Each garment is exposed to mechanical damage. Therefore, the resistance to this type of agents is v

Each garment is exposed to mechanical damage. Therefore, the resistance to this type of agents is very important. When measuring the level of resistance to the agents working clothes mechanical works its tensile strength, tear and abrasion. Clothing that is designed to protect against chemical, biological or weather food trolley is also assessed in terms of resistance to bending and torsion, due to the used in the manufacture of laminates. Materials that are protected from the above factors have been examined and meet the requirements of the standards in accordance with Directive 89/686 / EEC. Ordinates the requirements of resistance to bending, or twisting contained in European standards for protective clothing against chemical, biological, hot and rain.
Types of protective food trolley clothing against chemical and biological agents has been divided into six types: Type 1 and 2, Protective clothing against chemicals in the form of gases, vapors, liquids and particles. Requirements and methodology of the study include the following standards: BS EN 943-1: 2005 / AC: 2006 and BS EN 943-2: 2005. Type 3 Protective clothing against liquid stream - protects against the action of a chemical substance in the form of a liquid food trolley stream. Requirements and methodology of the study shows the PN-EN 14605: 2008. Type 4 Protective clothing against spray protects against chemical substance in the form of spray requirements food trolley and methodology of the study shows the PN-EN 14605: 2008. Type 5 Protective clothing against dust. Requirements and methodology of the study presents EN ISO 13982-1: 2008. Type 6 Protective clothing against liquid splashes. Requirements and methodology of the study presents BS EN 13034 + A1: 2009.
All of the above types of clothing shall be subject to twisting and bending. An exception is a type 6, which is comparable to the other does not necessarily protect against large quantities of various factors. Methodology of the study and classification of protective properties is specified in the PN-EN 14325: 2007. According to the standard material for protective clothing against chemicals food trolley typy1-5 according to the classification of protective clothing against chemical agents should be tested for bending according to DIN EN ISO 7854: 2002, Method B, until the damage and should be classified according to the level of protection shown in Table 1. Higher class clothing is high level of resistance to mechanical damage. In workplaces with a particularly high risk of clothing should be selected class 5 and 6. Protective food trolley clothing is also depending on the types of resistance a certain amount of resistance to crushing cycles. The lowest class 1 job resistance food trolley to at least 1000 cycles crushing and the highest grade 6, at 100 000 cycles. Other requirements are the application food trolley of protective clothing to be used at low temperatures. Resistance test is performed at minus 30 degrees Celsius. It was assumed that the material may be less resistant to cracking at such low temperatures. Class 1 has resistance to crushing at least 100 cycles and the highest grade 6 to 4 000. The difference is so significant. The requirements for protective clothing against biological agents present standard EN 14126: 2007. Regarding the requirements in terms of materials, mechanical properties refers to standard EN 14325: 2007, and so the requirements are the same as for chemical protective clothing. In terms of resistance to bending force, food trolley so the BS EN ISO 7854: 2002, method B. The material food trolley is classified as shown in Table 1, where the bending takes place in a climate of normal or Table 2, where bending is carried out at the negative.