The EN 374-2 norm specifies a test method to the resistance to the gloves penetration against the chemical products and/or the micro organisms. When the gloves resists to penetration, tested by this part of the EN 374, they constitute an effective barrier against the microbiological risks. Demanding Level: 0 to 1 – Penetration: indicates that the product can or can not be resistant to the water and air penetration.