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Standard Test Method for Resistance of Emulsion Paints in the Container to Attack by Microorganisms (Includes all amendments And changes 6/24/2024).
Přeložit název
NORMA vydána dne 1.8.2020
Označení normy: ASTM D2574-16(2020)e1
Poznámka: NEPLATNÁ
Datum vydání normy: 1.8.2020
Kód zboží: NS-1001382
Počet stran: 4
Přibližná hmotnost: 12 g (0.03 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Keywords:
bacteria, contamination, microorganism, preservative, resistance ,, ICS Number Code 87.040 (Paints and varnishes)
Significance and Use | ||
4.1 Spoilage of paint in the container can result in putrefaction, lowered pH, gas formation, and decrease in viscosity. This test method provides a standard procedure for the evaluation of the resistance of emulsion paints to microbial deterioration. The results should enable: (1) the paint manufacturer to select an effective preservative and (2) the supplier of preservatives to evaluate the performance in emulsion paints of competitive and developmental preservatives. 4.2 This test method should be used preferably by persons who have had basic microbiological training. Note 1: The reliability of the results obtained from this test
method is extremely dependent on the techniques employed. Improper
techniques can result in a sterile sample appearing to be
contaminated, and even worse, a contaminated sample appearing to be
sterile (see also Note 2). It
is recommended that you consult with your biocide supplier, raw
material supplier, or an independent testing laboratory to confirm
questionable results. Formulation and raw materials’ quality may
also vary and thereby affect the test results.
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1. Scope | ||
1.1 This test method covers the determination of the relative resistance of emulsion paints to attack in the container by microorganisms. 1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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2. Referenced Documents | ||
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