ISO 20347:2012 pdf download.Personal protective equipment一Occupational footwear.
ISO 20347 specifies basic and additional (optional) requirements for occupational footwear that is not exposed to any mechanical risks (impact or compression).
Special risks are covered by complementary job-related standards (e.g. footwear for firefighters, electrical insulating footwear, protection against chain saw injuries, protection against chemicals and against molten metal splash, protection for motor cycle riders).
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 17075, Leather — Chemical tests — Determination of chromium(Vl) content
ISO 20344:2011, Personal protective equipment — Test methods for footwear
ISO 20345:2011, Personal protective equipment — Safety footwear
EN 12568:2010, Foot and leg protectors — Requirements and test methods for toecaps and penetration resistant inserts
EN 50321, Electrically insulating footwear for working on low voltage installations
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
NOTE The component parts of footwear are illustrated in Figures 1 and 2.
3.1
occupational footwear
footwear incorporating protective features to protect the wearer from injuries which could arise through accidents
3.2
leather
hide or skin tanned to be imputrescible
3.2.1
leather split
flesh or middle part of a hide or skin, obtained by splitting a thick leather, which is tanned to be imputrescible
3.3
rubber
vulcanized elastomers
3.4
polymeric materials
large molecules composed of repeating structural units (monomer) typically connected by chemical bond
EXAMPLE Polyurethane (PU) or polyvinyichloride (PVC).
3.5
insole
non-removable component used to form the base of the shoe to which the upper is usually attached during lasting
3.6
insock
removable or non-removable footwear component used to cover part or all of the insole
NOTE “Non-removable” means that the insock cannot be removed without being damaged.
3.7
lining
material covering the inner surface of the upper
NOTE 1 The wearer’s foot is in direct contact with the lining.
NOTE 2 Where an upper is split at the forepart to house the toecap, or if an external piece of material is stitched to the upper to form a pocket to house the toecap, the material under the toecap acts as a lining.
3.7.1
vamp lining
material covering the inner surface of the forepart of the upper
3.7.2
quarter lining
material covering the inner surface of the quarters of the upper
3.8
cleat(s)
protruding part(s) of the outer surface of the sole
3.9
rigid outsole
NOTE When tested in accordance with ISO 20344:2011, 8.4.1.
3.10
cellular outsole
outsole having a density of 0,9 g/ml or less, with a cell structure visible under lOx magnification.ISO 20347 pdf download.