiece. NOTE 1 The values given in this part of ISO 8038 conform, except for the length of the thread lug, to the internationally used screw thread laid down by the Microscopical Society of London in 1858, and published [1] as the Royal Microscopical Society Standard (RMS Standard) in 1936. The use of this screw thread is recommended for microscopes unless other fittings are required for optical or design reasons. NOTE 2 A specific combination of eyepiece, objective and tube lens (if provided, e.g. infinity optics) is frequently used to correct aberrations. Therefore the combination of an objective from one manufacturer, although conforming to this part of ISO 8038, and an eyepiece from another manufacturer may cause loss of image quality. Objectives and eyepieces of one manufacturer can be combined with microscopes of another manufacturer if they conform to this part of ISO 8038 and also to ISO 9345-1 [2]. note:1) The maximum length of the thread lug according to this part of ISO 8038 is 5 mm. The RMS Standard specifies the length of the thread as 3,175 mm and length of the guide cylinder as 2,540 mm, giving a total of 5,715 mm.

BS 7012-4.1-1998由英国标准学会 GB-BSI 发布于 1998-03-15，并于 1998-03-15 实施，于 2011-06-30 废止。

BS 7012-4.1-1998 在中国标准分类中归属于: N32 放大镜与显微镜，在国际标准分类中归属于: 37.020 光学设备。

BS 7012-4.1-1998的历代版本如下：

• 1998年03月15日 BS 7012-4.1-1998 光学显微镜.显微镜物镜和物镜旋座规范.螺纹类型有效值(4/5in和1/36in)

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标准号

BS 7012-4.1-1998

发布日期

1998年03月15日

实施日期

1998年03月15日

废止日期

2011-06-30

中国标准分类号

N32

国际标准分类号

37.020

发布单位

GB-BSI

代替标准

BS ISO 8038-2011

适用范围

This part of ISO 8038 specifies the dimensions of screw thread type RMS as one type of thread for connecting a microscope objective to the nosepiece. NOTE 1 The values given in this part of ISO 8038 conform, except for the length of the thread lug, to the internationally used screw thread laid down by the Microscopical Society of London in 1858, and published [1] as the Royal Microscopical Society Standard (RMS Standard) in 1936. The use of this screw thread is recommended for microscopes unless other fittings are required for optical or design reasons. NOTE 2 A specific combination of eyepiece, objective and tube lens (if provided, e.g. infinity optics) is frequently used to correct aberrations. Therefore the combination of an objective from one manufacturer, although conforming to this part of ISO 8038, and an eyepiece from another manufacturer may cause loss of image quality. Objectives and eyepieces of one manufacturer can be combined with microscopes of another manufacturer if they conform to this part of ISO 8038 and also to ISO 9345-1 [2]. note:1) The maximum length of the thread lug according to this part of ISO 8038 is 5 mm. The RMS Standard specifies the length of the thread as 3,175 mm and length of the guide cylinder as 2,540 mm, giving a total of 5,715 mm.