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GB/T 39748.11-2021: Urine-absorbing aids for incontinence - Test methods for characterizing polymer-based absorbent materials - Part 11: Determination of content of respirable particles
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Urine-absorbing aids for incontinence - Test methods for characterizing polymer-based absorbent materials - Part 11: Determination of content of respirable particles
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GB/T 39748.11-2021
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Basic data | Standard ID | GB/T 39748.11-2021 (GB/T39748.11-2021) | | Description (Translated English) | Urine-absorbing aids for incontinence - Test methods for characterizing polymer-based absorbent materials - Part 11: Determination of content of respirable particles | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | C45 | | Word Count Estimation | 10,198 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 39748.11-2021: Urine-absorbing aids for incontinence - Test methods for characterizing polymer-based absorbent materials - Part 11: Determination of content of respirable particles
---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.
Urine-absorbing aids for incontinence - Test methods for characterizing polymer-based absorbent materials - Part 11.Determination of content of respirable particles
ICS 11.180.20
C45
National Standards of People's Republic of China
Urine absorption aids for incontinence
Testing method of polymer matrix absorbent material properties
Part 11.Determination of the content of inhalable particles
(ISO 17190-11.2001,IDT)
Released on 2021-03-09
2021-03-09 implementation
State Administration of Market Supervision and Administration
Issued by the National Standardization Management Committee
Table of contents
Foreword Ⅲ
Introduction Ⅳ
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 Principle 1
5 Reagent 2
6 Instrument 2
7 Sampling 2
8 Step 3
9 Calculation 3
10 Accuracy 3
11 Inspection report 4
Appendix A (informative appendix) Statistical results of inter-laboratory tests 5
Foreword
GB/T 39748 "Test Method for Characteristics of Polymer Matrix Absorbent Materials for Urine Absorption Aids for Incontinence" is divided into the following parts.
---Part 1.Determination of pH;
---Part 2.Determination of residual monomer content;
---Part 3.Determination of particle size distribution by sieving method;
---Part 4.Determination of moisture content by heating weight loss method;
---Part 5.Determine the water absorption rate by weighing method in normal saline;
---Part 6.Gravimetric method to determine the retention rate of normal saline after centrifugation;
---Part 7.Gravimetric method to determine the amount of liquid absorbed under pressure;
---Part 8.Determination of flow by weighing method;
---Part 9.Determination of density by weighing method;
---Part 10.Potentiometric titration method to determine the amount of extractable polymer;
---Part 11.Determination of the content of inhalable particles.
This part is Part 11 of GB/T 39748.
This section was drafted in accordance with the rules given in GB/T 1.1-2009.
The translation method used in this part is equivalent to the ISO 17190-11.2001 ``Characteristics of Polymer Matrix Absorbent Materials for Incontinence Urine Absorption Aids''
Test methods for sex Part 11.Determination of the content of inhalable particles".
The Chinese documents that have a consistent correspondence with the international documents cited in this section are as follows.
---GB/T 10739-2002 Standard atmospheric conditions for handling and testing of paper, paperboard and pulp samples (eqvISO 187.1990);
---GB/T 6682-2008 Analytical laboratory water specifications and test methods (ISO 3696.1987, MOD);
---GB/T 6379.2-2004 Measurement method and accuracy of results (accuracy and precision) Part 2.Determine standard measurement
The basic method of measurement method repeatability and reproducibility (ISO 5725-2.1994, IDT).
Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying these patents.
This part was proposed by the Ministry of Civil Affairs of the People's Republic of China.
This part is under the jurisdiction of the National Standardization Technical Committee for Rehabilitation and Special Equipment for the Disabled (SAC/TC148).
Drafting unit of this section. National Research Center for Rehabilitation Assistive Devices.
The main drafters of this section. Ma Fengling, Yang Dehui, Zou Hua.
Introduction
The GB/T 39748 series of test methods were originally formulated by the European Disposable Nonwovens Association, without technical modification, and integrated into
ISO 17190 is an international standard published in 11 parts.
These test methods have been used in practice for many years, and their reliability is measured according to the general standards (validity and reproducibility, etc.) of the test methods.
It has been proved to be suitable for the detection of sodium polyacrylate superabsorbent materials in sanitary products, including the material detection of urine absorption aids for incontinent persons
Measurement. These test methods are specifically used for testing materials, and are not applicable or applicable to the testing of finished urine absorption aids.
This part of GB/T 39748 is in accordance with ISO 17191 "Urine absorption aids for incontinence. Polyacrylic acid can be inhaled in the air. Highly absorbent water
Material Sodium Atomic Absorption Spectrometry for the Determination of Dust in the Collection Box" is used together.
Urine absorption aids for incontinence
Testing method of polymer matrix absorbent material properties
Part 11.Determination of the content of inhalable particles
1 Scope
This part of GB/T 39748 specifies the method for determining the content of inhalable particles of polyacrylate (PA) super absorbent resin powder.
Note. The average diameter of commercial polyacrylate super absorbent resin powder particles is 400μm~800μm, which is more than the content of inhalable particles with a diameter of about 10μm
It is much larger, and only a small amount of inhalable particles may appear in the commercial super absorbent resin powder during the production process.
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article
Pieces. For undated reference documents, the latest version (including all amendments) is applicable to this document.
ISO 187 Standard atmospheric conditions for the treatment and testing of paper, paperboard and pulp samples (Paper, boardandpulps-Standard
atmosphereforconditioningandtestingandprocedureformonitoringtheatmosphereandconditioning
ofsamples)
ISO 3696 Analytical laboratory water characteristics and test methods (Waterforanalyticallaboratoryuse-Specification
andtestmethods)
ISO 5725-2 Measurement methods and accuracy of results (accuracy and precision) Part 2.Determining the repetition of standard measurement methods
The basic method of performance and reproducibility [Accuracy(truenessandprecision)ofmeasurementmethodsandresults-Part
2.Basicmethodforthedeterminationofrepeatabilityandreproducibilityofastandardmeasurement
method]
ISO 8213 Sampling methods for industrial chemical products, solid chemical products in different forms, from coarse blocks to powder particles
(Chemicalproductsforindustrialuse-Samplingtechniques-Solidchemicalproductsintheformof
particlesvaryingfrompowderstocoarselumps)
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Respirableparticle
The particle diameter is less than 10μm.
4 Principle
Use standard sieves with apertures of 500 μm, 250 μm, and 106 μm to separate super absorbent resin powder with a diameter of less than 106 μm
Finally, through the diffraction analysis of the laser particle size analyzer, the inhalable particles with a diameter of less than 10 μm are determined from the samples with a diameter of less than 106 μm.
For the particle ratio, use the wet dispersion method in dry petroleum ether to determine the dispersion of the particles with a diameter of less than 106μm.
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