Aatcc test method 20a astm d276 identifying characteristics of fibers absorbance of ir radiation appearance crosssectional view longitudinal view reaction to flame birefringence density melting point solubility staining crimp crimp frequency. Visual assessment descriptive terms and terminology. Parallel streak method standard by american association of textile chemists and colorists, 2011. Contact times are selected so that the test material would be effective in significantly reducing microbial counts during usage. However, the staining effect produced by five typical hand or home launderings cannot always be predicted by the 45 min test. The parallel streak method has proven effective over a number of years of use in providing evidence of antibacterial activity against both gram positive and gram negative bacteria. After incubation, a clear area of interrupted growth underneath and along the sides of the test material indicates antibacterial activity of the specimen. E292215 standard guide for the use of standard test methods. Aatcc m, rules of procedure for aatcc test method and technology committees. It is applicable to textiles made from all fibers in the form of yarn or fabric whether dyed, printed or otherwise colored. A modified aatcc 301993 method to test fungicide treated fabrics against dermatophytes. Colorfastness to crocking university of northern iowa. Aatcc 352000 technical standards edocuments online. A sample fabric is fastened to the crock meter and then rubbed against a white test cloth.
The method is not suitable for test substances with technologies that are nondiffusable. Aatcc tm1472011 2016e, test method for antibacterial activity of. Pile floor coverings standard by american association of textile chemists and colorists, 20. Aatcc test method 174, part ii mg105 test optionsvariations. Launderometer aatcc test method 611996 colorfastness to. The method is applicable to full rolls, bolts of fabric, and short specimens removed from a roll or bolt.
Brief descriptions of test methods and source links astm. Aatcc 147 antimicrobial testing lab accugen laboratories. Astm e2149 a standard test method for determining the. Per the method, two representative microorganisms are specified, s. E2149a standard test method for determining the antimicrobial activity of antimicrobial. Antibacterial activity assessment of textile materials. The right to download an electronic file from this aatcc technical manual for storage on one computer for purposes of viewing, andor printing one copy of any aatcc test method for individual use for one year. Five separate methods test different home washing conditions.
Condition the test specimens for a mini mum of 4 hr at 2 1 1 c 70 2f and 65 2% rh prior to testing. Below, you will find a summary of the aatcc 100 test method, along with some of its strengths and weaknesses. Visionlite materialscalc also enables the user to import data and perform calculations on transmission spectra that were acquired by other programs in vision software family. Pdf a modified aatcc 301993 method to test fungicide. This is a 24 hour quantitative brothbased assay for the evaluation of the degree of antibacterial activity of finishes on textile materials. In addition, this textile exam microscope has a high definition microscope camera and hd monitor for viewing live images and capturing and saving images as. Impact penetration aatcc 42 aatcc 42 measures the resistance of fabrics to the liquid penetration of water by impact water impact sep 03, 2019 aatcc test method 147 pdf category, microbiology laboratory.
Aatcc test method textile testing products,professional in textile. Sample swatches were stacked and placed into sterile containers. The method is not quantitative, and therfore only provides qualitative data. Aatcc 100 antimicrobial fabric test microchem laboratory. Neither the electronic file nor the hard copy print may be reproduced in any way. Results measurements were made on several fabric swatches or portions of intact articles of clothing. Brief descriptions of test methods and source links astm 3512. Aatcc 147 antimicrobial fabric test situ biosciences llc.
Aatcc 147 is a qualitative antimicrobial test used to detect bacteriostatic activity on fabric and textile materials. Aatcc test method 174, part iii mg106 test optionsvariations. Colorfastness is the property of a dye or print that enables it to retain its depth and shade through the wear life of a product. Aatcc m12, aatcc style guide for writing test methods. The aatcc style guide for writing test methods page 419 is the defining document used by research committees in writing these methods. The test methods in the aatcc technical manual are subject to revision at any time by. Launderometer aatcc test method 611996 colorfastness. The results obtained by this method may not be the same. Method, the agar surface is inoculated making it easier to distinguish between the test. This is a 24 hour qualitative agar platebased assay for the evaluation of antibacterial activity of diffusable antimicrobial agents on treated textile materials. Throughout the years, commercial laundering procedures have changed and commercial cleaning today involves many. American association of textile chemists and colorists. Aatcc crockmeter method determines the amount of colour transferred from the surface of a coloured textile material to another surface by rubbing.
If you want to continue receiving aatcc news, events, and information notices, resubscribe and optin here. These safety precautions are for information purposes only. A crock test is used to determine the amount of color that may be transferred from a sample fabric to another fabric by rubbing. Aatcc 147 parallel streak methodvantibacterial activity. Hydrocarbon resistance test name of standards organization. Colorfastness to crocking aatcc test method 81996 what this test is used for. The rules of procedure for aatcc test method and technology committees page 426 is the. The test method determines antibacterial activity of diffusable antimicrobial agents on treated textile materials. Aatcc 17520 engineer technical aami, asme din standards. This test method is applicable for resistivity measurements generally above 10 7. Water resistance depends on the repellency of the fibers and yarns, as well as the fabric construction. Kct3142m or kct3142cd astm annual book of textile standards.
Aatcc 100 assessment of antibacterial finishes on textile. It measures the resistance of fabrics to the penetration of water by impact, and thus can be used to predict the probable rain penetration resistance of fabrics. Aatcc 1472011 engineer technical aami, asme din standards. By order of the executive director office of the federal register washington, d. Aatcc 42 water resistance is applicable to any textile fabric which may or may not have been given a waterresistant or waterrepellent finish. It was tested 3 qualitative methods aatcc 147, iso 20645 and jis l. This method is useful for obtaining a rough estimate of activity by the size of the zone of inhibition.
The test microorganism is prepared, usually by growth in a liquid culture medium. Depending on the study sponsors testing objectives and products end goals, microchem laboratory can modify the test method to better fit your testing objectives, as mentioned in the method. It is the responsibility of test method users to choose the minimum or maximum measurement value that is acceptable for the product being tested. The test method determines antibacterial activity of diffusable antimicrobial agents on. Aatcc 762000 electrical surface resistivity of fabrics.
The textile examination microscope shown at left was created to meet all standards required by method aatcc 20 and aatcc 20a. Parallel streak method aatcc 147 is a qualitative test used to detect bacteriostatic activity on textile materials. This test is performed with treated and nontreated samples of the test material. Aatcc test method 147 pdf category, microbiology laboratory. American association of textile chemists and colorists legally binding document. Staining is a function of the ratio of colored to undyed fabrics, fiber content of fabrics in the wash load and other enduse conditions which are not always predictable. Antimicrobial parallel streak method aatcc 147 a zone of inhibition occurs as a result of the diffusion of an antimicrobial agent from the specimen. In the parallel streak method, the agar surface is inoculated making it easier to distinguish between the test organism and contaminant organisms which may be present on the unsterilized. The test measures the resistance of fabrics to the penetration of water by impact, and thus can be used to predict the probable resistance of fabrics to rain penetration. In accordance with aatcc 100 test procedure, 1 ml of test organism suspension at about,000 cfuml is inoculated to the test sample.
Aatcc 8 colorfastness to crocking is designed to determine the amount of color transferred from the surface of colored textile materials to other surfaces by rubbing. This test evaluates colorfastness and staining potential of fabrics under accelerated wash condition that simulate five home washings. Free 2019 special issue of aatcc journal of research. Test method aatcc 20a is a quantitative fiber analysis test. The test method may be applicable to the evaluation of fabrics in garments or textile products as they. The method does not include a passfail criterion for the calculated levels of antimicrobial activity observed in test samples. Aatcc 762000 electrical surface resistivity of fabrics covers test methods for the measurement of surface resistivity of various woven fabrics. Aatcc 147 is also used for testing antibacterial, bactericidal, bacteriostatic activity and has been proven effective at providing evidence of antibacterial activity against. Includes all current aatcc test methods and evaluation procedures. Keep up with the latest news, innovations, and testing that affects you as a textile professional. I am trying to validate aatcc 147 but i get different results everytime i run the test, sometimes i get growth under the fabric sample with samples that have shown a halo in previous runs. Textile exam microscopes for aatcc 20 and aatcc 20a methods. This test method measures the resistance of a fabric to the penetration of water under hydrostatic pressure. Aatcc tm147, antibacterial activity of textile materials.
Aatcc m9, a summary of astm methods for interlaboratory testing. Test microorganisms are used at standardized concentrations of fresh cultures. Liquid moisture management properties of textile fabrics. When this test method was originally developed, various options of this method were intended to evaluate the color change and staining by five home or commercial launderings, on an accelerated basis. It is applicable to all types of fabrics, including those treated with a water resistant or water repellent finish. Qc sterility assurance microbiology antimicrobial testing. Aatcc 1472011 free download asme icc csa astm codes. The aatcc 100 test method is the most commonly chosen test and has become the industry standard for antimicrobial fabric performance in the united states.
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