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JJG 876-2019 English PDF

Q: How long will the true-PDF of English version of JJG 876-2019 be delivered?

Upon your order, we will start to translate JJG 876-2019_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.

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Q: Should I purchase the latest version JJG 876-2019?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJG 876-2019 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$509.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJG 876-2019: Ship Meteorological Instruments
Status: Valid

JJG 876: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJG 876-2019	509	Add to Cart	5 days	Ship Meteorological Instruments	Valid
JJG 876-1994	799	Add to Cart	4 days	Verification Regulation of Ship Meteorological Instrument	Obsolete

Similar standards

JJG 882 GB/T 36126 GB/T 1885 JJG 875 JJG 877

Basic data

Standard ID: JJG 876-2019 (JJG876-2019)
Description (Translated English): Ship Meteorological Instruments
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A53
Classification of International Standard: 17.020
Word Count Estimation: 22,228
Date of Issue: 2019
Date of Implementation: 2020-03-27
Issuing agency(ies): State Administration for Market Regulation

JJG 876-2019: Ship Meteorological Instruments

---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.
Ship Meteorological Instruments National Measurement Verification Regulations of the People's Republic of China Ship weather instrument 2019-09-27 release 2020-03-27 Implementation Issued by the State Administration of Market Supervision and Administration Verification Regulations for Ship Meteorological Instruments Replace JJG 876-1994 Focal point. National Technical Committee for Measuring Special Marine Measuring Instruments Main drafting unit. East China Sea Standard Metrology Center, State Oceanic Administration Participated in the drafting unit. Beihai Standard Measurement Center of the State Oceanic Administration South China Sea Standard Metrology Center of State Oceanic Administration This Regulation is entrusted to the National Technical Committee for Measuring Special Marine Instruments for interpretation The main drafters of this regulation. Zhao Xiuling (National Oceanic Administration East China Sea Standard Metrology Center) Hu Jian (Donghai Standard Metrology Center, State Oceanic Administration) Peng Yan (East China Standard Measurement Center, State Oceanic Administration) Participating drafters. Qin Ping (North Sea Standard Metrology Center of State Oceanic Administration) Su Jikun (North Sea Standard Metrology Center, State Oceanic Administration) Shen Sijia (South China Sea Standard Metrology Center, State Oceanic Administration) Ying Peixuan (South China Sea Standard Metrology Center, State Oceanic Administration)

Introduction (Ⅱ) 1 Scope (1) 2 References (1) 3 Terms and units of measurement (1) 3.1 Terminology (1) 3.2 Unit of measurement (2) 4 Overview (2) 5 Measurement performance requirements (2) 6 General technical requirements (3) 6.1 Appearance requirements (3) 6.2 Sensor requirements (3) 6.3 Starting wind speed (3) 7 Control of measuring instruments (3) 7.1 Verification conditions (3) 7.2 Verification items (5) 7.3 Verification method (5) 7.4 Processing of verification results (9) 7.5 Verification period (9) Appendix A Reference Format of Calibration Record Form (10) Appendix B. Reference Format of Information on the Internal Page of the Certificate of Verification/Certificate of Verification (14)

Introduction

This regulation is a revision of JJG 876-1994 "Ship Meteorological Instrument". In JJG 431-2014 "three light cups" Wind direction anemometer ", JJG (Weather) 004-2011" Automatic weather station wind direction and wind speed sensor ", JJG (Weather) 002-2015 "Platinum Resistance Temperature Sensor for Automatic Weather Station", JJF1030-2010 "Condition of Technical Performance Test for Constant Temperature Bath "Fan", JJG (Weather) 003-2011 "Humidity Sensor of Automatic Weather Station", JJF1076-2001 "Humidity Sensor Calibration Specifications ", JJG 1084-2013" Digital Barometer ", HY/T 144-2011" Volunteer Ship Automatic Test Report " "Instrument", JJF1094-2002 "Evaluation of measuring instrument characteristics", JJF1059.1-2012 "Evaluation of measurement uncertainty and On the basis of technical documents such as "Expression" and the current status of the use of marine meteorological instruments in the marine field, the plan Quantity performance requirements. Compared with JJG 876-1994, the main technical changes of this regulation are as follows. --- Added reference documents (see Chapter 2); --- Added terms and units of measurement (see Chapter 3); --- Modified the working principle of the instrument and the schematic diagram of the working unit of the sensor (see Chapter 4); --- Revised the visual inspection requirements (see 6.1); --- Modify the instrument measurement performance requirements (see Chapter 5); --- Modified the requirements of the measuring standard used for wind speed, temperature and humidity verification, and increased the meter used for air pressure verification Measuring standard requirements (see Chapter 7); --- Modified the verification method of wind speed, temperature and humidity, and added the verification method of air pressure (see 7.3); --- Modified the verification record format (see Appendix A); --- Modified the information and format of the pages of the certificate of verification/certification result notice (see Appendix B). The release of previous versions of this regulation. --- JJG 876-1994. Verification Regulations for Ship Meteorological Instruments

1 Scope

This regulation is applicable to the first verification, subsequent verification and in-use inspection of marine meteorological instruments.

2 Reference documents

This regulation refers to the following documents. JJG 431-2014 portable three cup wind direction anemometer JJG 1084-2013 digital barometer JJF1030-2010 Thermostatic bath technical performance test specification JJG (Weather) 002-2015 Automatic Weather Station Platinum Resistance Temperature Sensor JJG (Weather) 004-2011 Automatic Weather Station Wind Direction and Speed Sensor For dated reference documents, only the dated version applies to this regulation; for non-date quoted documents The latest version (including all amendments) is applicable to this regulation.

3 Terms and units of measurement

3.1 Terminology Installed on various ships, it can automatically carry out marine meteorology such as wind speed, wind direction, temperature, relative humidity, air pressure, etc. Elements for observation, processing, display, storage and transmission. 3.1.2 Uniformity of flow velocity The uniformity of the flow field in the working section of the wind tunnel. [JJG (Weather) 004-2011, 2.1] 3.1.3 Stability off flow velocity stability The stability of the flow field in the working section of the wind tunnel. [JJG (Weather) 004-2011, 2.2] 3.1.4 Blocking ratio The ratio of the windward area of the wind speed sensor in the working section of the wind tunnel to the cross-sectional area of the uniform zone in the working section. 3.1.5 Thermostatic bath temperature fluctuation thermostaticbathtemperaturevolatility Refers to the temperature change range of the working area of the constant temperature bath within a certain time interval. [JJF1030-2010,2.2] 3.1.6 Thermostatic bath temperature uniformity Refers to the difference between the highest temperature and the lowest temperature in the working area of the constant temperature bath. [JJF1030-2010,2.3] 3.1.7 Fluctuation of humidity Under humidity control conditions, the amount of humidity change at any point in the working area of the humidity box within a specified time. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJG 876-2019_English be delivered?

Answer: Upon your order, we will start to translate JJG 876-2019_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 JJG 876-2019_English with my colleagues?

Answer: Yes. The purchased PDF of JJG 876-2019_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 876-2019?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJG 876-2019 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.