ISO INTERNATIONAL 5423 STANDARD First edition 1992-02-01 Moulded plastics footwear -- Lined or unlined polyurethane boots for general industrial use -- Specification Articles chaussants moules en plastique -- Bottes industrielles douhlees ou non doublees en polyurethanne d'usage general -- Specifications Referencenumber ISQ 5423:1992(E) IHS Not for Resale ISO 5423:1992(E) Foreword iso (the International Organization for Standardization) is a worldwide federation of national standards bodies (isO member bodies). The work technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, govern- mental and non-governmental, in liaison with Iso, also take part in the work. IsO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft internationat Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an Inter- bodies casting a vote. International Standard Iso 5423 was prepared by Technical Committee ISO/TC 45, Rubber and rubber products. Annexes A, B, C, D and E form an integral part of this International Standard. Annex F is for information only. ISO1992 All rlghts reserved. No part of this publication may be reproduced or utlized In any form or by, any means, electronic or mechanlcal, Including photocopying and microfilm, without permlssion in writing from the publisher. International Organization for Standardization Case Postale 56 · CH-1211 Geneve 20 · Switzerland Printed In Switzeriand lf Not for Resale without license from IHS INTERNATIONAL STANDARD 1SO 5423:1992(E) Moulded plastics footwear .-- Lined or unlined polyurethane boots for general industrial use -- Specification 1 Scope 3 Definitions For the purposes of this International Standard, the for boots,moulded from polyurethane compound,for definitions given in 1SO 10335 apply. general industrial use. The boots may be either fabric-lined or unlined and of any style from ankle boots to full thigh height inclusive. Design requirements 4 Normative references 2 Suggested ranges for the heights of boots are NOTE 1 The following standards contain provisions which, given in annex F. through reference in this text, constitute provisions of this International Standard. At the time of publi- cation, the editions indicated were valid. All stan- dards are subject to revision, and parties to 4.1 Soling pattern agreements based on this International Standard are encouraged to investigate the possibility of ap- The soling shall have radiused corners at the base ptying the most recent editions of the standards in- of the sole pattern and the radius for such corners dicated below. Members of IEC and ISO maintain registers of currently valid International Standards. shall be not less than 1,5 mm. The pattern of the soling can have a significant ISO 37:1977, Rubber, vulcanized --- Determination of NOTE 2 effect on the formation of premature cracks. tensile stress-strain properties. iso 48:1979, Vulcanized rubbers - Determination of hardness (Hardness between 30 and 85 IRHD) 4.2 Minimum thicknesses IsO 458-1:1985. Plastics -- Determination of stiffness The minimum thicknesses of the boot shall be in in torsion of flexible materials --- Part 1: General accordance with table 1 for each individual value method. obtained when measured as described in annex A. Is0/R 463:1965. Dial gauges reading in 0.01 mm. 0.001 in and 0.000 1 in. Iso 471:1983, Rubber - Standard temperatures, hu- 4.3 Materials and components midities and times for the conditioning and testing of test pieces. The upper, soling and heel shall be moulded from homogeneously mixed polyurethane compound.It isO 10335:1990, Rubber and plastics footwear .- No- may be cellular or a combination of celluiar and menclature. non-ceilular Copyright International Organization for S