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JJG 802-2019 English PDF

Q: How long will the true-PDF of English version of JJG 802-2019 be delivered?

Upon your order, we will start to translate JJG 802-2019_English as soon as possible, and keep you informed of the progress. The lead time is typically 4 ~ 6 working days. The lengthier the document the longer the lead time.

Q: Can I share the purchased PDF of JJG 802-2019_English with my colleagues?

Yes. The purchased PDF of JJG 802-2019_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

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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). Avoidance of Double Taxation Agreements (DTAs) between Singapore and 100+ Countries: https://www.iras.gov.sg/taxes/international-tax

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Q: Should I purchase the latest version JJG 802-2019?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJG 802-2019 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.

US$599.00 · In stock
Delivery: <= 6 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJG 802-2019: Distortion Meter Calibrators
Status: Valid

JJG 802: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJG 802-2019	599	Add to Cart	6 days	Distortion Meter Calibrators	Valid
JJG 802-1993	479	Add to Cart	3 days	Verification Regulation of Distortion Meter Calibrator	Obsolete

Similar standards

GB/T 3222.1 JJF 1234 JJF 1396 JJG 488 JJG 603 JJG 238

Basic data

Standard ID: JJG 802-2019 (JJG802-2019)
Description (Translated English): Distortion Meter Calibrators
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A57
Classification of International Standard: 17.080
Word Count Estimation: 26,285
Date of Issue: 2019
Date of Implementation: 2020-03-27
Issuing agency(ies): State Administration for Market Regulation

JJG 802-2019: Distortion Meter Calibrators

---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.
Distortion Meter Calibrators National Measurement Verification Regulations of the People's Republic of China Distortion meter calibrator 2019-09-27 release 2020-03-27 Implementation Issued by the State Administration of Market Supervision and Administration Verification Regulation of Distortion Meter Calibrator Replace JJG 802-1993 Focal point. National Radio Measurement Technical Committee Main drafting unit. Zhejiang Institute of Metrology Chinese Academy of Metrology Participated in the drafting unit. Shanghai Institute of Metrology and Testing Technology No. 203, Second Institute of China Aerospace Science and Industry Corporation The National Radio Measurement Technical Committee is entrusted with the interpretation of this regulation The main drafters of this regulation. Gu Xiazhen (Zhejiang Institute of Metrology) Chen Jing (Zhejiang Institute of Metrology) Li Hang (Chinese Academy of Metrology) Participating drafters. Xu Zhaohui (Shanghai Institute of Measurement and Testing Technology) Wang Lifeng (Chinese Academy of Metrology) Chen Xiquan (Zhejiang Institute of Metrology) Miao Miao (No. 203, Second Institute of China Aerospace Science and Industry Corporation)

Introduction (Ⅱ) 1 Scope (1) 2 Overview (1) 3 Measurement performance requirements (1) 3.1 Frequency (1) 3.2 Oscillator waveform distortion (1) 3.3 Amplitude stability (1) 3.4 Maximum allowable error of harmonic partial pressure (1) 3.5 Basic error of voltmeter and maximum allowable error of frequency response (1) 4 General technical requirements (2) 5 Control of measuring instruments (2) 5.1 Verification conditions (2) 5.2 Verification items and verification methods (3) 5.3 Processing of verification results (6) 5.4 Verification period (6) Appendix A Verification of the original record format (7) Appendix B Format of the inner pages of the certificate of verification/certification result (13) Appendix C Verification Certificate/Verification Result Notification Verification Results Page (14) Appendix D. Superposition error verification method (21)

Introduction

This regulation is based on the requirements in the National Metrology Technical Specification JJF1002 "Rules for Compiling National Metrology Verification Regulations". It is a revision of JJG 802-1993. Compared with JJG 802-1993 "Distortion Tester Verification Device", the main technical The changes are as follows. --- Increase "Introduction". --- Widened the scope of application of the regulations. the standard distortion range 0.03% ~ 100% changed to 0.003% ~ 100%. --- Improved some measurement performance requirements. if the maximum allowable frequency error is changed from ± (3% reading 1Hz) ± (2% reading 0.1Hz); amplitude stability changed from better than 0.5%/15min to better than 0.2% / 15min; the optimal requirement of harmonic partial voltage error is changed from ± (0.5% reading 30μV) to ± (0.2% reading Count 20μV). --- Improved the technical requirements of the measuring standard used. --- Increase the measurement performance of harmonic oscillator output waveform distortion and the corresponding verification method. --- Superposition error verification method moved from the text to Appendix D. --- Removed the overall verification method for the calibrator of the distortion meter. --- Removed the measurement standard of passive notch filter. The release of previous versions of this regulation. --- JJG 802-1993. Distortion meter calibrator

1 Scope

This regulation applies to the frequency range of 5Hz ~.200kHz, the standard distortion range of 0.003% ~ 100% Verification of the calibrator of the distortion meter.

2 Overview

Distortion meter calibrator is a harmonic distortion designed by using fundamental wave and second harmonic method to generate standard distortion source. Wave distortion measurement standard. It is mainly composed of independent low distortion fundamental wave oscillator, second harmonic oscillator, high precision harmonic It consists of voltage divider, voltmeter, fundamental and harmonic superposition circuit, and low-noise power supply. Standard instrument for measuring and calibrating distortion measuring instruments and audio analyzers.

3 Measurement performance requirements

3.1 Frequency The fundamental frequency range. 5Hz ~.200kHz, the maximum frequency error. ± (2% reading 0.1Hz). Harmonic frequency range. 10Hz ~ 400kHz, maximum frequency error. ± (2% reading 0.1Hz). 3.2 Oscillator waveform distortion 3.2.1 Distortion of fundamental oscillator waveform ≤1/3 Output the minimum value of standard distortion. 3.2.2 Harmonic oscillator waveform distortion < 1.0% (10Hz≤f < 20kHz); < 2.0% (20kHz≤f≤400kHz). 3.3 Stability of amplitude Amplitude range. 1V or 3V. Fundamental signal amplitude stability. ≤0.2%/15min. Harmonic signal amplitude stability. ≤0.2%/15min. 3.4 Maximum allowable error of harmonic partial pressure ± (2% reading 30μV) (10Hz≤f < 20Hz); ± (1% reading 30μV) (20Hz≤f < 100Hz); ± (0.2% reading 20μV) (100Hz≤f < 40kHz); ± (0.5% reading 30μV) (40kHz≤f < 200kHz); ± (2.5% reading 30μV) (200kHz≤f≤400kHz). 3.5 Basic error of voltmeter and maximum allowable error of frequency response Basic error of voltmeter. ± 0.3% (1kHz). Maximum allowable error of frequency response. ± 0.3% (5Hz ~ 400kHz) (based on 1kHz). ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJG 802-2019_English be delivered?

Answer: Upon your order, we will start to translate JJG 802-2019_English as soon as possible, and keep you informed of the progress. The lead time is typically 4 ~ 6 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of JJG 802-2019_English with my colleagues?

Answer: Yes. The purchased PDF of JJG 802-2019_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.

Question 5: Should I purchase the latest version JJG 802-2019?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJG 802-2019 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.