JJG 161-2010 English PDF

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JJG 161-2010: Verification regulation of standard mercury-in-glass thermometers
Status: Valid

JJG 161: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJG 161-2010	399	Add to Cart	3 days	Verification regulation of standard mercury-in-glass thermometers	Valid
JJG 161-1994	439	Add to Cart	4 days	Verification Regulation of Standard Mercury-in-Glass Thermometer (Grade I)	Obsolete
JJG 161-1975	RFQ	ASK	3 days	(Chinese Industry Standard)	Obsolete

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Basic data

Standard ID: JJG 161-2010 (JJG161-2010)
Description (Translated English): Verification regulation of standard mercury-in-glass thermometers
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A54
Classification of International Standard: 17.200
Word Count Estimation: 17,133
Date of Issue: 2010-09-06
Date of Implementation: 2011-03-06
Older Standard (superseded by this standard): JJG 161-1994; JJG 128-2003
Quoted Standard: JJG 160-2007
Regulation (derived from): AQSIQ Announcement No. 100 of 2010
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine
Summary: This standard applies to measurement range (-60 ~ 300)��C, indexing is 0. 05��C or 0. 1��C standard mercury (mercury-based alloys) thermometer initial verification, testing and use of follow-up inspection.

JJG 161-2010: Verification regulation of standard mercury-in-glass thermometers

---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.
Verification regulation of standard mercury-in-glass thermometers State verification procedures People's Republic of China Standard mercury thermometer Issued on. 2010-09-06 2011-03-06 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Standard mercury thermometer test procedures Mercury Replacing JJG 161-1994 JJG 128-2003 The regulations by the State Administration of Quality Supervision, Inspection and Quarantine approved on September 6, 2010, and from From March 6, 2011 into effect. Focal point. the National Technical Committee of temperature measurement The main drafting units. China Institute of Metrology Beijing Institute of Metrology detection YIMT test Guangdong Provincial Institute of Metrology Participated in the drafting. Jizhou City Yaohua instrument Factory The temperature measurement procedures commissioned the National Technical Committee is responsible for interpretation The drafters of the regulations. Chang (China Institute of Metrology) Zhang Ke (Beijing Institute of Metrology detection) Rao Jie (YIMT test) Liang was there (the Guangdong Provincial Institute of Metrology) Drafters participate. Wang Ying (Beijing Institute of Metrology detection) Feng Yuling (China Institute of Metrology) Xu Yan hair (Jizhou Yaohua instrument Factory)

table of Contents

1 Scope (1) 2. Referenced Documents (1) 3 Terms (1) 4 Overview (1) 5 metering performance requirements (1) 5.1 Indication correction value and zero (1) 5.2 shows the value of stability (2) 5.3 Capillary uniformity and line aliquot uniformity tolerance (2) 6 General Requirements (3) Glass 6.1 (3) 6.2 liquid temperature and temperature of the liquid column (3) 6.3 scale and labeling (3) 6.4 standard mercury thermometer geometry (3) 7 control of measuring instruments (4) 7.1 test conditions (4) 7.2 Verification Project (4) 7.3 Verification Methods (5) 7.4 Verification of data calculation (6) 7.5 test results processing (7) Appendix A standard mercury thermometer subsequent verification records reference format (8) Appendix B standard mercury thermometer subsequent calibration certificate data sheet reference format (9) Appendix C standard mercury thermometer test results of notice reference data page format (10) Appendix D connection method evaporated mercury droplets (11) Preparation and Use Appendix E triple point of water (12) Standard mercury thermometer test procedures

1 Scope

The order applies to the measurement range (-60 ~ 300) ℃, indexing is 0.05 ℃ or 0.1 ℃ standard mercury (Mercury-based alloy) thermometer initial verification, subsequent verification and in-service inspection.

1 a schematic diagram of a bar thermometer

2 Citations

The regulations cited in the following documents. JJG 160-2007 standard platinum resistance thermometer When using this procedure, it should pay attention to using the currently valid version of the documents cited.

3 Terms

3.1 zero error zeropointerror Standard mercury thermometer error is shown at 0 ℃, referred to zero. 3.2 Indication correction value correctionofindication The difference between the actual temperature and a thermometer to measure the temperature values, namely Value correction value = actual temperature - the thermometer shows value 3.3 Temperature fluctuation thermostaticbathstemperaturevolatility Thermostatic bath when the work area in a given time interval, temperature change range. 3.4 Temperature uniformity thermostaticbathstemperatureuniformity Thermostatic bath when the difference in the work area the maximum temperature and the minimum temperature.

4 Overview

Standard mercury thermometer is the use of mercury (or mercury-based alloy) at the temperature sensing bulb and capillary Thermal expansion and contraction principle thin tube to measure the temperature. Standard mercury thermometer structure Rod (including transparent rod) or internal standard, mainly for verification work with a thermometer, It can also be used for precision temperature measurement. A measurement range (-60 ~ 300) ℃ standard mercury thermometer should be a lot of Seven branches. Former first-class standard mercury thermometer, and a second-class standard mercury thermometer grading canceled, The combined standard mercury thermometer.

5 metering performance requirements

5.1 Indication correction value and zero Initial verification and subsequent verification of standard mercury thermometer showing the value of the correction value, zero should meet the requirements of Table 1. ......

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