Rechercher

1 Scope 1.1 This Standard applies to newly produced gas-fired low-pressure steam and hot water boilers with gas inlet pressure ratings not exceeding 0.5 psi (3.5 kPa) and having input ratings of less than 12 500 000 Btu/h (3 663 389 W) (see Clause 3), hereinafter referred to as boilers,* constructed entirely of new unused parts and materials, a) for operation at or below the following…

1 Scope 1.1 This Standard covers plumbing fittings, including the following: a) automatic compensating valves other than those for individual wall-mounted showering systems; b) solenoid valves; c) temperature-actuated in-line mixing valves; d) thermal expansion relief valves; and e) trap primers. 1.2 This Standard does not cover the following plumbing supply fittings and accessories…

1 Scope 1.1 General This Standard applies to self-acting spring-operated devices that automatically reduce the initial pressure in water systems to a set lower pressure. It applies to devices that are of the direct-acting diaphragm type with a means for adjusting the pressure setting. Valves can be with or without an integral bypass relief valve or strainer. 1.2 Sizes This Standard applies to…

1 Domaine d’application 1.1 Cette norme présente des méthodes d’évaluation des matières polymères et des pièces fabriquées de ces matières susceptibles d’être utilisées dans l’appareillage électrique visé par le Code canadien de l’électricité, Deuxième partie, en ce qui a trait aux propriétés suivantes : a) inflammabilité; b) propriétés mécaniques; c) propriétés thermiques; d)…

1 Scope 1.1 Inclusions This Standard specifies requirements for manually or automatically operated valves, in sizes NPS 4 and smaller. Valves covered by this Standard are intended for installation as water shutoff valves between the meter and the supply stop. Note: Manually or automatically operated valves covered by this Standard are also known as supply line stops. 1.2 This Standard does…

1 Scope 1.1 This Standard covers plumbing fixtures made of stainless steel alloys and specifies requirements for materials, construction, performance, testing, and markings. Note: The term “corrosion-resisting steel” is also applied to stainless steel. 1.2 This Standard covers the following plumbing fixtures: a) bathtubs; b) bidets; c) drinking fountains and water coolers; d)…

1 Scope 1.1 This Standard covers spuds and flush valves for water closet bowls, tanks, and urinals. 1.2 The provisions of this Standard are not intended to prevent the use of alternative materials or methods of construction or design, provided any such alternative meets the performance criteria outlined herein. 1.3 In this Standard, “shall” is used to express a requirement, i.e., a…

1.1 Scope This International Standard applies to the BASIC SAFETY and ESSENTIAL PERFORMANCE of MEDICAL ELECTRICAL EQUIPMENT and MEDICAL ELECTRICAL SYSTEMS, hereafter referred to as ME EQUIPMENT and ME SYSTEMS. This collateral standard specifies requirements for ALARM SYSTEMS and ALARM SIGNALS in ME EQUIPMENT and ME SYSTEMS. It also provides guidance for the application of ALARM SYSTEMS.…

1 Scope 1.1 These requirements apply to low-voltage AC power circuit breakers as follows: a) Stationary-mounted or drawout-mounted types, b) 2-pole, 3-pole, and 4-pole constructions, c) Manually operated or power operated, and d) With or without electromechanical or solid-state type trip device. 1.2 These requirements apply to drawout-mounted type low-voltage AC integrally fused power…

1 Scope This part of IEC 60079 contains the specific requirements for design, construction and assessment of intrinsically safe systems, Type of Protection “i”, intended for use, as a whole or in part, in locations in which the use of Group I, II or III Ex Equipment is required. NOTE 1 This standard is intended for use by the designer of the system e.g. a person who could be a manufacturer,…