GB/T 33869-2017 English PDF

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GB/T 33869-2017: Comparison method for absolute pyrheliometer
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 33869-2017	199	Add to Cart	3 days	Comparison method for absolute pyrheliometer	Valid

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Basic data

Standard ID: GB/T 33869-2017 (GB/T33869-2017)
Description (Translated English): Comparison method for absolute pyrheliometer
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A47
Classification of International Standard: 07.060
Word Count Estimation: 10,184
Date of Issue: 2017-07-12
Date of Implementation: 2018-02-01
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 33869-2017: Comparison method for absolute pyrheliometer

---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.
Comparison method for absolute pyrheliometer ICS 07.060 A47 National Standards of People's Republic of China Absolute Direct Radiation Table Comparison Method 2017-07-12 released 2018-02-01 Implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released Directory Preface III 1 Scope 1

2 terms and definitions

3 match condition 1 4 Matching Method 2 5 data processing 2 Matching Results 4 7 Matching time interval 4 Reference 5

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard is proposed by the China Meteorological Administration. This standard is nationalized by the National Standardization Technical Committee for Meteorological Instruments and Observation Methods (SAC/TC507). The drafting unit of this standard. National Meteorological Metering Station, Yunnan Province, atmospheric detection and security center, Jiangsu Province Radio Science Research Institute Co., Ltd. The main drafters of this standard. Yang Yun, Ding Lei, Quan Jimei, Chong Wei, Lin Bing, Wang Yunkun, Hu Mei, Wang Xin, Zhu Ya, Xu Yigang, Yan Jiajun. Absolute Direct Radiation Table Comparison Method

1 Scope

This standard specifies the relative direct radiation table alignment conditions, alignment methods, data processing, alignment results and alignment time interval. This standard applies to the comparison of absolute direct radiation tables.

2 terms and definitions

The following terms and definitions apply to this document. 2.1 Cavity type absolute direct radiation table absolutecavitypyrheliometer A direct irradiance measuring instrument with a cavity receiver and self-calibrating using an electrical alternative. Note. divided into active and passive two. 2.2 Compensated absolute direct radiation table compensatedpyrheliometer Aischro direct radiation table Ångströmpyrheliometer A receiver with two parallel inductive slices and a self-calibrating direct irradiance measuring instrument using an electrical alternative. 2.3 Comparison comparison Under the specified conditions, the same accuracy level or the specified uncertainty range of the same kind of measurement equipment to reproduce the value of the comparison between process.

3 match the conditions

3.1 Environmental conditions 3.1.1 around the open, the instrument sensor surface above no obstacles. 3.1.2 sunny sky, the sun direct irradiance of not less than 700W · m-2, should be in place between 10 pm and 14 o'clock. 3.1.3 air temperature in the range of 10 ℃ ~ 30 ℃, the relative humidity should not be greater than 80%, the wind speed should be less than 3m/s. 3.2 standard and ancillary equipment Technical indicators should meet the following requirements. a) Solar radiation measurement standard group. at least three different types of cavities that are traceable to the World Radiation Benchmark (WRR) Absolute direct radiation table, the uncertainty should not be greater than 0.3%. b) digital instrument. 0.05, the resolution should not be greater than 1μV. c) sun tracker. tracking error should not be greater than 0.25 °. d) environmental measuring instruments. technical indicators in Table 1. ......

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