The International Organization for Standardization (ISO). Second edition. 2002-12-15. This second edition cancels and replaces the first edition (ISO 3376:1976), which has been technically revised. The Common Market for Eastern and Southern Africa (COMESA) standard DHS 234: 2005 is technically identical to ISO 3376::2002. 12p. This International Standard specifies a method for determining the tensile strength, elongation at a specified load and elongation at break of leather. It is applicable to all types of leather.