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JJF 2070-2023 English PDF

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JJF 2070-2023: Calibration Specification for Plastic Apparent Shear Viscosity Testers(Capillary Rheometers)
Status: Valid
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JJF 2070-2023English529 Add to Cart 5 days [Need to translate] Calibration Specification for Plastic Apparent Shear Viscosity Testers(Capillary Rheometers) Valid JJF 2070-2023

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JJF 2061   JJF 2060   JJG 2070   

Basic data

Standard ID JJF 2070-2023 (JJF2070-2023)
Description (Translated English) Calibration Specification for Plastic Apparent Shear Viscosity Testers(Capillary Rheometers)
Sector / Industry Metrology & Measurement Industry Standard
Word Count Estimation 26,247
Date of Issue 2023-10-12
Date of Implementation 2024-04-12
Issuing agency(ies) State Administration for Market Regulation

JJF 2070-2023: Calibration Specification for Plastic Apparent Shear Viscosity Testers(Capillary Rheometers)


---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 Plastic apparent shear viscometer (capillary Rheometer) Calibration Specifications Released on 2023-10-12 Implemented on 2024-04-12 Released by the State Administration for Market Regulation Plastic apparent shear viscometer (capillary Rheometer) Calibration Specifications (CapilaryRheometers) Responsible unit: National New Materials and Nano Metrology Technical Committee Main drafting unit: China Institute of Metrology Shandong Nonmetallic Materials Research Institute Liaoning Provincial Institute of Metrology Participating in the drafting: Malvern Panalytical High Technology Research Institute of Heilongjiang Academy of Sciences 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: Zhang Zhengdong (China Institute of Metrology) Shao Hongfei (Shandong Nonmetallic Materials Research Institute) Xiao Zhe (Liaoning Institute of Metrology) Participating drafters: Yang Kai (Malvern Panalytical) Liu Yuanjun (Shandong Nonmetallic Materials Research Institute) Zhang Xiaochen (High Technology Research Institute of Heilongjiang Academy of Sciences) Hong Tao (Liaoning Institute of Metrology)

Table of contents

Introduction(Ⅱ) 1 Scope(1) 2 Cited documents(1) 3 Overview(1) 4 Measurement characteristics(2) 5 Calibration conditions(2) 5:1 Environmental conditions(2) 5:2 Measurement standards and other equipment(2) 6 Calibration items and calibration methods (2) 6:1 Pre-calibration inspection and pre-calibration preparation(2) 6:2 Shear rate correction value indication error and repeatability (3) 6:3 Apparent shear viscosity indication error and repeatability (5) 7 Calibration result expression(6) 8 Recalibration time interval(6) Appendix A Bagley modified test procedures and statistical methods (7) Appendix B Bagley revised original record reference format (9) Appendix C Non-Newtonian index calculation original record reference format (12) Appendix D Original record reference format (14) Appendix E Reference format of the inner pages of the certificate (17) Appendix F Example of uncertainty assessment of shear rate correction value indication error (18) Appendix G Example of uncertainty assessment of apparent shear viscosity indication error (20)

Introduction

JJF 1001-2011 "General Measurement Terms and Definitions", JJF 1059:1-2012 "Measurement Uncertainty Evaluation and Representation" and JJF 1071-2010 "National Metrology Calibration Standards Writing Rules" jointly support the formulation of this standard basic series of specifications: This specification is based on ISO 11443:2014 "Capillary and slot die rheometers for plastics to determine the flow of plastics:" ometers) and GB/T 25278-2010 "Capillary and slit die rheometer for plastics - Determination of flow of plastics" "Sex" was compiled: This specification is released for the first time: Plastic apparent shear viscometer (capillary Rheometer) Calibration Specifications

1 Scope

This specification is applicable to the calibration of plastic apparent shear viscometers with a capillary die:

2 cited documents

This specification references the following documents: GB/T 25278-2010 Determination of flowability of plastics using capillary and slit die rheometers for plastics ISO 11443:2014 Determination of flow properties of plastics using capillary and slot die rheometers (Plastics- For dated references, only the dated version applies to this specification; for undated references, only the dated edition applies: The latest version (including all modification orders) shall apply to this specification:

3 Overview

Plastic apparent shear viscometer (capillary rheometer) is used to draw the stress strain curve of thermoplastic materials: Determine the shear viscosity of polymer melts: The main components of the plastic apparent shear viscosity tester (capillary rheometer) include an insulation layer and a temperature control Functional barrel, plunger (pressure head), die, displacement sensor, pressure sensor, temperature sensor, etc:, as shown in Figure 1 shown: Figure 1 Schematic diagram of plastic apparent shear viscometer (capillary rheometer) 1-Insulation layer; 2-Pressure sensor; 3-Plunger (pressure head); 4-displacement sensor; 5-barrel; 6-temperature sensor; 7-die

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