Thermoplastics piping systems for underground non-pressure applications — Test method for leaktightn...
This document specifies a test method for determining the leak tightness of elastomeric sealing ring type joints for buried thermoplastics non-pressure piping systems.
Unless otherwise specified in the referring standard, the tests are carried out at the following basic test pressures:
— p1: internal negative air pressure (partial vacuum);
— p2: a low internal hydrostatic…
Energy management system application program interface (EMS-API) - Part 302: Common information mode...
IEC 61970-302:2018 specifies a Dynamics package which contains extensions to the CIM to support the exchange of models between software applications that perform analysis of the steady-state stability (small-signal stability) or transient stability of a power system as defined by IEEE/CIGRE Definition and classification of power system stability IEEE/CIGRE joint task force on stability terms and…
1 Scope
This standard applies to two grades of kerosene-type aviation turbine fuel (grades JET A and JET A-1), consisting
of conventional hydrocarbons, synthetic hydrocarbons, naturally occurring non-hydrocarbons and additives as
specified herein.
The fuels are normally used in civil aviation operations. The two grades differ only in freezing point. Grade JET A
has a maximum freezing point…
Aviation turbine fuel (Military grades F-34, F-37 and F-44)
1 Scope
This standard applies to three grades of aviation turbine fuel (military grades F-34, F-37 as its equivalent, and
F-44) consisting of conventional hydrocarbons, synthetic hydrocarbons, naturally occurring non-hydrocarbons and
additives as specified herein.
Grade F-34 is a kerosene-type aviation turbine fuel, and grade F-44 is a high-flash kerosene-type aviation turbine
fuel. Kerosene…
Low-voltage switchgear and controlgear — Part 7-4: Ancillary equipment — PCB terminal blocks for cop...
1.1 Scope
This part of IEC 60947 specifies requirements for PCB terminal blocks primarily intended for industrial or
similar use.
Mounting and fixing on the printed circuit board is made by soldering, press-in or equivalent methods to
provide electrical and mechanical connection between copper conductors and the printed circuit board.
This standard applies to PCB terminal blocks intended to…
1 Scope
1.1
This Standard applies to electrical power equipment that is generating or distributing power, and that is intended for temporary use in a portable manner. Portability can be achieved by including lifting handles, being mounted on skids, being mounted on wheels, etc.
Note: “Mounted on wheels” can include wheeled mounted equipment that can be moved by one person, up to large truck-…
Electricity metering - Payment systems - Part 41: Standard transfer specification (STS) - Applicatio...
IEC 62055-41:2018 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 62055-41:2018 specifies the application layer protocol of the standard transfer specification (STS) used for…
Safety of machinery - Application of protective equipment to detect the presence of persons
IEC 62046:2018 specifies requirements for the selection, positioning, configuration and commissioning of protective equipment to detect the momentary or continued presence of persons in order to protect those persons from dangerous part(s) of machinery in industrial applications. This standard covers the application of electro-sensitive protective equipment (ESPE) specified in IEC 61496 (all…
Plastics piping systems for the trenchless replacement of underground pipeline networks — Part 1: Re...
ISO 21225-1:2018 specifies requirements and test methods for pipes and fittings which are part of plastics piping systems for the trenchless replacement of underground non-pressure and pressure drainage and sewerage networks and underground water and gas supply networks, by means of pipe bursting and pipe extraction.
ISO 21225-1:2018 is applicable to polyethylene (PE) pipes and fittings, as…
Plastics piping systems for the trenchless replacement of underground pipeline networks — Part 2: Re...
ISO 21225-2:2018 specifies requirements and test methods for pipes and fittings which are part of plastics piping systems for the trenchless replacement of various underground pipeline networks, underground non-pressure and pressure drainage and sewerage networks and underground water and gas supply networks, by means of horizontal directional drilling and impact moling.
ISO 21225-2:2018 is…
