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1 Scope 1.1 This Standard applies to individual gas appliance pressure regulators, which are not a part of a combination control (see Clause 3, Definitions), constructed entirely of new, unused parts and materials, hereinafter referred to as regulators, intended for application on individual gas appliances. This Standard also applies to negative gas appliance pressure regulators (see Clause 3…

1 Scope 1.1 This Standard provides the minimum requirements, unless otherwise specified by the authority having jurisdiction, for the purity of compressed breathing air supplied to the service outlet and for breathing air systems required to produce, store, and distribute such air. 1.2 This Standard is limited to compressed breathing air and compressed breathing air systems used in the…

1.1 This Standard establishes the test method, criteria, and device to evaluate a hydrogen fueling station dispensing system (hereinafter referred to as a “dispenser”) as it relates to achieving the protocols specified in SAE J2601 and SAE J2799 with light duty vehicle hydrogen storage systems less than 248.6 L (10 kg H70). The testing evaluation applies to dispensers designed to fill vehicle…

1.1 Scope and object 1.1.1 This Standard applies to switchboards nominally rated at 1 000 V or less and intended for use in accordance with the Canadian Electrical Code, Part I (CE Code, Part I), the National Electrical Code (NEC), ANSI/NFPA 70, and the Mexican Standard for Electrical Installations (Utility), NOM-001-SEDE. 1.1.2 In this standard the term switchboard is intended to refer…

1 Scope 1.1 This Standard applies to photovoltaic (re)combiners rated up to 2000 V dc or 750 V ac, for use on photovoltaic (PV) systems installed in nonhazardous locations in accordance with CSA C22.1, Canadian Electrical Code, Part I. 1.2 (Re)combiners for use in photovoltaic systems that are ungrounded, positive grounded, and/or negative grounded are within the scope of this Standard…

1 Scope This part of IEC 61000 defines the immunity test methods and range of preferred test levels for electrical and electronic equipment connected to low-voltage power supply networks for voltage dips, short interruptions, and voltage variations. This standard applies to electrical and electronic equipment having a rated input current not exceeding 16 A per phase, for connection to 50 Hz…

1 Scope This part of IEC 61000 relates to the immunity requirements and test methods for electrical and electronic equipment, under operational conditions, to ring waves occurring in low-voltage power, control and signal lines supplied by public and non-public networks. The object of this document is to establish a common reference for evaluating the immunity of electrical and electronic…

1.1 Organization and content This standard prescribes packaging for handling, offering for transport and transport of Explosives (Class 1). This standard consists of four parts and three annexes. Part 1 specifies general requirements for the selection and use of packaging including application, packaging provisions and re-use of packaging. Part 2 specifies requirements for UN standardized…

1.1 Organization and content This standard specifies the requirements for the reconditioning, remanufacturing and repair of steel and plastic drums for the transportation of dangerous goods. This standard consists of three parts and an annex. Part I specifies the general requirements for drum eligibility, and a registered facility’s quality management system. Part II specifies the…

This document presents principles and examples of practical application for the construction of appropriate subjective scales for use in the assessment and evaluation of the physical environment. It does not standardize particular scales. It considers scales of perception, comfort, preference, acceptability, expression form and tolerance, and environmental components such as thermal, visual, air…