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GB/T 16742-2008 English PDF

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GB/T 16742-2008: Function representation of particle size distribution -- Power-function
Status: Valid

GB/T 16742: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 16742-2008English229 Add to Cart 3 days [Need to translate] Function representation of particle size distribution -- Power-function Valid GB/T 16742-2008
GB/T 16742.1-1997English399 Add to Cart 3 days [Need to translate] Function representation of particle size distribution. Power-function Obsolete GB/T 16742.1-1997

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Basic data

Standard ID GB/T 16742-2008 (GB/T16742-2008)
Description (Translated English) Function representation of particle size distribution -- Power-function
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard A28
Classification of International Standard 19.120
Word Count Estimation 10,144
Date of Issue 2008-07-18
Date of Implementation 2009-02-01
Older Standard (superseded by this standard) GB/T 16742.1-1997
Quoted Standard GB/T 16418
Regulation (derived from) Announcement of Newly Approved National Standards No. 12 of 2008 (No. 125 overall)
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 power function of particle size distribution characterization methods. This standard applies to indicate the cumulative particle size distribution of the system.

GB/T 16742-2008: Function representation of particle size distribution -- Power-function

---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.
Function representation of particle size distribution. Power-function ICS 19.120 A28 National Standards of People's Republic of China Replacing GB/T 16742.1-1997 A function of particle size distribution characterization of power function Posted 2008-07-18 2009-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard replaces GB/T 16742.1-1997 "function of particle size distribution characterization of power function." This standard compared with GB/T 16742.1-1997, the main technical content changes as follows. --- Added "2 Normative references"; --- On the "3 Terms and definitions" has been modified and added two; --- According to Chinese customs on the part of the text made editorial changes. The Standard Appendix A, Appendix B and Appendix C are informative appendices. This standard by the national and sorting method Standardization Technical Committee particles sieved (SAC/TC168) and focal points. This standard was drafted. Beijing Physical and Chemical Analysis Center. The main drafters of this standard. Zou Tao, Zhou Suhong, plateaus, king Feng, Chen Ying. This standard replaces the standards previously issued as follows. --- GB/T 16742.1-1997. A function of particle size distribution characterization of power function

1 Scope

This standard specifies the method for characterization of power function of particle size distribution. This standard applies to represents the cumulative distribution of the particles of the system size.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 16418 particle systems -

3 Terms and Definitions

GB/T 16418 and established in the following terms and definitions apply to this standard. 3.1 Ratio of particle surface area to its volume. 3.2 The ratio of particle surface area to its mass. 3.3 An equivalent spherical surface area The specific surface area of \u200b\u200bparticles of the same volume.

4 Symbol

Symbols are shown in Table 1 of this standard referenced provisions. Table 1 Symbol Description Unit C double-logarithmic linear power function intercept - M1 double-logarithmic power function slope of the line - Q (x) the cumulative distribution under sieve - R (x) the cumulative distribution sieve - Sm particle mass ratio of surface area cm2/g Sv specific surface area of \u200b\u200bthe particle volume cm-1 X0 particle size cm

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