GB/T 29025-2012 English PDF

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GB/T 29025-2012: Determination of particle size distributions -- Electrical sensing zone method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 29025-2012	754	Add to Cart	3 days	Determination of particle size distributions -- Electrical sensing zone method	Valid

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Basic data

Standard ID: GB/T 29025-2012 (GB/T29025-2012)
Description (Translated English): Determination of particle size distributions -- Electrical sensing zone method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A28
Classification of International Standard: 19.120
Word Count Estimation: 38,338
Quoted Standard: GB/T 15445.2-2006; ISO 787-10
Adopted Standard: ISO 13319-2007, IDT
Regulation (derived from): National Standards Bulletin No. 41 of 2012
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the resistance measurement dispersed in an electrolyte solution of particle size distribution method. This method is applicable, and by measuring the pulse height or pulse and a particle volume diameter particle size distribution o

GB/T 29025-2012: Determination of particle size distributions -- Electrical sensing zone method

---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.
Determination of particle size distributions. Electrical sensing zone method ICS 19.120 A28 National Standards of People's Republic of China Particle size analysis resistance method (ISO 13319.2007, IDT) Issued on. 2012-12-31 2013-10-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Preface Ⅰ 1 Scope 1 2 Normative references 1 3 Terms and definitions 4 Symbols 2 5 measurement principle 2 6 General 3 7 particle counting measurement repeatability of 5 Experimental procedure 6 8 9 10 particle size analysis Calculation of measurement results 10 10 11 10 instrument verification (Informative) Calibration porous and conductive particles measurements Appendix A 11 Annex B (informative) two (or more) Measurement aperture tube 14 Annex C (informative) sample preparation and instrument operation correctness test --- χ2 test 16 Annex D (informative) electrolyte solution and materials 18 Annex E (informative) Quality cumulative method 28 Calibration and quality aperture tube Appendix F (informative) frequently used controls 33 References 34

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard uses the translation method identical with ISO 13319.2007 "Particle Size Analysis resistance method" (in English). Correspondence between the consistency of the standards of international documents and normative references of the following documents. GB/T 1713-2008 pigment density Pycnometer method (ISO 787-10.1993, IDT). The standard characterization and sorting by the National Standardization Technical Committee and mesh particles (SAC/TC168) and focal points. This standard was drafted. Shanghai Measurement and Testing Technology Research Institute, the machine Productivity Promotion Center. The main drafters of this standard. Wu Limin, Yu Fang, Ho Chi Hui, Dong Yi, Xu, Zhu Lina, Dehui, Chen Yongkang. Particle size analysis resistance method

1 Scope

This standard specifies the resistance measurement is dispersed in an electrolyte solution of particle size distribution method. This method is suitable for measuring pulse by Correlation between pulse height and the particle diameter and particle volume or to obtain a particle size distribution, the measurement range of about 0.4μm ~ 1200μm. Although this standard does not propose specific materials requires measurement details, but gives a porous material such as a metal powder and a conductive material The particle size analysis guidelines.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. Presentation - Part 2 GB/T 15445.2-2006 Size Analysis. Calculated by the average particle size distribution/diameter and each time Moment (ISO 9276-2.2001, IDT) ISO 787-10 pigments and extenders - Common test methods - Part 10. Determination of density Pyknometer (General methodsoftestforpigmentsandextenders-Part 10. Determinationofdensity-Pyknometermethod)

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Deadtime deadtime Since the electronic device prior to treatment and can not detect a pulse signal to the time interval of the particles. 3.2 Hole aperture The suspension is sucked through the hole of a small diameter. 3.3 Sensitive areas sensingzone It can detect holes within and near the area of \u200b\u200bthe particle. 3.4 Sample volume samplingvolume Volume of the suspension to be analyzed. 3.5 Channel channel That particle size range. 3.6 Apparent particle size envelopesize Under the microscope to look particle size. ......

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