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JJF 2069-2023 English PDF

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JJF 2069-2023: Calibration Specification for Thermomechanical Analyzers
Status: Valid

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
JJF 2069-2023	English	449	Add to Cart	4 days [Need to translate]	Calibration Specification for Thermomechanical Analyzers	Valid	JJF 2069-2023

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Basic data

Standard ID	JJF 2069-2023 (JJF2069-2023)
Description (Translated English)	Calibration Specification for Thermomechanical Analyzers
Sector / Industry	Metrology & Measurement Industry Standard
Word Count Estimation	22,298
Date of Issue	2023-10-12
Date of Implementation	2024-04-12
Issuing agency(ies)	State Administration for Market Regulation

JJF 2069-2023: Calibration Specification for Thermomechanical Analyzers

---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 Specifications for Static Thermomechanical Analyzers Released on 2023-10-12 Implemented on 2024-04-12 Released by the State Administration for Market Regulation Calibration Specifications for Static Thermomechanical Analyzers Responsible unit: National New Materials and Nano Metrology Technical Committee Main drafting unit: Guangdong Institute of Metrology China Institute of Metrology Participating unit in the drafting: Qingyuan Quality Metrology Supervision and Inspection Institute This specification is entrusted to the National New Materials and Nano Metrology Technical Committee to be responsible for interpretation: The main drafters of this specification: Yang Jinyong (Guangdong Institute of Metrology) Li Jia (China Institute of Metrology) Zhang Xinyu (Guangdong Institute of Metrology) Participating drafters: Chen Mingyi (Guangdong Institute of Metrology) Liu Chunhui (Qingyuan Quality, Metrology, Supervision and Inspection Institute) Sun Shanmin (Qingyuan Quality, Metrology, Supervision and Inspection Institute)

Introduction(Ⅱ) 1 Scope(1) 2 Cited documents(1) 3 Terminology and units of measurement(1) 4 Overview(1) 5 Measuring characteristics(2) 6 Calibration conditions(2) 6:1 Environmental conditions(2) 6:2 Measurement standards and other equipment(3) 7 Calibration items and calibration methods (3) 7:1 Displacement indication error (3) 7:2 Displacement baseline drift (4) 7:3 Temperature indication error and repeatability (4) 7:4 Programmed heating rate indication error (5) 7:5 Average linear thermal expansion coefficient indication error and repeatability (5) 8 Uncertainty evaluation of calibration results (7) 9 Calibration result expression(7) 10 Recalibration time interval(7) Appendix A Certified temperature reference materials used for reference (8) Appendix B Calibration record format (reference format) (9) Appendix C Calibration certificate inner pages (reference format) (11) Appendix D Uncertainty Assessment Example of Measurement Results (12)

Introduction

JJF 1001-2011 "General Measurement Terms and Definitions", JJF 1071-2010 "Compilation of National Measurement Calibration Specifications" Rules" and JJF 1059:1-2012 "Evaluation and Expression of Measurement Uncertainty" jointly form the basis for formulating this specification Series specifications: This specification refers to JJG936-2012 "Differential Scanning Calorimeter" and JJG1135-2017 "Thermogravimetric Analyzer" Relevant terms, definitions, technical requirements, reference standard selection and test methods: This specification is released for the first time: Calibration Specifications for Static Thermomechanical Analyzers

1 Scope

TMA (hereinafter referred to as TMA) is calibrated at room temperature ~ 600°C: For other temperature measurement ranges, please refer to this manual: specification:

2 cited documents

There are no referenced documents in this specification:

3 Terminology and units of measurement

3:1 Displacement baseline drift baselinedrift Under the program temperature, the TMA's displacement indication value will rise or fall within the measurement temperature range due to its own factors: Movement in direction, unit is μm: An analysis of the relationship between the deformation and temperature of a sample measured under a specified atmosphere and non-vibration load under a programmed temperature technology: When the temperature of a solid sample changes by 1°C, the length change value in a certain direction is the same as its initial length (usually length at 20℃), the unit is K-1: The instantaneous change rate of sample length with temperature (dL/dT) at a specific temperature and its initial length L0 (usually length at 20℃), the unit is K-1: The average change rate of sample length with temperature (ΔL/ΔT) within a certain temperature range and its initial length L0 (usually length at 20℃), the unit is K-1:

4 Overview

TMA is an instrument that uses thermomechanical analysis technology to measure the relationship between sample deformation and temperature: Commonly used for substances Phase transition, glass transition temperature (Tg), softening temperature (Ts), thermal expansion coefficient (α1), expansion and contraction, stress and Measurement analysis such as the functional relationship of strain: TMA usually consists of a measuring device and a control and processing system: The measuring device consists of a heating furnace, a sample support It consists of a frame, probe, force generator (such as magnet, standard weight, etc:), displacement sensor, etc:; control and processing system package Including instrument operation software and data processing software: The measurement modes of TMA include compression, tension, penetration or bending: The sample holder and probe are usually made of melted For fused quartz and alumina, when measuring, you need to select the corresponding material and type of sample according to the temperature range and measurement mode used:

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