![]() No smell of banana oil could be detected. I ordered a brand new Scott Pro2000 A2P3 filter and screwed it into my ShM-62u (GP-5) and checked the seal the filter should make in the inhale port by holding a small open bottle of liquid banana oil closely around the inhale port thread area and repeatedly inhaled strongly exclusively with my nose, then exhaled normally during a period of roughly a minute or so. I repeated the fit check experiment done by Weaponsandstuff93 with Scott Pro2000 series filters on GOST 8762-75 threaded masks in order to confirm his findings. ![]() This latter method allows for quite precise localization of any leaks. Weaponsandstuff93 uses a different method, simply opening a bottle of liquid banana oil and letting it evaporate that way while holding it right next to any specific area of the respirator that you want to test for leakage. This is mostly done using some kind of fit check hood surrounding the test subject's head and some method of adding banana oil vapours to the insides of the hood. Usually this is done for checking the fit of a respirator to someone's face. Responding to the rumours, Weaponsandstuff93 did a video testing whether Scott Pro2000 series filters do indeed properly fit in GOST 8762-75 threaded masks, and concluded they appear to fit and make a proper airtight seal.Īs most of you probably know, isoamyl acetate, also known as and from here on referred to by 'banana oil', is used for performing respirator fit checks because of it's strong smell and it's low toxicity. I have not spent too much time researching whether the Scott Pro2000 series filters are indeed DIN 3182 threaded as I was more interested in whether they consistently fit in GOST 8762-75 threaded masks or not.Īccording to the Gas mask and Respirator wiki DIN 3182 threaded filters will fit in both GOST 8762-75 and STANAG 4155 threaded receivers, the source for this claim is unclear and I am not in the posession of both the STANAG 4155 and DIN 3182 standards documents, thus unable to verify this. DIN 3182 is a standard from the Deutsches Institut für Normung, similar to STANAG 4155 and GOST 8762-75.
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