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JJG 272-2024 English PDF

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Upon your order, we will start to translate JJG 272-2024_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

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Q: Should I purchase the latest version JJG 272-2024?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJG 272-2024 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$359.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJG 272-2024: Verification Regulation of Aneroid Barometers and Aneroid Barographs
Status: Valid

JJG 272: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJG 272-2024	359	Add to Cart	4 days	Verification Regulation of Aneroid Barometers and Aneroid Barographs	Valid
JJG 272-2007	759	Add to Cart	4 days	Verification Regulation of Aneroid Barometer and Aneroid Barograph	Obsolete
JJG 272-1991	439	Add to Cart	4 days	Verification Reguiation of Aneroid Barograph and Aneroid Barometer	Obsolete
JJG 272-1981	RFQ	ASK	3 days	(Chinese Industry Standard)	Obsolete

Basic data

Standard ID: JJG 272-2024 (JJG272-2024)
Description (Translated English): Verification Regulation of Aneroid Barometers and Aneroid Barographs
Sector / Industry: Metrology & Measurement Industry Standard
Word Count Estimation: 17,188
Date of Issue: 2024-09-18
Date of Implementation: 2024-12-18
Issuing agency(ies): State Administration for Market Regulation

JJG 272-2024: Verification Regulation of Aneroid Barometers and Aneroid Barographs

---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 Verification procedures for empty box barometers and empty box barometers (OIMLR97.1990, Barometers, NEQ) Released on 2024-09-18 Implementation on 2024-12-18 The State Administration for Market Regulation issued Empty box barometer and empty box barometer Verification procedures Replaces JJG 272-2007 Responsible unit. National Meteorological Special Measuring Instruments Metrology Technical Committee Meteorological Pressure Technical Committee Main drafting unit. Meteorological Observation Center of China Meteorological Administration Zhejiang Atmospheric Detection Technology Support Center Participating in the drafting. Heilongjiang Meteorological Data Center Liaoning Provincial Meteorological Equipment Support Center Tibet Autonomous Region Atmospheric Sounding Technology and Equipment Support Center This regulation is entrusted to the National Meteorological Special Measuring Instruments Measurement Technical Committee Meteorological Pressure Technical Committee The committee is responsible for explaining The main drafters of this regulation are. Yu Hejun (Meteorological Observation Center, China Meteorological Administration) Ding Hongying (Meteorological Observation Center, China Meteorological Administration) Luo Chang (Zhejiang Atmospheric Sounding Technology Support Center) Participating drafters. Sun Zhe (Heilongjiang Meteorological Data Center) Sally (Liaoning Meteorological Equipment Support Center) Suolang Duobujie (Tibet Autonomous Region Atmospheric Sounding Technology and Equipment Support Center) Chen Hua (Tibet Autonomous Region Atmospheric Sounding Technology and Equipment Support Center)

Introduction (II) 1 Scope(1) 2 References(1) 3 Units of measurement (1) 4 Overview(1) 5 Metrological performance requirements (1) 6 General technical requirements (2) 6.1 Appearance(2) 6.2 Other requirements(2) 7 Measuring instrument control (3) 7.1 Verification conditions (3) 7.2 Verification Items (3) 7.3 Verification methods (3) 7.4 Processing of test results (6) 7.5 Verification cycle (6) Appendix A Empty Box Barometer, Empty Box Barometer Calibration Data Record Sheet (7) Appendix B Empty Box Barometer Normal Pressure Calibration Method (8) Appendix C Format of the inner pages of the verification certificate (10) Appendix D Format of the inner page of the verification result notification (11)

Introduction

JJF1002 "Rules for the Preparation of National Metrology Verification Procedures", JJF1001 "General Metrology Terms and Definitions", JJF1008 "Terms and Definitions of Pressure Measurement" and JJF1059.1 "Evaluation and Expression of Uncertainty in Measurement" It constitutes the basic series of specifications for the formulation of this regulation. This regulation refers to the International Organization of Legal Metrology (OIML) R97 (1990 edition) International Recommendation "Air Pressure Barometers. This regulation is based on JJG 272-2007 "Empty Box Barometer and Empty Box Barometer Verification Regulation", and retains Compared with JJG 272-2007, this regulation has been revised based on the premise of effective content. The main technical changes are as follows. --- Added reference documents and measurement unit chapters according to the requirements of JJF1002-2010; --- The verification method was adjusted and standardized; ---Some calculation formulas in data processing have been adjusted. The previous versions of JJG 272 are as follows. ---JJG 272-2007; ---JJG 272-1991; ---JJG 272-1981. Verification procedures for empty box barometers and empty box barometers

1 Scope

This procedure applies to the initial verification, subsequent verification and in-use inspection of empty box barometers and empty box barometers.

2 References

This regulation refers to the following documents. JJF1001-2011 General metrological terms and definitions JJF1008-2008 Pressure measurement terms and definitions For any referenced document with a date, only the version with the date is applicable to this Regulation; for any referenced document without a date, The latest version (including all amendments) shall apply to this regulation.

3 Units of measurement

The pressure unit of the air box barometer and air box barometer is hectopascal (hPa).

4 Overview

Air box barometers and air box barometers are instruments used to measure atmospheric pressure. The empty box barometer converts the elastic deformation of the diaphragm box caused by atmospheric pressure into the corresponding The atmospheric pressure is measured by the amount of pointer rotation. Air box barometers are generally divided into precision air box barometers and ordinary air box barometers. The measurement range of precision air box barometer and ordinary air box barometer is (800~1060)hPa, The measuring range of the plateau air box barometer is (500~1060)hPa or (500~1030)hPa. The empty box barometer is a device that uses the elastic deformation of the diaphragm box caused by atmospheric pressure to make the self-recording pen tip The corresponding air pressure value is recorded on the time-pressure coordinate recording paper to form a time-pressure recording curve to measure and record The air box barometer is used to record atmospheric pressure. The air box barometer is divided into two types according to the recording period. diary type and weekly type. The range is any 90 hPa within (870~1050) hPa or (600~1060) hPa. 5.Metrological performance requirements The metrological performance of the empty box barometer and empty box manometer shall comply with the requirements of Table 1. Table 1 Measurement performance requirements Instrument name Precision empty box barometer Ordinary empty box barometer Plateau empty box barometer Empty box barometer Temperature coefficient /(hPa·℃-1) Not more than ±0.10 Not more than ±0.13 Not more than ±0.26 Not more than ±0.13 10 hPa point Indication correction value /hPa The upper and lower limits of the measuring range are not More than ±1.4, the rest Each point does not exceed ±1.2 Not more than ±2.5 Not more than ±4.0 Error of pen position midpoint When it is 0.0, measure The upper and lower limits of the range do not exceed Over ±1.5 ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJG 272-2024_English be delivered?

Answer: Upon your order, we will start to translate JJG 272-2024_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of JJG 272-2024_English with my colleagues?

Answer: Yes. The purchased PDF of JJG 272-2024_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 272-2024?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJG 272-2024 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.