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GB/T 24447-2009 English PDF

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GB/T 24447-2009: Pulp -- Determination of fiber coarseness -- Polarized light method
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GB/T 24447-2009English189 Add to Cart 3 days [Need to translate] Pulp -- Determination of fiber coarseness -- Polarized light method Valid GB/T 24447-2009

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Basic data

Standard ID GB/T 24447-2009 (GB/T24447-2009)
Description (Translated English) Pulp -- Determination of fiber coarseness -- Polarized light method
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard Y30
Classification of International Standard 85-010
Word Count Estimation 8,890
Date of Issue 2009-10-15
Date of Implementation 2010-03-01
Quoted Standard GB/T 462; GB/T 740; GB/T 5399; GB/T 10336; GB/T 24324; QB/T 1462
Adopted Standard ISO 23713-2005, MOD
Regulation (derived from) National Standard Approval Announcement 2009 No.11 (Total No.151)
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 use of polarized fiber roughness measurement methods. This standard applies to all kinds of pulp can occur polarized light, the standard measurement results will not include a fiber length of less than 0. 2 mm.

GB/T 24447-2009: Pulp -- Determination of fiber coarseness -- Polarized light method

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Pulp. Determination of fiber coarseness. Polarized light method ICS 85-010 Y30 National Standards of People's Republic of China Pulps - Determination of fiber coarseness polarization method (ISO 23713.2005, MOD) Posted 2009-10-15 2010-03-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This revised standard adopts ISO 23713.2005 "Pulp Determination use automated optical fiber coarseness polarization method" (in English). This standard and ISO 23713.2005 compared to major differences are. --- With GB/T 462 "Paper, paperboard and pulp - Determination of water sample for analysis" instead of ISO 287. 1985, MOD and ISO 638. 1978, MOD; --- With GB/T 10336 "Determination of the length of the papermaking fibers polarization method" instead eqvISO 16065-1.2001; --- With GB/T 24324 "Pulp physical testing laboratory sheets prepared by conventional sheet former law" instead of ISO 5269-1. 2005, MOD; --- With QB/T 1462 "Pulp Laboratory wet solution from" instead eqvISO 5263. 1979. The standard proposed by China National Light Industry Council. This standard by the National Standardization Technical Committee of the paper industry. This standard was drafted. China Pulp and Paper Research Institute, the national paper quality supervision and inspection center, China Paper Association Professional Committee of Standardization Members will. The main drafters of this standard. Wang, Tang Zhiming, Wang Juhua. This standard by the National Standardization Technical Committee is responsible for interpreting the paper industry. Pulps - Determination of fiber coarseness polarization method

1 Scope

This standard specifies the use of polarized light fiber coarseness measured approach. This standard applies to all kinds of pulp can happen to light polarization, this standard does not include the length of the measurement results will be less than 0.2mm Fibers.

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 462 paper, board and pulp - Determination of water sample (GB/T 462-2008, ISO 287. 1985, MOD; ISO 638. 1978, MOD) GB /take (GB/T 740-2003, ISO 7213. 1981, IDT) T 740 pulp samples GB /pulp slurry concentration measurement T 5399 (GB/T 5399-2004, ISO 4119.1995, IDT) GB/T 10336 papermaking fiber length measuring polarization method (GB/T 10336-2002, eqvISO 16065-1.2001) GB/T 24324 physical testing pulp prepared by conventional sheet former method (GB/T 24324-2009, laboratory sheets ISO 5269-1.2005, IDT) Wet Solutions QB/T 1462 from pulp Laboratories (QB/T 1462-1992, eqvISO 5263. 1979)

3 Terms and Definitions

The following terms and definitions apply to this standard. 3.1 Light emitted by the light waves, the plane of vibration of light waves randomly arranged. 3.2 Only part of the light waves through the instrument allows the vibration in a particular direction (polarization direction of the polarizer). 3.3 Light emitted by the light waves, the light waves vibrate in the same plane the whole. 3.4 A couple of polarizers mounted in the optical path, the direction of polarization of the two polarizers at right angles to each other, so that light can not directly through a polarizer from Another polarizer. 3.5 Some substances, such as cellulose fibers, having a crystal structure, refractive index changes with the direction of polarization. NOTE. cellulose fibers through light permeable another orthogonal polarizers, is the result of plane polarized light is rotated in the direction of polarization.

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