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  • BSI
    BS ISO 3058:1998 Non-destructive testing. Aids to visual inspection. Selection of low-power magnifiers
    Edition: 1998
    $266.02
    / user per year

Description of BS ISO 3058:1998 1998

1.1 This International Standard specifies the characteristics of the following types of low-power magnifiers and gives recommendations for their selection for the inspection of surfaces.

  • Single-element magnifiers of magnification typically up to ×4 (Type A).

  • Multi-element magnifiers of magnification typically up to ×10 (Type B).

  • Twin-system magnifiers of magnification typically up to ×15 (Type C), categorized as follows:

    1. binocular, normally with a long working distance (Type C.1);

    2. bi-ocular1), including those refined with stops or other attachments, for quasi-stereoscopic vision (Type C.2).

  • Concave-mirror magnifiers with front-surface reflectors in powers typically up to ×6 (Type D).

1.2 This International Standard is not concerned with:

  • watch-makers' loupes and spectacles;

  • single-element, spherical- or cylindrical-lens magnifiers in which either the lens or the lens-mount rests on the surface of the object to be examined (this includes magnifiers provided with any form of graduated scale for the purpose of measurement);

  • plastic lens sacs, liquid-filled;

  • magnifiers intended for the examination of internal surfaces.



Standard NumberBS ISO 3058:1998
TitleNon-destructive testing. Aids to visual inspection. Selection of low-power magnifiers
StatusDefinitive
Publication Date1998-05-15
ReplacesBS 5165:1974
Identical National Standard OfISO 3058:1998
DescriptorsTest equipment, Selection, Illuminance, Optical instruments, Lenses, Magnifiers, Visual inspection (testing), Non-destructive testing, Macroscopic examination, Dimensions
ICS19.100 Non-destructive testing
CommitteeWEE/46
ISBN0 580 29157 X
PublisherBSI
Pages12

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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