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GB/T 21557-2008: Waste paper -- Estimation of stickies
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 21557-2008 | English | 329 |
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Waste paper -- Estimation of stickies
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GB/T 21557-2008
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Basic data | Standard ID | GB/T 21557-2008 (GB/T21557-2008) | | Description (Translated English) | Waste paper -- Estimation of stickies | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Y30 | | Classification of International Standard | 85.020 | | Word Count Estimation | 14,169 | | Date of Issue | 2008-03-24 | | Date of Implementation | 2008-10-01 | | Quoted Standard | GB/T 740; GBT 741; GB/T 2481.1; GB/T 5399; QB/T 1462; TAPPI T541 OM-99 | | Adopted Standard | ISO 15360-1-2000, MOD; ISO 15360-2-2001, MOD | | Regulation (derived from) | National Standard Approval Announcement 2008 No.5 (Total No.118) | | 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 paper in two stickies measurement methods: visual method and image analysis. Both methods of image analysis is a secondary hydroponics. This standard applies to paper. | GB/T 21557-2008: Waste paper -- Estimation of stickies---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.
Waste paper. Estimation of stickies
ICS 85.020
Y30
National Standards of People's Republic of China
Determination of paper Stickies
(ISO 15360-1.2000, Recycledpulps-Estimationof
stickiesandplastics-Part 1. Visualmethod
ISO 15360-2.2001, Recycledpulps-Estimationof
stickiesandplastics-Part 2. Imageanalysismethod, MOD)
Posted 2008-03-24
2008-10-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard visual method to modify the use of ISO 15360-1.2000 "estimates adhesive material recycled pulp and plastic materials - Part 1.
Visual Inspection Law ", to modify the image analysis using the ISO 15360-2.2001" estimate recycled pulp plastic adhesive material and the second material
Parts. image analysis. "
This standard and ISO 15360-1.2000 and ISO 15360-2.2001 technical differences and their causes, see Appendix B, and this standard
ISO 15360-1.2000 and ISO 15360-2.2001 Number of control clauses in Appendix C.
Appendix A of this standard is a normative appendix, Appendix B, Appendix C is informative appendix.
The standard proposed by China National Light Industry Council.
The standard paper by the National Standardization Technical Committee (SAC/TC141) centralized.
The standard by the China Pulp and Paper Research Institute is responsible for drafting.
The main drafters of this standard. Wanghua Jia, Cui Liguo, Deng Zhiming, Qiuwen Lun, Zhou Junfeng.
The standard paper by the National Standardization Technical Committee (SAC/TC141) responsible for the interpretation.
Determination of paper Stickies
1 Scope
This standard specifies the paper Stickies two methods. visual observation and image analysis. Two methods of image analysis method is a secondary
Cut method.
This standard applies to paper.
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 740 pulp samples taken (GB/T 740-2003, ISO 7213. 1981, IDT)
GB/T 741 Determination of pulp sample moisture (GB/T 741-2003, ISO 638. 1978, MOD)
GB/T 2481.1 Bonded abrasives grain size composition testing and labeling - Part 1. kibble F4 ~ F220
(GB/T 2481.1-1998, eqv ISO 8486-1.1996, EQV)
GB/T 5399 pulp slurry concentration measurement (GB/T 5399-2004, ISO 4119.1995, IDT)
QB/T 1462 Solutions wet pulp from the laboratory (QB/T 1462-1992, eqv ISO 5236. 1979)
TAPPIT541om-99 inside the cardboard binding strength (Z direction tensile)
3 Terms and Definitions
The following terms and definitions apply to this standard.
3.1
Some remain in the viscous substance screen slit laboratory screening devices, these sticky substance that adheres to the object in contact therewith.
NOTE. stickies presented at room temperature viscosity, or when the temperature rises, the pressure increases, showing viscosity when pH changes.
4 Method A. visual method
4.1 Principle
Aperture substance with certain laboratory screening equipment screening solution from the slurry after the screening to the filtrate clarification, will remain in the sieve is transferred to filter paper
on. Identification of stickies, and were examined for the number and area of \u200b\u200bstickies.
4.2 instruments and equipment
4.2.1 dissociation unit, shall comply with the provisions of QB/T 1462's.
4.2.2 laboratory screening equipment, average sieve slit width should be 100μm ± 5μm or 150μm ± 5μm, and each with an average seam slit width
The wide difference should be less than 15μm. You can also use other slit width of the plate, but it should be stated in the report.
4.2.3 filter paper, qualitative medium, or fast.
4.2.4 tweezers.
4.2.5 illumination device
4.2.5.1 source, should be applied to the determination of stickies, there is enough light intensity, to ensure that the smallest particles can see.
4.2.5.2 Lighting desk, desktop illuminance of 2500cd/m2 ~ 3000cd/m2, should avoid sunlight or any external source of direct
Exposure.
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