http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Tiêu chuẩn nhà nước: Phương tiện bảo vệ tay. Quần áo bảo hộ lao động . Giày bảo hộ lao động bằng da và vải. Kính bảo hộ lao động( phân loại): TCVN 2606 -78/ TCVN 2609- 78