._.--’- Downloaded from https://www.everyspec.com - ., ,.. MIL-STD-81OC 10 March 1975 M8THOD 508.2 FUNGUS Section I ?a au r raDh MK.!2 Section I Index . . . . ... . . . . . . . . . . . . . ..I.1 purpose . . . . . . . . . . . . . . . . . . . ...1.2 Environmental effects . . . . . . . . . . . . . . . 1.3 Guidelines for determining test 508.2-1 508.2-1 508.2-1 Procedures and test conditions . . . . . . . . .. 1.4 Special considerations . . References . . . . . . . . . . . . . . . . . . . ,. 1.5 . . . . . . . . . . . .. 1.6 508.2-3 508.2-4 508.2-5 ‘SectionII Apparatus . . . . . . . . . Preparation for test . . . Procedures . . -. . . . . . Information to be recorded . . . . . . . . . . . .
11.1 . . . . . . . . . . . . 11.2 . . . . . . . . . . . . 11.3 . . . . . . . . . . . . 11.4 508.2-8 508.2-8 508.2-9 508.2-15 1.2 YURPOSE. The Purpose of the fungus chamber test is to aesess the extent to which the test item will support fungal growth and how the fungal growth may ) affect performance or use of the test ,item. 1.3 ENVIRONMENTAL EFFECTS. Fungal growth’impairs the functioning or use of equipment by changing the physical properties of the equipment. 1:3.1 Damaxe mechanisms. The damage mechanisms are aa follows: a. Direct attack on materials.
Non-resistant materials are auscebtible to direct attack as the fungi break .the~terial dowo and use it results in deterioration affecting the physical properties of Examples of non-resistant materiala are: as food. This the material. (1) NaturaI materials - ‘(Products”of natural origin are to this attack) - ost susceptible (a) and cordage). Cellulosic materials (e.g. wood,,paper, natmal fiber textiles (b) Animal and vegetable based adhesives. (c) Grease, oils and many hydrocarbons. (d) Leather. METHOD 508.2 7 April 1981 508.2-1