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TÜRK BELGELENDİRME STANDARDLARI ENSTİTÜSÜ KRİTERİ...5.3.2 Bakteri filtrasyon verimliliği (BFV) TS EN 14683 +AC:2019 standardı Ek B’ye uygun olarak deneye tabi tutulduğunda,
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