GB/T 24218.12-2012 English PDF

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GB/T 24218.12-2012: Textiles -- Test methods for nonwovens -- Part 12: Demand absorbency
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 24218.12-2012	299	Add to Cart	3 days	Textiles -- Test methods for nonwovens -- Part 12: Demand absorbency	Valid

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Basic data

Standard ID: GB/T 24218.12-2012 (GB/T24218.12-2012)
Description (Translated English): Textiles -- Test methods for nonwovens -- Part 12: Demand absorbency
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: W04
Classification of International Standard: 59.080.30
Word Count Estimation: 13,128
Quoted Standard: GB/T 6529; GB/T 6682
Adopted Standard: ISO 9073-12-2002, MOD
Regulation (derived from): National Standards Bulletin No. 13 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 role of mechanical stress in the specimen, and its contact with the liquid side of the liquid absorbent test methods. This section is used compared with non -woven cloth absorbent material, but not the final product to simulate

GB/T 24218.12-2012: Textiles -- Test methods for nonwovens -- Part 12: Demand absorbency

---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.
Textiles.Test methods for nonwovens.Part 12. Demand absorbency ICS 59.080.30 W04 National Standards of People's Republic of China Textiles - Test methods for nonwovens Part 12. Determination of compressive absorbability Part 12. Demandabsorbency (ISO 9073-12..2002, MOD) 2012-06-29 release 2012-12-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People 's Republic of China China National Standardization Management Committee released

Foreword

GB/T 24218 "Textile nonwovens test method" is divided into the following parts. - Part 1. Determination of mass per unit area; - Part 2. Determination of thickness; - Part 3. Determination of breaking strength and elongation at break (strip method); - Part 5. Determination of resistance to mechanical penetration (ball top breaking method); - Part 6. Determination of absorbency; - Part 8. Determination of liquid penetration time (simulated urine); - Part 10. Determination of flop; - Part 11. Determination of overflow; - Part 12. Determination of compressive absorbability; - Part 13. Determination of multiple penetration times of liquids; - Part 14. Determination of moisture content of coating materials; - Part 15. Determination of breathability; - Part 16. Determination of impermeability (hydrostatic method); - Part 17. Determination of water permeability (spray shock method); - Part 18. Determination of breaking strength and elongation at break (grab method); Part 101. Determination of resistance to physiological saline (Mason bottle method). GB/T 24218 "Textile nonwovens test method" of the above part (except part 101) and ISO 9073 series of standard Corresponding to the corresponding part. The national standards corresponding to Part 4, Part 7 and Part 9 of ISO 9073 are as follows. GB/T 3917.3 Textiles - Tearing properties of fabrics - Part 3. Determination of tear strength of trapezoidal specimens (GB/T 3917.3- 2009, ISO 9073-4..1997, MOD); GB/T 18318.1 Determination of flexural properties of textiles - Part 1. Slant method (GB/T 18318.1-2009, ISO 9073-7..1995, MOD); GB/T 23329 Determination of drapeness of textile fabrics (GB/T 23329-2009, ISO 9073-9..2008, MOD). This part is part 12 of GB/T 24218. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This part uses the re-drafting method to modify ISO 9073-12..2002 "Textile Nonwovens Test Method Part 12. Pressure absorption ". The main differences between this part and ISO 9073-12..2002 are. - delete the catalog and preface of international standards; The normative reference document in the international standard by the corresponding national standard instead; --- Amend the time in the table in Appendix B by 0.766s and 1.500s to 0.666s and 1.600s, respectively. This part is proposed by the China Textile Industry Federation. This part is divided by the National Standard Committee on Standardization of Textiles Standardization Technical Subcommittee (SAC/TC209/SC1). This part of the drafting unit. the State Textile Products Quality Supervision and Inspection Center, Shanghai Huaxing standard testing Technology Co., Ltd., the spinning standard (North Beijing) Inspection and Certification Center Limited. This part of the main drafters. Jiang Huixia, Si Ying, Guo Yong. Textiles - Test methods for nonwovens Part 12. Determination of compressive absorbability

1 Scope

This part of GB/T 24218 specifies the test of the liquid absorbency of the specimen in contact with the liquid under mechanical pressure method. This part is used to compare the absorbency of nonwovens materials, but not to simulate the actual conditions of use of the final product. Note. Compressed absorbance is also known as pressure wetting.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. GB/T 6529 Standard atmosphere for textiles for humidity control and testing (GB/T 6529-2008, ISO 139..2005, MOD) GB/T 6682 Analytical laboratory water specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD)

3 terms and definitions

The following terms and definitions apply to this document. 3.1 Maximum Absorb Quality (Af) maximumabsorbedmass The mass of liquid absorbed by the sample at time Tf is in grams (g). Among them, the sample to Tf when the absorption of liquid quality and to Tf The amount of liquid mass absorbed during the first 5s is less than 1% of the mass of the liquid absorbed at Tf. 3.2 Pressure absorption capacity demandabsorbencycapacity; DAC The ratio of the maximum absorption mass Af to the mass of the sample m is in grams per gram (g/g). 3.3 Maximum absorption rate maximumabsorptionrate; MAR The maximum amount of liquid mass absorbed per unit time interval in grams per second (g/s). Note. The maximum absorption rate (MAR) is calculated from the data collected in 1 s, and the time interval for collecting data is no more than 0.25 s. The maximum absorption rate is absorbed Liquid quality is obtained at the inflection point of the time curve.

4 principle

This method tests the liquid absorbency of the fabric under constant pressure. Place the sample on a dedicated perforated plate with a perforated plate through the rainbow The pipette is connected to the reservoir, and the liquid level in the reservoir is lower than the upper surface of the perforated plate. By measuring the quality of the reservoir with time to change The compressive properties of the fabric.

5 instruments

The test device is shown in Fig. ......

Image     

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