This document specifies quality aspects that can be defined but that are not normally found on a drawing specification.
It covers the following:
— single‑piece piston rings of grey cast iron or steel;
— multi‑piece piston rings (oil control rings) consisting of cast iron parts and spring components; and
— single‑piece and multi‑piece oil control rings of steel, i.e. oil control rings…
Intelligent transport systems — Reference model architecture(s) for the ITS sector — Part 5: Require...
An intelligent transport system (ITS) reference architecture is a tool that describes how an ITS delivers one or more ITS services. It includes a high-level description of the major elements and the interconnections among them that are needed for the service(s) to be provided to stakeholders. It provides the framework around which the interfaces, specifications, and detailed ITS designs can be…
Information technology — MPEG audio technologies — Part 5: Uncompressed audio in MPEG-4 file format
This document defines how uncompressed audio is carried in files in the family of standards based on the ISO base media file format. This includes mono, stereo and multi-channel audio in Linear Pulse Code Modulation (LPCM) format with various word lengths and sampling rates, and also floating point format. Such representations also occur in other container formats, such as RIFF WAV or AIFF.
Medical electrical equipment — Part 2-31: Particular requirements for the basic safety and essential...
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…
Household and similar electrical appliances - Test code for the determination of airborne acoustical...
IEC 60704-2-7:2020 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition.
IEC 60704-2-7:2020 applies to electrical fans (including their accessories and their component parts) for household…
Household and similar electrical appliances - Test code for the determination of airborne acoustical...
IEC 60704-2-7:2020 applies to electrical fans (including their accessories and their component parts) for household and similar use, designed for AC or DC supply. The motor, the impeller and their housing, if any, form a single unit. These particular requirements apply to:
– conventional fans,
– table fans,
– pedestal fans,
– ceiling fans,
– bladeless fans,
– wall bracket fans,
– ceiling…
Comparison of toxic gas data from different tests — Part 1: Guidance and requirements
This document provides principles for characterizing the measured production of toxic gases from a laboratory fire test and provides bases for comparing the results between different types and scales of such tests. It also includes consideration of the uncertainties in the gas determinations. The combined uncertainty is a key factor in the ability to establish similarity or difference of test…
Information model of Chinese materia medica processing
This document specifies an information model within the field of Chinese materia medica processing. It defines a set of domain constraints of sanctioned characteristics, each composed of a relationship and an applicable information model.
This model aims at representing the concepts applicable to Chinese materia medica processing in the making of decoction pieces.
This document is not…
