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JJF 1175-2021 English PDF

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JJF 1175-2021: Calibration Specification for Test Sieves
Status: Valid

JJF 1175: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
JJF 1175-2021English489 Add to Cart 4 days [Need to translate] Calibration Specification for Test Sieves Valid JJF 1175-2021
JJF 1175-2007English799 Add to Cart 4 days [Need to translate] Calibration Specification for Test Sieves Obsolete JJF 1175-2007

PDF similar to JJF 1175-2021


Standard similar to JJF 1175-2021

GB/T 6003.1   GB/T 21649.2   GB/T 19077   JJG 1175   

Basic data

Standard ID JJF 1175-2021 (JJF1175-2021)
Description (Translated English) Calibration Specification for Test Sieves
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A28
Classification of International Standard 19.120
Word Count Estimation 22,264
Date of Issue 2021-12-08
Date of Implementation 2022-06-08
Issuing agency(ies) State Administration for Market Regulation
Summary This standard is applicable to the calibration of wire mesh test sieves with a mesh size of (0.020~125) mm and metal perforated plate test sieves with a mesh size of (1~125) mm.

JJF 1175-2021: Calibration Specification for Test Sieves

---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 Test Sieve Calibration Specifications Released on 2021-12-08 2022-06-08 Implementation Released by the State Administration for Market Regulation Test Sieve Calibration Specifications Replace JJF 1175-2007 Responsible unit: National Technical Committee of Geometric Engineering Parameter Metrology Main drafting unit: Heilongjiang Metrology Verification and Testing Research Institute China Machinery Productivity Promotion Center Zhejiang Institute of Metrology Participating in the drafting unit: Xinxiang Bashan Aeronautical Materials Co:, Ltd: Liaoning Institute of Metrology Fujian Institute of Metrology This specification entrusts the National Geometric Engineering Parameter Metrology Technical Committee to be responsible for interpretation The main drafters of this specification: Zhang Haibo (Heilongjiang Provincial Institute of Metrology and Testing) Han Zhengyang (Heilongjiang Provincial Institute of Metrology and Testing) Hou Changge (China Machinery Productivity Promotion Center) Ye Xin (Zhejiang Institute of Metrology) Participating drafters: Bai Qianyang (Xinxiang Bashan Aviation Materials Co:, Ltd:) Liu Na (Liaoning Institute of Metrology) Chaoyang (Fujian Institute of Metrology)

Table of contents

Introduction (Ⅱ) 1 Scope(1) 2 References(1) 3 Overview(1) 4 Metrological characteristics(2) 4:1 Wire woven mesh test sieve mesh size (2) 4:2 Mesh hole size of metal perforated plate test sieve (2) 5 Calibration equipment and ambient conditions(2) 6 Calibration Items and Calibration Methods(3) 6:1 Wire woven mesh test sieve mesh size (3) 6:2 Mesh hole size of metal perforated plate test sieve(3) 7 Expression of Calibration Results(4) 8 Recalibration interval(4) Appendix A Test sieve measurement characteristic index (5) Appendix B Uncertainty Evaluation of Measuring Results of Mesh Mesh Size of Wire Woven Mesh Test Sieve (11) Appendix C Uncertainty Evaluation of Measuring Results of Sieve Size of Metal Perforated Plate Test Sieve (14) Appendix D Calibration Certificate Contents(16)

Introduction

This specification is based on JJF 1071-2010 "National Measurement and Calibration Specification Writing Rules", JJF 1001-2011 "General Measurement Terms and Definitions", JJF 1059:1-2012 "Assessment and Expression of Measurement Uncertainty" as the basis and basis revised: Compared with JJF 1175-2007 "Calibration Specifications for Test Sieves", except for editorial modifications, the main technical changes as follows: ---Introduction added; ---Deleted the "sieve hole size between the maximum size (w X) and the number of sieve holes between the middle size (w Z) Quantity" calibration item; --- Deleted the "Basic Size Determination" calibration item; --- Modified the calibration method of "maximum size of sieve hole" and "average size of sieve hole"; ---Modified the "Uncertainty assessment of the measurement results of the mesh size of the wire mesh test sieve"; --- Move the metrological characteristics of the test sieve to Appendix A; ---Delete the technical requirement "Intermediate deviation in the mesh size deviation of the wire mesh test sieve"; --- Added the technical requirements of "Maximum standard deviation of wire mesh test sieve mesh size": The previous releases of this specification are as follows: ---JJF 1175-2007: Test Sieve Calibration Specifications

1 Scope

This specification is applicable to the wire mesh test sieve with the sieve size of (0:020~125) mm and the sieve size of (1~125)mm metal perforated plate test sieve calibration:

2 References

This specification references the following documents: GB/T 5329-2003 Test sieves and sieving test terms GB/T 6003:1-2012 Test sieve technical requirements and inspection Part 1: Metal wire mesh test sieve GB/T 6003:2-2012 Test sieve technical requirements and inspection Part 2: Metal perforated plate test sieve GB/T 6005-2008 Basic principles of test sieve wire mesh, perforated plate and electroformed sheet size For dated references, only the dated version applies to this specification; for undated references document, its latest version (including all amendments) applies to this specification:

3 Overview

Test sieves are mainly used for particle size analysis and sieving tests on granular materials: Wire woven mesh test sieve is shown in Figure 1 The metal perforated plate test sieve is shown in Figure 2: The arrangement of the test sieve holes is shown in Figure 3, Figure 4 and Figure 5: Fig:1 Schematic diagram of wire woven mesh test sieve 1-wire mesh; 2-main part; 3-base; 4-2 and 3 form a screen frame Figure 2 Schematic diagram of metal perforated plate test sieve 1-metal perforated plate; 2-main part; 3-base; 4-2 and 3 form a screen frame

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