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ISO 12176-2:2008 specifies performance requirements for electrofusion control units for use with polyethylene (PE) electrofusion fittings for the supply of gaseous fuels or for the conveyance of water for human consumption, including raw water prior to treatment and for the conveyance of water for general purpose or other fluids. The control units are divided into three input voltage classes:…

This International Standard gives a framework for supervising each life cycle phase of smart community infrastructures as system of systems at practice and enables utilizing ISO 37155 series and ISO/TR 37152 in more comprehensive and practical manner especially for community and national authorities as well as relevant major contractors. ISO 37155 series are guidelines for development, operation…

This international standard is intended to provide a protocol for the interlab validation of methods for the characterization of sludge/biosolids physical properties considered that in most cases fresh sludge samples cannot be circulated to several laboratories in different countries for validation purposes as uncontrolled variations of their characteristics would occur.

This international standard specifies a chemical conditioning procedure for sludge/biosolids thus allowing results obtained in different places and laboratories, and on different times to be compared when selecting type and dosage of a conditioning product at laboratory scale.

This International Standard specifies methods for determining the level of particulate contamination in liquids used in hydraulic systems by counting the number of particles deposited on the surface of a membrane filter using an optical microscope. It includes particle counting by two manual methods and image analysis, using either transmitted or incident lighting systems. Particle sizes greater…

IEC 60601-2-31:2020 applies to the BASIC SAFETY and ESSENTIAL PERFORMANCE of EXTERNAL PACEMAKERS powered by an INTERNAL ELECTRICAL POWER SOURCE, hereafter referred to as ME EQUIPMENT. This document applies to PATIENT CABLES as defined in 201.3.209, but does not apply to LEADS as defined in 201.3.206. HAZARDS inherent in the intended physiological function of ME EQUIPMENT within the scope of this…

This international standard specifies the technical requirements for product data protection of Additive Manufacturing Service Platform (AMSP). The following elements are within the scope of this document: Classification of product data information of AMSP and the protection levels. Product data protection at four data-processing stages, i.e. data collection, data display, data transfer and data…

ISO 14313:2007 specifies requirements and provides recommendations for the design, manufacturing, testing and documentation of ball, check, gate and plug valves for application in pipeline systems meeting the requirements of ISO 13623 for the petroleum and natural gas industries. ISO 14313:2007 is not applicable to subsea pipeline valves, as they are covered by a separate International Standard (…

ISO 19109:2015 defines rules for creating and documenting application schemas, including principles for the definition of features. The scope of this International Standard includes the following: - conceptual modelling of features and their properties from a universe of discourse; - definition of application schemas; - use of the conceptual schema language for application schemas; - transition…

This international standard intends to establish a guideline for the ground-based environmental tests of thermal control materials (TCMs) used on spacecraft’s surface. This standard describes the test methods of charged particle radiation(s), solar ultraviolet (UV), atomic oxygen (AO) and thermal cycling. Typical TCMs include, but are not limited to, coatings, optical solar reflector (OSR) and…