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1. GOST R EN 1822-4-2012
High efficiency air filters (ЕРА, HEPA and ULPA). Part 4. Determining leakage of filter elements (scan method)
ГОСТ Р ЕН 1822-4-2012
Высокоэффективные фильтры очистки воздуха ЕРА, HEPA и ULPA. Часть 4. Испытания фильтров на утечку (метод
сканирования)
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