Free ISO Standards

This document specifies a method for measuring productivity of digital copying devices and multifunctional devices with various copying modes and a single one-sided original. The document is applicable to digital copying devices and multifunctional devices. The document is intended to be used for...

This document enables the advancement of interoperability from the data/information exchange paradigm to knowledge sharing at decreasing level of abstraction, starting at IT concept level (semantic coordination) through business domain concept level (agreed service function level cooperation),...

This document specifies test methods for evaluations of forage harvester function and performance, covering forage harvesters which cut the crop directly at full width or from spaced-apart plant rows, or which pick up pre-cut crop. It applies to forage harvesters with driven knives for chopping and...

This document specifies laboratory methods for measuring the impact sound insulation of floor assemblies. The test results can be used to compare the sound insulation properties of building elements, classify elements according to their sound insulation capabilities, help design building products...

This document describes methods for the determination of mineralogical phases often present as additives or reaction products in carbon containing or graphitic refractory products by X-ray Diffraction (XRD) using a Bragg-Brentano diffractometer. It includes details of sample preparation and general...

This document specifies an instrumental method for the routine determination of pH within the range pH 2 to pH 12 using a glass electrode in a 1:5 (volume fraction) suspension of soil, sludge and treated biowaste in either water (pH in H2O), in 1 mol/l potassium chloride solution (pH in KCl) or in...

This document specifies a method for measuring the digital printing productivity of digital printing devices with various office applications and print job characteristics. This document is applicable to digital printing devices, including single-function and multi-function devices, regardless of...

This document provides lists of reference standards which contain general information, implant device or application-specific information, material specifications, or test methods related to coatings. These reference standards can be used to develop product coatings for specified applications when...

This document defines comprehensive quality requirements for fusion welding of metallic materials both in workshops and at field installation sites.

This document specifies the general principles of a method for determining the transient extensional viscosity of polymer melts. The procedure details the measurement of polymer melt specimens stretched uniaxially under conditions of constant strain rate and constant temperature. The method is...

This document defines elementary quality requirements for fusion welding of metallic materials both in workshops and at field installation sites.

This document specifies laboratory test facilities and equipment for sound insulation measurements of building elements, such as: - components and materials; - building elements; - technical elements (small building elements); - sound insulation improvement systems. It is applicable to laboratory...

This document shows some examples of markings (words, numbers or symbols) for the identification of packaging materials. This document is applicable to all types of packaging in order to enable the identification of the materials used.

This document specifies how the symbolic representation of thermally sprayed coatings is indicated on drawings.

The purpose of this document is to define metrological characteristics and methods for testing CMSs that use the principle of CT (based on X-ray attenuation contrast) as a single sensor and which are dedicated to dimensional measurements of technical workpieces. This excludes medical imaging,...

This International Standard describes the calculation of mass flow for sizing pressure relief devices for parts of refrigerating systems. NOTE The term "refrigerating system" used in this International Standard includes heat pumps. This International Standard describes the calculation of discharge...