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ASTM D5588-97(2021)
Standard Test Method for Determination of the Microbial Condition of Paint, Paint Raw Materials, and Plant Areas
NORMA vydaná dňa 1.11.2021
Informácie o norme:
Označenie normy: ASTM D5588-97(2021)
Dátum vydania normy: 1.11.2021
Kód tovaru: NS-1043786
Počet strán: 5
Približná hmotnosť: 15 g (0.03 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Kategórie - podobné normy:
Anotácia textu normy ASTM D5588-97(2021) :
Keywords:
bacteria, contamination, fungi, microorganism, plant housekeeping, sterility, yeast,, ICS Number Code 87.040 (Paints and varnishes)
Doplňujúce informácie
| Significance and Use |
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3.1?Spoilage of paint in the container is often related to the use of contaminated raw materials, water (particularly recycled washwater), vessels, piping, and equipment in the manufacturing plant. There is a need for a simple method to determine the presence or absence of microorganisms in plants that manufacture paints and coatings. Such a determination enables the manufacturer to establish the point of contamination (that is, raw materials or problem housekeeping areas in the plant) to help in solving the spoilage problem. Note 1:?Some contamination in plant areas is to be expected,
since microorganisms are ubiquitous and cannot generally be
eliminated practically (it is what an in-can preservative is
supposed to control). Excessive levels of contamination or
contaminated raw materials can exceed the capability of the
preservative. If you have excessive contamination in the plant,
there are methods for decontamination including steam,
preservatives, bleach, etc. These should be discussed with your
biocide supplier and used with care. Recovery of spoiled or
contaminated products is often not feasible, so an adequate level
of the appropriate biocide in conjunction with good plant
housekeeping practices are essential. Your biocide supplier can
also help here.
3.2?This test method may be used by persons without basic microbiological training, but some training on aseptic techniques would be recommended. Note 2:?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 5.1). It is
recommended that you consult with your biocide supplier, raw
material supplier, or an independent testing laboratory to confirm
questionable results.
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| 1. Scope |
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1.1?This test method covers a procedure for the determination of the microbial condition (contamination or sterility) of raw materials used in the manufacture of paint, and the microbial condition of paint and paint manufacturing areas. 1.2?The values 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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