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ISO 965-1:2013 specifies a tolerance system for ISO general purpose metric screw threads (M) conforming to ISO 261. The tolerance system refers to the basic profile according to ISO 68-1.
This International Standard specifies a static test method for measuring the strength of a conveyor belt mechanical fastening; the mechanical joints can be either of the type employing a connecting rod or of a type which does not employ a connecting rod. This International Standard does not cover vulcanized joints.
This International Standard is neither applicable to nor valid for light conveyor belts, as described in ISO 21183-1.
NOTE The purpose of the test specified in this International Standard is to eliminate mechanical fastenings of insufficient static strength. It is intended to establish a dynamic test at a later date.
This document specifies a test method for the determination of Fatty Acid Methyl Ester (FAME) content in diesel fuel or domestic heating fuel by mid infrared spectrometry, which applies to FAME contents of the three measurement ranges as follows: - range A: for FAME contents ranging from approx. 0,05 % (V/V) to approx. 3 % (V/V); - range B: for FAME contents ranging from approx. 3 % (V/V) to approx. 20 % (V/V); - range C: for FAME contents ranging from approx. 20 % (V/V) to approx. 50 % (V/V). Principally, higher FAME contents can also be analysed if diluted; however, no precision data for results outside the specified range is available at present. This test method was verified to be applicable to samples which contain FAME conforming to EN 14214. Reliable quantitative results are obtained only if the samples do not contain any significant amounts of other interfering components, especially esters and other carbonyl compounds which possess absorption bands in the spectral region used for quantification of FAME. If such interfering components are present, this test method is expected to produce higher values. NOTE 1 For the purposes of this document, the term "% (V/V)" is used to represent the volume fraction (φ) of a material. NOTE 2 For conversion of grams FAME per litre (g FAME/l) to volume fraction, a fixed density for FAME of 883,0 kg/m3 is adopted. WARNING - The use of this document can involve hazardous materials, operations and equipment. This document does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this document to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
This document specifies a method for determining the total acidity, calculated as acetic acid, of ethanol to be used in petrol blends. It is applicable to ethanol having total acid contents of between 0,003 % (m/m) and 0,015 % (m/m). NOTE For the purposes of this document, the terms "% (m/m)" and "% (V/V)" are used to represent the mass fraction and the volume fraction, respectively. WARNING - Use of this document can involve hazardous materials, operations and equipment. This document does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this document to take appropriate measures to ensure the safety and health of personnel prior to the application of the document, and to fulfil statutory and regulatory restrictions for this purpose.
This document provides guidelines for the characterization of native species and products based on native species, which have been collected, harvested and/or processed, to enable the establishment of minimum quality and safety requirements considering sustainable management of biodiversity. A special focus is on biodiversity protection along all steps of the value chain of those products. Characterization of native species and products allows to determine requirements that have not been considered, providing this information to interested parties, including farmers, producers, exporters, importers and authorities, as well as consumers and users. This document applies to native species and products based on native species from plants, algae and fungi collected or harvested. This document does not apply to native animal species and wood products.
This document specifies minimum requirements for achieving compatibility between the various items of personal protective equipment (PPE) worn by firefighters and who are at risk of exposure to high levels of heat and/or flame while carrying out firefighting activities, including those associated with fighting fires in and around structures (i.e. hot zones). This document includes examples of physical compatibility, thermal compatibility, liquid compatibility, particulate compatibility and ergonomic compatibility. The requirements specified in ISO /TS 20141Personal safety — Personal protective equipment —Guidelines on compatibility testing of PPE are refenced by this Standard and are to be applied to achieve the required compatibility of PPE. The requirements for the use of different items of PPE by firefighters may be different in each firefighting organization and will be determined by an appropriate risk assessment. Therefore, according to the risk assessment, each firefighting organization shall ensure that the compatibility of PPE aligns with the identified risks and hazards. However, additional tests should be implemented if required, to ensure overall compliance with ISO 20141.
This document provides a fire engineering application relative to the fire resistance assessment of a multi-storey timber building according to the methodology given in ISO 24679-1. In an attempt to facilitate the understanding of the design process presented herein, this document follows the same step-by-step procedure as that given in ISO 24679-1.
The fire safety engineering approach is applied to a multi-storey timber building with respect to fire resistance and considers specific design fire scenarios, which impact the fire resistance of structural members.
A component-level (member analysis) approach to fire performance analysis is adopted in this worked example. Such an approach generally provides a more conservative design than a system-level (global structural) analysis or an analysis of parts of the structure where interaction between components can be assessed. An advantage of the component-level approach is that calculations can be done with the use of simple analytical models or spreadsheets. Advanced modelling using computational fluid dynamics is presented to replicate an actual office cubicle fire scenario and for assessing timber contribution to fire growth, intensity and duration, if any. The thermo-structural behaviour of the timber elements is assessed through advanced modelling using the finite element method.
The fire design scenarios chosen in this document are only used for the evaluation of the structural fire resistance. They are not applicable for assessing, for example, smoke production, tenability conditions or other life safety conditions.
This document establishes basic principles and specifies requirements and methods to determine the cardinal values of bacteria and yeast strains and use them to predict microbial growth.
Four main steps are required: (1) Determination of the cardinal values in culture medium, (2) Determination of the correction factor in the target food, (3) Validation of the model and (4) Simulations.
Four environmental factors are considered: temperature, pH, aw and inhibitors (e.g. organic acids).
NOTE Microbial competition is not considered as an inhibitor in this standard and can be addressed by proper modelling approaches. The determination of cardinal values requires a two-step approach:
— the determination of maximum specific growth rates of the studied strain grown in broth under a defined range of values of the studied environmental factor(s), and
— the use of recognized predictive microbiology secondary models to fit the obtained experimental data to obtain the cardinal values.
The use of cardinal values in microbial growth simulation is based on predictive microbiology primary and secondary models. The cardinal values are combined with challenge test data to consider the matrix effect. Depending on the goal of the growth simulation, it is important to account for variation of cardinal values between strains within a bacterial or yeasts species.
Cardinal values are a good indicator of a strain growth ability for the studied environmental factors. They are therefore used as criteria to select strains, in addition to their origin and virulence, when performing growth challenge tests (standard ISO 20976-1) or in methods validation (ISO 16140 standards serie).
NOTE This document focuses on the determination of cardinal values for one strain. The same methodology can be used to characterize multiple strains independently to cover biological strain variability and include these results in the predictions.
This document provides specific technical guidance for the production of pure metals or their corresponding crystalline salt certified reference materials (CRMs) in accordance with the general requirements of ISO 17034. In this document, reference to a CRM is limited to solid pure metal and crystalline salt certified reference materials, including candidate materials, unless otherwise noted.
ISO 284:2012 specifies the maximum electrical resistance of a conveyor belt and the corresponding test method. The test is intended to ensure that the belt is sufficiently conductive to avoid the accumulation of electrical static charge which can be developed during service use. ISO 284:2012 is not suitable or applicable to light conveyor belts as described in ISO 21183-1, the static electrical properties of which are measured by ISO 21178.
This document covers the design of PE and PP rigid packaging with respect to compatibility of the design with the collecting, sorting, and recycling processes. Packaging constituents and packaging components made of other materials than PE and PP are also covered by this standard as they need to be evaluated on compatibility with polymer recycling.
This document provides product category rules (PCR) for Type III environmental product declarations (EPD) for resilient, textile, laminate and modular mechanical locked floor coverings, as well for underlays specific to these floor coverings. This document applies to the following products: - resilient floor coverings manufactured from plastics, linoleum, cork or rubber, including loose-laid mats; - textile floor coverings, including loose-laid mats, rugs and runners; - laminate floor coverings; - modular mechanical locked floor coverings; - underlays. An EPD can be developed for single or individual products, product groups and average products.
This document specifies the limits of sizes for the major, pitch and minor diameters of ISO metric trapezoidal screw threads (Tr) conforming to ISO 2902 having basic and design profiles in accordance with ISO 2901. This document is applicable to the metric trapezoidal screw threads with the seven recommended tolerance classes specified by ISO 2903.
Modifications to EN 14917:2021
This document specifies requirements and test methods for durability, strength, security and function for top hung projecting hardware for windows and door height windows. Note This document is applicable to top hung projecting reversible hardware whether fitted with integral restrictors or not. Where any restrictor is used it is intended to be tested in accordance with EN 13126-5.
This document specifies requirements and test methods for durability, strength, security and function for side hung projecting reversible hardware for windows and door height windows. Note This document is applicable to side hung projecting reversible hardware whether fitted with integral restrictors or not. Where any restrictor is used it is intended to be tested in accordance with EN 13126-5.
This document specifies the safety requirements and measures for horizontal cutting cross-cut sawing machines with one saw unit (radial arm saws) with manual loading and/or unloading of the workpiece and capable of continuous production use, hereinafter referred to also as “machines”.
This document specifies the safety requirements and measures for single blade automatic and semi-automatic up-cutting cross-cut sawing machines, capable of continuous production use, hereinafter referred to also as “machines”.