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JJG 99-2022 English PDF

Q: How long will the true-PDF of English version of JJG 99-2022 be delivered?

Upon your order, we will start to translate JJG 99-2022_English as soon as possible, and keep you informed of the progress. The lead time is typically 6 ~ 9 working days. The lengthier the document the longer the lead time.

Q: Can I share the purchased PDF of JJG 99-2022_English with my colleagues?

Yes. The purchased PDF of JJG 99-2022_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Q: Does the price include tax/VAT?

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

Q: Do you accept my currency other than USD?

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.

Q: Should I purchase the latest version JJG 99-2022?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJG 99-2022 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$1619.00 · In stock
Delivery: <= 9 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJG 99-2022: Weights
Status: Valid

JJG 99: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJG 99-2022	1619	Add to Cart	9 days	Weights	Valid
JJG 99-2006	RFQ	ASK	10 days	Verification Regulation of weights	Obsolete
JJG 99-1990	959	Add to Cart	6 days	Verification Regulation of Weights	Obsolete
JJG 99-1981	RFQ	ASK	3 days	(Chinese Industry Standard)	Obsolete

Similar standards

GB/T 36126 JJG 139 GB/T 1885 JJG 98 JJG 105 JJG 099

Basic data

Standard ID: JJG 99-2022 (JJG99-2022)
Description (Translated English): Weights
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A53
Word Count Estimation: 80,816
Date of Issue: 2022-12-07
Date of Implementation: 2023-06-07
Issuing agency(ies): State Administration for Market Regulation

JJG 99-2022: Weights

---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.
National Metrology Verification Regulations of the People's Republic of China weights Weights Released on 2022-12-07 2023-06-07 Implementation Released by the State Administration for Market Regulation Weight Verification Regulations Replace JJG 99-2006 Responsible unit. National Mass Density Measurement Technical Committee Main drafting unit. China Institute of Metrology Participated in the drafting unit. Shanghai Institute of Metrology and Testing Technology China Institute of Testing Technology Tianjin Academy of Metrology Supervision and Testing Science Beijing Institute of Metrology and Testing Sciences Liaoning Institute of Metrology This regulation entrusts the National Mass Density Measurement Technical Committee to be responsible for interpretation The main drafters of this regulation. Zhong Ruilin (National Institute of Metrology) Participating drafters. Su Yi (Shanghai Institute of Metrology and Testing Technology) Dang Zhengqiang (China Academy of Testing Technology) Huang Aijun (Tianjin Academy of Metrology Supervision and Testing) Chen Xue (Beijing Institute of Metrology and Testing Sciences) Xu Hongguang (Liaoning Institute of Metrology)

Introduction (Ⅱ) 1 Scope(1) 2 References(1) 3 Terms and units of measurement(2) 3.1 Terminology(2) 3.2 Units of measurement(3) 3.3 Symbol table(4) 4 Overview(7) 5 Metrological performance requirements (7) 5.1 Maximum permissible error(7) 5.2 Expanded uncertainty (8) 5.3 Agreed quality(8) 6 General technical requirements (9) 6.1 Shape(9) 6.2 Structure (10) 6.3 Materials (12) 6.4 Magnetic(12) 6.5 Density(13) 6.6 Surface condition (14) 6.7 Adjustment(15) 6.8 Marking (16) 6.9 Weight box and weight label (17) 7 Measuring Instrument Control(18) 7.1 Verification items (18) 7.2 Test conditions (19) 7.3 Verification method (20) 7.4 Processing of test results (41) 7.5 Verification cycle (42) Appendix A Illustration of weights of different shapes and sizes (43) Appendix B Calculation formula of correction value when weights are combined and compared (47) Appendix C Uncertainty Calculation of Conventional Quality Measurement (49) Appendix D Formula for Calculating Air Density (CIPM Formula) (53) Appendix E Verification Record Form (56) Appendix F Test Certificate, Test Result Notification Inner Page Format (73)

Introduction

JJG 99 "Weights" is based on the technical recommendations of the International Organization of Legal Metrology (OIML) OIMLR111-1.2004 "E1, E2, F1, F2, M1, M1-2, M2, M2-3, M3 grade weights Part 1.Measurement technical requirements" And OIMLR111-2.2004 "E1, E2, F1, F2, M1, M1-2, M2, M2-3, M3 grade weights Part 2 Subdivision. Measurement Report Form" as the basis, and combined with China's national conditions, to revise JJG 99-2006.and Compared with JJG 99-2006, the main technical changes except editorial modifications are as follows. --- Added the description content of the introduction; --- Change "converted quality" to "agreed quality"; ---Added the method and record form of weight volume comparison; --- Added the measurement method and record form of the acoustic volume; --- Added the Gauss meter method to measure the polarization strength of the weight; --- Deleted the requirements for 1/6 and 1/9 of the measuring instrument; --- The magnetic verification period of weights has been adjusted accordingly, and the requirements for magnetic periodic verification have been added; --- Modified the formula for volume calculation of this component in the uncertainty component caused by air buoyancy in Appendix C; --- Modified the air density calculation formula in Appendix D, and changed the original CIPM-81/91 formula to CIPM- 2007 formula; --- Deleted Appendix G. The previous releases of JJG 99 are as follows. ---JJG 99-1981; ---JJG 99-1990. Weight Verification Regulations

1 Scope

1.1 This regulation is applicable to the 1mg Up to 5000kg weight. Special weights are used according to this regulation. In actual use of the regulations, the nominal value of the weight can be based on Scale up and down within the corresponding accuracy class as needed. 1.2 This regulation is applicable to the first verification of various weights (verification after repair is regarded as the first verification) and subsequent verification. 1.3 The weights of each accuracy level are traceable to the national quality standard. Weight accuracy classes are defined below. 1.3.1 E1 grade weights. used to verify E2 grade weights and corresponding measuring instruments, as well as corresponding measuring instruments used together with the device. 1.3.2 E2 grade weights. used to verify the weights and corresponding measuring instruments of F1 grade and below, and It should be used with appropriate measuring instruments. 1.3.3 F1 grade weights. used to test the F2 grade and below weights and corresponding measuring instruments, as well as corresponding The measuring instrument is used in conjunction with it. 1.3.4 F2 grade weights. used to verify the weights and corresponding measuring instruments of M1 grade, M12 grade and below, As well as supporting the use of corresponding measuring instruments. 1.3.5 M1 level weights. used to verify the weights and corresponding measuring instruments of M2 level, M23 level and below, As well as supporting the use of corresponding measuring instruments. 1.3.6 M2 grade weights. used to verify M3 grade weights and corresponding measuring instruments, as well as corresponding measuring instruments used together with the device. 1.3.7 M3 grade weights. used to verify the corresponding measuring instruments, and used in conjunction with the corresponding measuring instruments. 1.3.8 M12 grade and M23 grade weights. used to test the corresponding measuring instruments, and match with the corresponding measuring instruments set to use. 1.3.9 Special weights. with piston pressure gauge, dynamometer (meter), tensiometer, torque meter, torque meter, dynamometer Used in conjunction with other instruments, or used to verify standard rail scales, other units of value derived from mass units weights. 1.4 The weight used to verify the measuring instrument. if the actual mass value of the weight is used in the verification process, its The expanded uncertainty should not exceed 1/3 of the absolute value of the maximum allowable error of the instrument under this load. If the verification process If only the nominal value of the weight is used in the test, the maximum allowable error shall not exceed the maximum allowable error of the instrument under this load. 1/3 of the error.

2 References

This regulation refers to the following documents. JJF1001 General Metrology Terms and Definitions JJF1059.1 Evaluation and Expression of Measurement Uncertainty JJF1094 Characteristic evaluation of measuring instruments ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJG 99-2022_English be delivered?

Answer: Upon your order, we will start to translate JJG 99-2022_English as soon as possible, and keep you informed of the progress. The lead time is typically 6 ~ 9 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of JJG 99-2022_English with my colleagues?

Answer: Yes. The purchased PDF of JJG 99-2022_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.

Question 5: Should I purchase the latest version JJG 99-2022?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJG 99-2022 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.