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GB/T 35125-2017 English PDF

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US$279.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 35125-2017: Test methods for astronomical telescopes
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 35125-2017	279	Add to Cart	3 days	Test methods for astronomical telescopes	Valid

Similar standards

GB/T 22062 GB/T 4315.2 JY/T 011 GB/T 35126 GB/T 35124

Basic data

Standard ID: GB/T 35125-2017 (GB/T35125-2017)
Description (Translated English): Test methods for astronomical telescopes
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: N31
Classification of International Standard: 37.020
Word Count Estimation: 14,110
Date of Issue: 2017-12-29
Date of Implementation: 2018-07-01
Regulation (derived from): National Standards Bulletin 2017 No. 32
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

GB/T 35125-2017: Test methods for astronomical telescopes

---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.
Test methods for astronomical telescopes ICS 37.020 N31 National Standards of People's Republic of China Telescope test methods (ISO 14490-4.2005, Optics and optical instruments - Testmethodsfor 2017-12-29 Posted 2018-07-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard uses the redrafted method reference ISO 14490-4.2005 "Optical and optical instruments telephoto system test method part 4. Astronomical Telescope Test Method "prepared, and ISO 14490-4.2005 consistency is not equivalent. This standard is proposed by the China Machinery Industry Federation. This standard by the National Standardization Technical Committee of Optics and Photonics (SAC/TC103) centralized. This standard was drafted unit. Ningbo Cham Beijing Optical Instrument Co., Ltd., Guangzhou, Guangdong Optical Instrument Co., Ltd., Shanghai University of Technology, on Sea Optical Instrument Institute, Han's Laser Technology Industry Group Co., Ltd., Chongqing Ott Optical Instrument Co., Ltd., Ningbo Yongxin Optical Co., Ltd., Nanjing Jiangnan Yongxin Optical Co., Ltd., Ningbo Sunny Optical Instrument Co., Ltd., Nanjing East Lee to photoelectric Industrial Co., Ltd. Division, Ningbo City Teaching Instrument Co., Ltd., Wuzhou Oka Optical Instrument Company, Ningbo Huaguang Precision Instrument Co., Ltd., Mike Audi Industrial Group Company, Guiyang Xintian Optoelectronics Technology Co., Ltd. The main drafters of this standard. Bao Pengfei, Li Mi Gao, Feng Qionghui, Feng Jianguo, Wu Guomin, Mao Lei, Li Zhi, Hu Senhu, Hong Yiping, Wang Guorui, Zhang Jinghua, Xu Liming, Zhang Guangwei, Hu Qing. Telescope test methods

1 Scope

This standard specifies the terms and definitions of astronomical telescopes, test methods. This standard applies to observation in natural light astronomical telescope, the objective lens of the aperture of 150mm and below the refractive days Binoculars and Objectives Clear aperture of 250mm and below the reflective telescope.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 35126 Telescope terminology GB/T 13962 Optical instruments terminology GB/T 25480 Instrumentation transport, storage of the basic environmental conditions and test methods JB/T 9328-1999 resolution board

3 Terms and definitions

GB/T 35126, GB/T 13962 defined terms and definitions apply to this document.

4 test methods

4.1 Objective aperture clear aperture 4.1.1 Test Tools Vernier caliper. 4.1.2 Test Procedure Refractive. Use vernier caliper in the circumference of the uniform distribution of the four measurements of the inner diameter of the nosepiece. Reflex. Use vernier caliper measurements in the four locations evenly distributed around the circumference of the mirror objective lens inscribed circle diameter or reflective objective without occlusion Department of the lens diameter. Take the average value as the measured value, the measured value and the nominal aperture of the objective lens of the difference between the diameter of the objective lens is the aperture error. 4.2 refractive objective lens focal length 4.2.1 Test Tools Test tools are as follows. a) focal length meter or optical bench; b) reading microscope (for magnification method); c) Boluo board (for the magnification method); ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 35125-2017_English be delivered?

Answer: Upon your order, we will start to translate GB/T 35125-2017_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 35125-2017_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 35125-2017_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.