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JJF 1992-2022 English PDF

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US$549.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJF 1992-2022: Calibration Specification for Pyrgeometers
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJF 1992-2022	549	Add to Cart	5 days	Calibration Specification for Pyrgeometers	Valid

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Basic data

Standard ID: JJF 1992-2022 (JJF1992-2022)
Description (Translated English): Calibration Specification for Pyrgeometers
Sector / Industry: Metrology & Measurement Industry Standard
Word Count Estimation: 25,239
Date of Issue: 2022-09-26
Date of Implementation: 2023-03-26
Issuing agency(ies): State Administration for Market Regulation

JJF 1992-2022: Calibration Specification for Pyrgeometers

---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.
Calibration Specification for Pyrgeometers National Metrology Technical Specifications of the People's Republic of China Specifications for Calibration of Pyranometers Released on 2022-09-26 2023-03-26 Implementation Released by the State Administration for Market Regulation Specifications for Calibration of Pyranometers Pyrgeometers Responsible unit. National Meteorological Measuring Instruments Measuring Technical Committee Main drafting unit. Meteorological Observation Center of China Meteorological Administration Participating in the drafting unit. Jiangsu Radio Science Research Institute Co., Ltd. This specification entrusts the National Meteorological Measuring Instruments and Measuring Technical Committee to be responsible for interpretation The main drafters of this specification. Chongwei (Meteorological Observation Center of China Meteorological Administration) Ding Lei (Meteorological Observation Center of China Meteorological Administration) Bian Zeqiang (Meteorological Observation Center of China Meteorological Administration) Participating drafters. Sun Lixin (Jiangsu Institute of Radio Science Co., Ltd.) Yan Jiajun (Jiangsu Institute of Radio Science Co., Ltd.)

Introduction (Ⅱ) 1 Scope(1) 2 References(1) 3 Terms and units of measurement(1) 4 Overview(1) 5 Metrological characteristics(2) 5.1 Sensitivity and correction factor (2) 5.2 Stability(2) 6 Calibration conditions(2) 6.1 Environmental conditions (2) 6.2 Measuring standards and other equipment(2) 7 Calibration Items and Calibration Methods(3) 7.1 Calibration items(3) 7.2 Calibration method(3) 8 Expression of Calibration Results(6) 9 Recalibration interval(6) Appendix A Calculation Method of Longwave Radiation (7) Appendix B Calculation Method of Body Temperature and Cover Temperature of Pyranometer (9) Appendix C Uncertainty Assessment Example of Calibration Results (10) Appendix D Pyranometer Calibration Records (Reference Format) (15) Appendix E Calibration Certificate (Reference Format) (17)

Introduction

JJF 1071-2010 "Rules for Compilation of National Metrology Calibration Standards", JJF 1001-2011 "General Metrology Terminology and Definition" and JJF 1059.1-2012 "Assessment and Expression of Measurement Uncertainty" together constitute the basis for the formulation of this specification Basic series of specifications. This specification is published for the first time. Specifications for Calibration of Pyranometers

1 Scope

This specification is applicable to long-wave pyranometers (also known as "pyrometers") for measuring atmospheric radiation and earth radiation calibration.

2 References

This specification refers to the following documents. JJF 1001-2011 general measurement terms and definitions GB/T 31163-2014 Terminology of Solar Energy Resources GB/T 33701-2017 Long wave pyranometer IMO120 Davos Physical Observatory/World Radiation Center-Infrared Radiometry Pyranometer Calibration Procedure For dated references, only the dated version applies to this specification; for undated references document, its latest version (including all amendments) applies to this specification.

3 Terminology and units of measurement

3.1 Longwave radiation longwaveradiation Electromagnetic radiation with a wavelength between 3 μm and 100 μm. The ratio of the electrical signal output by the pyranometer to the net long-wave irradiance, in microvolts per square meter per watt (μV·m2·W-1).

4 Overview

The pyranometer is an instrument used to measure atmospheric long-wave radiation and earth long-wave radiation. Injection window cover, sensing device (black sensing surface and thermopile), temperature measuring element, radiation shield, horizontal bubble, meter body, It is composed of signal output terminal, level adjustment screw and other components, and the structure diagram is shown in Figure 1. Figure 1 Schematic diagram of the structure of a pyranometer 1-Longwave radiation incident window cover; 2-Induction device; 3-Temperature measuring element; 4-Radiation shield; 5-level bubble; 6-table body; 7-signal output terminal; 8-level adjustment screw ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJF 1992-2022_English be delivered?

Answer: Upon your order, we will start to translate JJF 1992-2022_English as soon as possible, and keep you informed of the progress. The lead time is typically 3 ~ 5 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of JJF 1992-2022_English with my colleagues?

Answer: Yes. The purchased PDF of JJF 1992-2022_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.