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IEC TR 61340-1:2012+A1:2020 describes the fundamental principles of electrostatic phenomena including charge generation, retention and dissipation and electrostatic discharges. Methods for measuring electrostatic phenomena and related properties of materials are described in a general way. Hazards and problems associated with electrostatic phenomena and principles of their control are outlined.…

This document specifies requirements for six types of wire-braid-reinforced hoses and hose assemblies of nominal size from 5 to 51. This document also specifies the hose of nominal size 63 for types 2SN and R2AT, and the hose of nominal size 76 for type 2SN. They are suitable for use with: — oil-based hydraulic fluids HH, HL, HM, HR and HV as defined in ISO 6743‑4 at temperatures ranging from…

This standard specifies interchange and arithmetic formats and methods for binary and decimal floating-point arithmetic in computer programming environments. This standard specifies exception conditions and their default handling. An implementation of a floating-point system conforming to this standard may be realized entirely in software, entirely in hardware, or in any combination of software…

IEC 60335-2-82:2017+A1:2020 deals with the safety of electric commercial amusement machines and personal service machines, their rated voltage being not more than 250 V for single-phase appliances and 480 V for other appliances. Examples of appliances that are within the scope of this standard are: - amusement machines; - tables; - bowling machines; - dartboards; - driving simulators; -…

1.1 General This Standard specifies mapping requirements for the recording and depiction of underground utility infrastructure and related appurtenances at or below grade. This Standard does not apply to utility infrastructure that is normally above grade (e.g., overhead wires, pole-mounted transformers, antennas, and dishes). 1.2 Application This Standard applies to proposed, existing,…

1.1 This Standard describes the design, construction, load rating, installation, erection, inspection, maintenance, repair, modification, test, and operation of lattice and telescopic boom mobile cranes. Note: See Annex A for illustrations of mobile cranes and Annex B for illustrations of parts of a mobile crane. 1.2 This Standard applies only to machines that have all of the following…

1.1 Compressor types This Standard applies to compressor seal vent gas from reciprocating compressor rod packings and centrifugal compressor seals, including any auxiliary and support systems that are required for proper operation of the packing or sealing system. The procedures considered in this Standard include compressor seal vent gas system tracing and alternate flow path identification,…

1.1 This Standard covers anti-siphon fill valves intended to be installed in water closet tanks. Note: In this Standard, anti-siphon fill valves are also referred to as “devices”. 1.2 In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; “should” is used to express a recommendation or that…

1.1 Inclusions This Standard is intended to be used with an industrial or commercial clean-water pumping system with the following characteristics: a) any application of electrically driven single- and multi-stage rotodynamic pumps; b) pumping systemc) all liquids with viscosity up to 25 cSt, provided that ANSI/HI 9.6.7 is used to correct the performance to 1 cSt. 1.2 Exclusions This…

1.1 This Standard specifies the methods for determining the uniform energy factor for electric storage tank water heaters and heat pump water heaters. 1.2 This Standard a) establishes minimum energy efficiency levels for electric storage tank water heaters and heat pump water heaters; and b) includes advanced test methods for cold climate ratings (see Annex B). 1.3 This Standard applies…