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JJF 1171-2024 English PDF

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Q: Should I purchase the latest version JJF 1171-2024?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJF 1171-2024 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$639.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJF 1171-2024: Calibration Specification for Temperature and Humidity Itinerant Detecting Instruments
Status: Valid

JJF 1171: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJF 1171-2024	639	Add to Cart	5 days	Calibration Specification for Temperature and Humidity Itinerant Detecting Instruments	Valid
JJF 1171-2007	599	Add to Cart	3 days	Calibration Specification for Temperature Itinerant Detecting Instrument	Obsolete

Basic data

Standard ID: JJF 1171-2024 (JJF1171-2024)
Description (Translated English): Calibration Specification for Temperature and Humidity Itinerant Detecting Instruments
Sector / Industry: Metrology & Measurement Industry Standard
Word Count Estimation: 31,367
Date of Issue: 2024-06-14
Date of Implementation: 2024-12-14
Issuing agency(ies): State Administration for Market Regulation
Summary: This standard applies to the calibration of temperature and humidity circuit detectors, temperature and humidity circuit detectors and temperature and humidity circuit detectors (hereinafter referred to as circuit detectors) with electrical parameter sensors in the temperature measurement range of (-80~+1 200)�� and the relative humidity measurement range of 5%~95% at (5~40)��. Other types of temperature and humidity circuit detectors can also refer to this standard.

JJF 1171-2024: Calibration Specification for Temperature and Humidity Itinerant Detecting 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.
National Metrology Technical Specifications of the People's Republic of China Calibration specification for temperature and humidity circuit detector Released on 2024-06-14 2024-12-14 implementation The State Administration for Market Regulation issued Calibration specification for temperature and humidity circuit detector Replace JJF 1171-2007 Responsible unit. National Temperature Measurement Technical Committee Main drafting unit. Shandong Institute of Metrology China Testing Technology Research Institute China National Institute of Metrology Participating in the drafting. Taian Panran Measurement and Control Technology Co., Ltd. Beijing Conste Instrument Technology Co., Ltd. This specification is entrusted to the National Temperature Metrology Technical Committee for interpretation The main drafters of this specification are. Liang Xingzhong (Shandong Institute of Metrology) Fu Zhiyong (China Testing Technology Research Institute) Li Zhanyuan (China National Institute of Metrology) Participating drafters. Yin Yue (Shandong Institute of Metrology) Hu Jing (China National Institute of Metrology) Zhang Jun (Taian Panran Measurement and Control Technology Co., Ltd.) Gao Hongjun (Beijing Conste Instrument Technology Co., Ltd.)

Introduction (II) 1 Scope(1) 2 References(1) 3 Terminology (1) 4 Overview(1) 5 Metering characteristics (2) 5.1 Temperature indication error (2) 5.2 Relative humidity indication error (2) 5.3 Consistency of temperature indications (2) 5.4 Humidity indication consistency (2) 6 Calibration conditions(2) 6.1 Environmental conditions(2) 6.2 Measurement standards and other equipment (2) 7 Calibration items and calibration methods (4) 7.1 Calibration Items(4) 7.2 Temperature calibration(4) 7.3 Humidity calibration(6) 8 Expression of calibration results (7) 9 Recalibration interval (7) Appendix A Temperature and humidity circuit detector calibration record reference format (8) Appendix B Reference format for the inner page of the calibration certificate for temperature and humidity circuit detectors (11) Appendix C Example 1 of the evaluation of the measurement uncertainty of the temperature indication error of the temperature and humidity circuit detector (the standard instrument is the standard Platinum resistance thermometer) (12) Appendix D Example 2 for the evaluation of the measurement uncertainty of the temperature indication error of the temperature and humidity circuit detector (the standard instrument is the standard PtRh 10-Pt thermocouple) (16) Appendix E Example 3 of the measurement uncertainty evaluation of humidity indication error of temperature and humidity circuit detector (the standard instrument is a precision Dew point meter) (21)

Introduction

JJF 1001-2011 "General metrological terms and definitions", JJF 1071-2010 "National metrological calibration specifications" Rules”, JJF 1059.1-2012 “Evaluation and Expression of Uncertainty in Measurement” and JJF 1007-2007 “Thermometer "Quantitative Terms and Definitions" together constitute the basic series of specifications for the revision of this specification. This specification is a revision of JJF 1171-2007 "Calibration Specification for Temperature Circuit Detectors" and is consistent with JJF 1171- Compared with.2007, in addition to editorial changes, the main changes are as follows. --- Added the introduction; ---The scope of application has changed, the temperature range has been expanded, and the humidity parameter has been added; --- Deleted the functional inspection items; ---Added temperature standard; --- Modified the technical requirements for constant temperature equipment; ---Added humidity standard and supporting equipment; ---Added humidity parameter calibration method; --- The original record format is added in the appendix; --- The appendix adds uncertainty assessment examples for temperature indication error and humidity indication error calibration. The previous versions of this specification are as follows. ---JJF 1171-2007; ---JJG718-1991. Calibration specification for temperature and humidity circuit detector

1 Scope

This specification applies to the temperature measurement range of (-80~1200)℃ and the relative humidity measurement range of (5~40)℃ 5%~95% of the temperature and humidity circuit detectors are equipped with electrical parameter sensors. Calibration of the instrument (hereinafter referred to as the inspection instrument). Other types of temperature and humidity monitoring instruments can also refer to this specification.

2 References

This specification references the following documents. JJF 1007-2007 Temperature measurement terms and definitions JJF 1076-2020 Digital Thermometer and Hygrometer Calibration Specification JJF 1262-2010 Armored Thermocouple Calibration Specification JJF 1366-2012 Temperature Data Acquisition Instrument Calibration Specification For any referenced document with a date, only the version with the date is applicable to this specification; for any referenced document without a date, The latest version (including all amendments) shall apply to this specification.

3 Terminology

The terms and definitions defined in JJF 1007-2007 and the following apply to this specification. An instrument equipped with multiple temperature and humidity sensors that can periodically measure temperature and humidity parameters. At the same temperature, the difference between the maximum and minimum temperature indications of each channel of the inspection instrument. The difference between the maximum and minimum humidity indications of each channel of the inspection instrument under the same humidity. The time required for the inspection instrument to complete a single working cycle under specified working conditions.

4 Overview

The inspection instrument consists of a temperature/humidity sensor, a control and data processing unit, a human-computer interaction system, and a storage unit. The typical structure is shown in Figure 1.The output electrical signal (voltage, resistance, current, etc.) of the temperature/humidity sensor changes with temperature/ The electrical signal changes with the change of humidity. The electrical signal is selected by the multi-channel automatic switch one by one, and after sampling, quantization, coding and necessary auxiliary The analog quantity is converted into digital quantity by auxiliary calculation method, and then output to the display and recording mechanism after being processed by the corresponding circuit. Periodically measure multiple points of temperature and humidity. According to the different sensors configured, it can be divided into temperature patrol detector, humidity patrol detector, Circuit detectors and temperature and humidity circuit detectors can be used to measure the temperature of internal spaces such as environmental test equipment and rooms. Humidity parameters. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJF 1171-2024_English be delivered?

Answer: Upon your order, we will start to translate JJF 1171-2024_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 1171-2024_English with my colleagues?

Answer: Yes. The purchased PDF of JJF 1171-2024_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 JJF 1171-2024?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJF 1171-2024 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.