BS ISO 9344:2016 pdf free
BS ISO 9344:2016 pdf free.Microscopes一Graticules for eyepieces
This document specifies dimensions and permissible material defects and processing faults for graticules with diameters of 19 mm, 21 mm and 26 mm to be used in microscope eyepieces for the purposes of measurement, assessment and comparison.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments applies.
ISO 10110-1, Optics and photonics一 Preparation of drawings for optical elements and systems 一Part 1: General
ISO 10110-3, Optics and optical instruments一Preparation of drawings for optical elements and systems一Part 3: Material imperfections一Bubbles and inclusions
ISO 10110-4, Optics and optical instruments一Preparation of drawings for optical elements and systems一Part 4: Material imperfections一Inhomogeneity and striae
ISO 10110-5, Optics and photonics一Preparation of drawings for optical elements and systems一Part 5:Surface form tolerances
ISO 10110-7, Optics and photonics一Preparation of drawings for optical elements and systems一Part 7:Surface imperfection tolerances
ISO 10110-8, Optics and photonics一Preparation of drawings for optical elements and systems一Part 8:Surface texture; roughness and waviness
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
一IEC Electropedia: available at http://www.electropedia.org/
一ISO Online browsing platform: available at http://www.iso.org/obp
4 Requirements
4.1 Dimensions
Table 1 specifies the dimensions for Type 1 and Type 2 graticules.
4.2 Permissible material defects and processing faults
Table 2 specifies the permissions for Type 1 and Type 2 graticules.
5 Marking
To differentiate the commonly used Type 1 graticule form the smaller tolerance Type 2 graticule, the marking “Type 2 conforming to ISO 9344” shall be placed on the graticule itself or on the graticule packaging.
In accordance with ISO 10110-5, the first number after the defect code represents the maximum per-missible sagitta deviation, whereas the number in brackets gives the maximum permissible value of irregulari-ty. The number of fringe spacings is only used as the unit in this document.
Two scratches of unspecified length and the maximum width with the grade number 0,002 5 mm (0,004 mm for one scratch) are permissible. The symbol L indicates long scratch longer than 2 mm in ISO 10110-7. However, it means merely scratch with unspecified length in this document.BS ISO 9344 pdf download.
