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JJG 701-2008 English PDF

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Q: Should I purchase the latest version JJG 701-2008?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJG 701-2008 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$419.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJG 701-2008: Verification Regulation of Melting-point Measurement Instruments
Status: Valid

JJG 701: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJG 701-2008	419	Add to Cart	3 days	Verification Regulation of Melting-point Measurement Instruments	Valid
JJG 701-1990	399	Add to Cart	3 days	Verification Regulation of Melting-Point-Measuring Instruments with Capillary Method	Obsolete

Similar standards

JJG 714 JJG 635 JJG 695 JJG 700 JJF 701

Basic data

Standard ID: JJG 701-2008 (JJG701-2008)
Description (Translated English): Verification Regulation of Melting-point Measurement Instruments
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A61
Classification of International Standard: 17.200
Word Count Estimation: 18,143
Date of Issue: 2008-12-22
Date of Implementation: 2009-06-22
Older Standard (superseded by this standard): JJG 701-1990; JJG 463-1996
Regulation (derived from): ?AQSIQ Announcement 2008 No.143
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine
Summary: This standard applies to melting point apparatus (hereinafter referred to as the instrument) of the initial verification, follow-up test and use the test. Melting point apparatus includes a capillary melting point apparatus and thermal melting point apparatus Taiwan and France.

JJG 701-2008: Verification Regulation of Melting-point Measurement 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.
Verification Regulation of Melting-point Measurement Instruments State verification procedures People's Republic of China Melting point detector Posted 2008-12-22 2009-06-22 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Melting point detector test procedures Melting-p Replacing JJG 701-1990 JJG 463-1996 The regulations by the State Administration of Quality Supervision, Inspection and Quarantine approved on December 22, 2008, and from From June 22, 2009 into effect. Focal point. the National Technical Committee stoichiometric physical Main drafting unit. Tianjin Institute of Supervision and Testing Weighing Participated in the drafting unit. Shanghai Precision Scientific Instrument Co., Ltd. Tianjin Tianda Tianfa Technology Co., Ltd. This procedure commissioned the National Technical Committee of the stoichiometric physics responsible for the interpretation The main drafters of this procedure. Zhang Jian (Tianjin Academy of Sciences supervised detection measurement) Weishu Long (Tianjin Supervision and Testing Institute of Metrology) Drafters participate. Zhuji Zhong (Shanghai Precision Scientific Instrument Co., Ltd.) Li Chaoyang (Tianjin Tianda Tianfa Technology Co., Ltd.) Song Wei (Tianjin University)

1 Scope (1) 2 Terms (1) 3 Overview (1) 4 metering performance requirements (1) 4.1 indication error (1) 4.2 Repeatability (1) 4.3 linear heating rate of error (2) 5 General Requirements (2) 5.1 Appearance (2) 5.2 Insulation Resistance (2) 6 Control of measuring instruments (2) 6.1 Verification condition (2) 6.2 Verification Project (3) 6.3 Verification Methods (3) Processing 6.4 Verification Results (5) 6.5 test cycle (6) Appendix A melting point of the reference material and instructions for use (7) Appendix B test certificate (in-page) format (9) Appendix C test results notice (within the page) format (10) Appendix D value correction liquid glass thermometers (11) Appendix E melting point detector test recording format (12) Melting point detector test procedures

1 Scope

The order applies to melting point apparatus (hereinafter referred to as equipment) initial verification, verification and subsequent use of the subject Experience. Melting point apparatus including capillary melting point apparatus and method hot stage melting point apparatus.

2 Terms

2.1 capillary melting point As measured by capillary melting point called capillary melting point. Which measures are indirect measurement, it is measured temperature Capillary samples at ambient temperature, not the temperature of the sample. 2.2 thermal melting point Crystalline material, obtaining a dry air heat at atmospheric pressure, a small amount of its unlimited solid same liquid Temperature was called thermodynamic equilibrium thermodynamic melting point.

3 Overview

Capillary melting point apparatus for measuring a crystalline chemicals, pharmaceuticals capillary melting point or thermodynamic melting point. The measuring principle of the instrument is heating the sample in the capillary transfer medium temperature observed phase transition or phase change when light transmittance Changes in order to determine the melting point, which is mainly composed of heating, temperature control, temperature and other components, temperature and mass media may be a liquid or solid body. Theoretical thermal melting point is the melting point of the crystalline substance under ideal conditions, it is generally by measuring the freezing point and melting After the mathematical point of extrapolated. Some capillary melting point apparatus also has a function of measuring the thermodynamic melting point, the melting point is marked by the After the reference material to calibrate the instrument thermodynamic melting point measurement function, measurement of the sample obtained by capillary melting point and projections. Hot Taiwan and France melting point detector for measuring the melting point of the crystalline chemicals, pharmaceuticals and partially crystalline polymer. instrument The measurement principle is heating the specimen slides and cover slips between the hot plate, by means of a microscope with polarizing Observed changes in light transmission properties of the phase transition process and automated measurements to determine the melting point of the phase transition, which is mainly composed of a hot plate, temperature measurement, control Mild with a microscope or some other polarizing device photodetector composition.

4 metering performance requirements

Capillary melting point apparatus is divided by the maximum permissible error in the accuracy of the measurement range of 200 ℃ or less, etc. Level, is divided into four kinds 0.2,0.5,1.0,1.5 grade; hot Taiwan and France melting point detector may be in different measurement ranges It has a different level of accuracy, 0.5, 1.0, divided into three levels. 4.1 Indication error Instrument indication error test results should not exceed the measurement performance requirements (Table 1) of the regulations. 4.2 Repeatability Instrument Repeatability test results should not exceed the measurement performance requirements (Table 1) of the regulations. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJG 701-2008_English be delivered?

Answer: Upon your order, we will start to translate JJG 701-2008_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of JJG 701-2008_English with my colleagues?

Answer: Yes. The purchased PDF of JJG 701-2008_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 701-2008?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJG 701-2008 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.