Kahulugan at paggamit

4.1 Contamination ng mga pintura at coatings sa pamamagitan ng fungal paglago (magkaroon ng amag, malugon) ay isang karaniwang kababalaghan, and algal growth contamination can also occur under certain conditions. It is well known that differences in environment, light, temperatura, kahalumigmigan, substrate pH and other factors, in addition to the paint combination, can affect the sensitivity of a given painted surface. This test method attempts to provide a way to compare and evaluate the relative properties of different coating formulations under given conditions. This does not mean that a coating that resists growth under these conditions will necessarily resist growth in real-world applications. This method is not intended to simulate or substitute for indoor or outdoor exposure to paint film or related coatings.

Tala 1: The rankings for relative performance of hope are similar to those for outdoor exposure. Coatings designated for use under external conditions should be pretreated by accelerated weathering in a laboratory prior to exposure to fungi. All pre-processing needs to be detailed in the final report. Gayunpaman, this test method should not be used as a substitute for external exposure (i.e. D3456) because many other factors, only some of which are listed, can affect these results.

4.2 Familiarity with microbial technology is required. People without at least basic microbiological training should not use this test method.

ASTM D5590-2017 Standard Test Method para sa Pagtukoy ng Paglaban ng Paint Film at mga Kaugnay na Coatings sa Fungal Fouling sa pamamagitan ng Pinabilis na Apat na Linggong AGAR Plate Assay

Hakbang 1: Saklaw

1.1 The test method includes an accelerated method for determining the relative resistance of two or more paints or coatings to fungal growth.

1.2 Values expressed in SI units shall be considered standard. Ang mga halaga na ibinigay sa mga panaklong ay para sa sanggunian lamang.

1.3 Ang pamantayang ito ay hindi nilayon upang matugunan ang lahat ng mga alalahanin sa kaligtasan, kung meron man, na nauugnay sa paggamit nito. Responsibilidad ng mga gumagamit ng pamantayang ito na magtatag ng angkop na kaligtasan, mga kasanayan sa kalusugan at kapaligiran at upang matukoy ang pagiging angkop ng mga paghihigpit sa regulasyon bago gamitin.

1.4 Ang internasyonal na pamantayang ito ay batay sa mga internasyonal na kinikilalang pamantayan na mga prinsipyo na itinatag sa “Desisyon sa Mga Prinsipyo para sa Pag unlad ng Internasyonal na Pamantayan, Mga Patnubay at Rekomendasyon” inisyu ng Committee on Technical Barriers to Trade (TBT) ng World Trade Organization.