ISO 13998:2003 pdf download

ISO 13998:2003 pdf download.Protective clothing – Aprons, trousers and vests protecting against cuts and stabs by hand knives.
5.4.2 Restraint of aprons
The maximum displacement of the defined central point of the apron on the chest, shall be 75 mm when a force of
30 N is applied in lateral and downwards directions as described in 7.6.
5.4.3 Apron supports
All apron supports shall be adjustable in length and the adjusters shall be of a type that does not slip under load. No strap shall pull through a buckle more than 10 mm under a load of (100 5) N during testing according to 7.6.1.
The apron support over the shoulder shall be at least 35 mm wide. The apron support around the waist shall be at least 25 mm wide. Provision shall be made so that any free end of a strap or belt can be secured to the straps, belt, or apron after adjustment of the apron support. Fastenings and adjusters shall be irremovable except by intent. Fastening points for X form and Y form straps shall be provided on at least as many points as indicated in figure 2 for aprons designed to take these straps
It may be necessary that fabric supports can be removed for separate cleaning of the support and protective parts of a garment. This could be a requirement in some industries (see the introduction to this European Standard).
Apron supports shall be designed so that they do not exert a force on the back of the neck of the user.
5.4.4 Divided aprons
Divided aprons shall be provided with straps and supports as specified for other aprons, and shall in addition have straps or other closures to restrain the divided sections to the thighs.
5.4.5 Protective trousers
Protective trousers shall be provided with an adjustable waist strap or over-the-shoulder straps (“braces”).
5.4.6 Protective vests
Protective vests shall be provided with adjustable side closures or an adjustable back closure.
5.5 Ergonomic requirements
The protective garments shall be designed to minimise discomfort and impediment while wearing them. When tested according to 7.7 the mean score of all subjects shall be less than 2 for performance level 1 garments and 2,5 for performance level 2 garments.
5.6 Mass
Performance Level 1: Protective aprons and other garments shall be constructed of material in the protective zone of less than 3 kg . m2. Testing shall be in accordance with 7.8.
Performance Level 2: Protective aprons shall be constructed of material in the protective zone of less than 4,5 kg . m2. Testing shall be in accordance with 7.8.
5.7 Penetration resistance
5.7.1 Interstices and holes
Penetration resistance shall be provided over the whole area of the minimum zone of protection provided by the garment. The dimensions of interstices between chain mail rings or any other components, or holes through any components of the protective material of performance level 1 garments shall be such that the 4 mm wide gauge number 2 described in 5.5 of EN 1082-1:1996 is unable to pass through them when applied as described in 6.3 of EN 1082-1:1996 and 7.9.1 of this European Standard.
The dimensions of interstices between any plates, rings or similar components, or holes through any components of the protective material of performance level 2 aprons shall be such that the gauge described in 6.2 and shown in Figure 4, is unable to pass through the garment when applied as described in 7.9.1.
5.7.2 Blade penetration, Level 1
The material of the protective zone of performance level 1 garments shall resist knife impact penetration when tested in accordance with 7.9.2. (2,45 J). The mean penetration shall not exceed 10 mm and no single penetration shall exceed 17 mm.
5.7.3 Blade penetration, Level 2
Penetration resistance shall be provided over the whole protective surface of performance level 2 garments, and when any part of the surface is tested in accordance with 7.9.2 (4,9 J) the mean penetration shall not exceed 12 mm and no single penetration shall exceed 15 mm.
5.8 Cut resistance of performance level 1 garments
Cut resistance shall be provided over the whole area of the minimum zone of protection provided by the garment. testing shall be conducted in accordance with the method given in 7.10. The mean cutting force shall not be less than 50 N. Garments constructed of metal rings or metal plates are excluded from this requirement.
5.9 Tensile strength of metal rings
The tensile strength of chain mail protective material when tested in accordance with the method in 7.11 for performance level 1 garments shall be such that no ring or link shall break or open when a force of 100 N is applied. When tested according to 7.11 no rings, link or plate in a performance level 2 garments shall break or open when a force of 200 N is applied.