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GB/T 20968-2007 English PDF

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GB/T 20968-2007: Non-destructive testing -- Aids to visual inspection -- Selection of low-power magnifiers
Status: Valid
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 20968-2007English174 Add to Cart 3 days [Need to translate] Non-destructive testing -- Aids to visual inspection -- Selection of low-power magnifiers Valid GB/T 20968-2007

PDF similar to GB/T 20968-2007


Standard similar to GB/T 20968-2007

GB/T 20967   GB/T 19873.1   GB/T 19802   GB/T 30565   GB/T 33523.600   GB/T 19799.3   

Basic data

Standard ID GB/T 20968-2007 (GB/T20968-2007)
Description (Translated English) Non-destructive testing -- Aids to visual inspection -- Selection of low-power magnifiers
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard J04
Classification of International Standard 19.100
Word Count Estimation 9,956
Date of Issue 2007-07-02
Date of Implementation 2007-12-01
Adopted Standard ISO 3058-1998, IDT
Regulation (derived from) National Standard Announcement 2007 No.6 (Total No.106) (National-Standard-Commission)
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This standard specifies the following types of low- power magnifiers features. And recommended choice for surface testing. Single magnifying lens, typically four times amplification rate (A -type). Multi- piece mirror magnifying glass, typical amplification rate of 10 times (B type). Dual system member magnifier, typically 15 times amplification rate (C -type), the following two types: a) the binoculars usually have long working distance (C. 1 type), b) Binocular ", with fine or other accessories for stereoscopic viewing (C. 2 type) concave lens magnifying glass, fitted with a front surface mirrors, six times the rate of a typical amplification (D -type) this standard does not involve: watchmaker set in the orbital loupe and glasses, a lens or magnifying lens holder can be placed on a single subject surface mirror, spherical or cylindrical lens loupe (a magnifying glass for a variety of points, including with the scale of measurement), filled with liquid, liquid plastic lens capsule, for the inner surface inspection loupe.

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