GB/T 22059-2018 English PDF

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GB/T 22059-2018: Microscopes -- Values, tolerances and symbols for magnification
Status: Valid

GB/T 22059: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 22059-2018	119	Add to Cart	3 days	Microscopes -- Values, tolerances and symbols for magnification	Valid
GB/T 22059-2008	319	Add to Cart	3 days	Microscopes -- Magnifying power	Obsolete

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Basic data

Standard ID: GB/T 22059-2018 (GB/T22059-2018)
Description (Translated English): Microscopes -- Values, tolerances and symbols for magnification
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: N32
Classification of International Standard: 37.020
Word Count Estimation: 6,644
Date of Issue: 2018-12-28
Date of Implementation: 2019-07-01
Older Standard (superseded by this standard): GB/T 22059-2008
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 22059-2018: Microscopes -- Values, tolerances and symbols for magnification

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Microscopes--Values, tolerances and symbols for magnification ICS 37.020 N32 National Standards of People's Republic of China Replace GB/T 22059-2008 Microscope magnification values, tolerances, and symbols (ISO 8039.2014, MOD) Published on.2018-12-28 2019-07-01 implementation State market supervision and administration China National Standardization Administration issued

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 22059-2008 "Microscope Magnification". This standard is mainly changed compared with GB/T 22059-2008 as follows. --- Modified the standard name; --- Chapter 2 normative reference file added GB/T 27668.1, deleted GB/T 321; --- Chapter 3 was revised to "the terms and definitions defined in GB/T 27668.1 apply to this document" and deleted 3.1~3.9; --- In Table 1, the lens barrel coefficient is changed to "barrel lens", the projection coefficient of the real image is deleted, and the "priority" and "replacement" in the representation are deleted. Division --- Removed the calculation method of Chapter 5; --- Increase the value of 0.7 in Note 3 of Table 2; --- Table 3 in the lens barrel coefficient changed to "barrel lens", the projection factor was changed to "projection lens"; --- Added references. This standard uses the redrafting method to modify the ISO 8039.2014 "Microscope magnification values, tolerances and symbols". There are technical differences between this standard and ISO 8039.2014, and the terms involved in these differences have been passed through the margins on the outer side of the page. The vertical single line (|) is marked. The main technical differences between this standard and ISO 8039.2014 are as follows. --- Increased the scope of application of the standard; ---About the normative reference documents, this part has made technical adjustments to adapt to China's technical conditions, specific The national standards are as follows. ● Replace ISO 10934-1 with GB/T 27668.1 modified to international standards. This standard has made the following editorial changes. --- Increase the value of 0.7 in Note 3 of Table 2 in Chapter 5. This standard was proposed by the China Machinery Industry Federation. This standard is under the jurisdiction of the National Optical and Photonics Standardization Technical Committee (SAC/TC103). This standard is mainly drafted by. Ningbo Yongxin Optical Co., Ltd., Guangzhou Yuexian Optical Instrument Co., Ltd., Ningbo Teaching Instrument Co., Ltd., Ningbo Zhanjing Optical Instrument Co., Ltd., Shanghai University of Technology, Nanjing Donglilai Optoelectronic Industry Co., Ltd., Luzhou Card Optical Instrument Co., Ltd., McAudi Industrial Group Co., Ltd., Nanjing Jiangnan Yongxin Optical Co., Ltd., Ningbo Haoyu Instrument Co., Ltd., Ning Bohuaguang Precision Instrument Co., Ltd. The main drafters of this standard. Mao Lei, Xu Tao, Cui Zhiying, Wang Guorui, Xiong Shouyu, Huang Weijia, Zhang Huixian, Hong Yiping, Zhang Wei, Zhang Guangwei, Li Wei, Hu Senhu, Xu Liming. The previous versions of the standards replaced by this standard are. ---GB/T 22059-2008. Microscope magnification values, tolerances, and symbols

1 Scope

This standard specifies the numerical series, tolerances and symbols of the magnification of imaging components of visible light microscopes and the several amplification systems used. This standard applies to visible light microscopes.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 27668.1 Microscope terminology Part 1. Optical microscopy (GB/T 27668.1-2011, ISO 10934-1.2002, MOD)

3 Terms and definitions

The terms and definitions defined in GB/T 27668.1 apply to this document.

4 imaging unit magnification symbol

See Table 1 for examples of symbols and representations that are recommended for magnification of imaging components and combinations thereof. Table 1 Magnification symbol and representation Part symbol representation Objective lens a) The initial image distance correction is limited b) The initial image distance correction is infinity M0 M0∞ M0=25.1 M0∞=25× 25.1 or 25 25× Eyepiece ME ME=10× 10× Lens barrel lens qq=1.25× 1.25 Projection lens MPHOT MPHOT=2.5.1 2.5.1 Total microscope magnification a) visual observation b) real image MTOTVIS MTOTPROJ MTOTVIS=500× MTOTPROJ=500.1 500× 500.1

5 Magnification values and tolerances

5.1 Magnification value The value of the imaging component or imaging system magnification should be one of the values listed in Table 2, the product of the quotient of any two numbers in this table. ......

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