Free Standards Library

ISO 4044:2017 pdf download - Leather — Chemical tests — Preparation of chemical test samples. 6 Preparation of test sample 6.1 Sample preparation Test pieces that are wet (i.e. in excess of approximately 30 % moisture) should...

ISO 3994:2007 pdf download - Plastics hoses — Helical-thermoplastic-reinforced thermoplastics hoses for suction and discharge of aqueous materials — Specification. 1 Scope This International Standard specifies the requirements for three types of helical-thermoplastic-reinforced thermoplastics hoses for suction...

ISO 3862:2020 pdf download - Rubber hoses and hose assemblies — Rubber-covered spiral-wire-reinforced hydraulic types for oil-based or water-based fluids — Specification 3 Terms and definitions For the purposes of this document, the terms and definitions given...

ISO 3861:2021 pdf download - Rubber hoses and hose assemblies for sand and grit blasting — Specification. 2 Normative references The following documents are referred to in the text in such a way that some or all...

ISO 3669:2020 pdf download - Vacuum technology — Dimensions of knife-edge flanges. 1 Scope This document specifies the dimensions of fixed or rotatable bolted knife-edge flanges used in vacuum systems for pressures ranging from atmospheric to as...

ISO 2692:2021 pdf download - Geometrical product specifications (GPS) — Geometrical tolerancing — Maximum material requirement (MMR), least material requirement (LMR) and reciprocity requirement (RPR). 3.12 maximum material requirement MMR requirement for a feature of linear size...

ISO 2076:2021 pdf download - Textiles — Man-made fibres — Generic names. 1  Scope This document defines the generic names used to designate the different categories of man-made fibres, based on a main polymer, currently manufactured on...

ISO 1432:2021 pdf download - Rubber, vulcanized or thermoplastic — Determination of low-temperature stiffening (Gehman test). 5.4 Heat-transfer medium, liquid or gaseous, which remains fluid at the test temperature and which does not appreciably affect the material...