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Head: Sakun Vira M.. Development of the national regulatory document DSTU EN 405 (EN 405:2001+A1:2009, IDT) Respiratory protective devices - Valved filtering half masks to protect against gases or gases and particles - Requirements, testing, marking. (popup.stage: ). Scientific-Research center "Naftohim". № 0223U000004
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Updated: 2026-03-28
