Plastics — Polyoxymethylene (POM) moulding and extrusion materials — Part 1: Designation system and ...
ISO 29988-1:2018 establishes a system of designation for polyoxymethylene (POM) thermoplastic materials, which can be used as the basis for specifications.
The types of polyoxymethylene (POM) materials are differentiated from each other by a classification system based on appropriate levels of the following designatory properties:
a) melt mass-flow rate or melt volume-flow rate;
b) tensile…
Safety and control devices for gas and/or oil burners and appliances — General requirements
ISO 23550:2018 specifies safety, construction, performance and testing requirements for controls for gas burners and gas burning appliances for use with natural gas, manufactured gas or liquefied petroleum gas (LPG).
ISO 23550:2018 applies to controls for use at maximum operating pressures up to and including 500 kPa. This document provides the general requirements that are intended to be the…
Information technology - Small Computer System Interface (SCSI) - Part 454: SCSI Primary Commands - ...
ISO/IEC 14776-454:2018(E) provides for many different types of SCSI devices and specifies the interfaces, functions and operations necessary to ensure interoperability between conforming SCSI implementations. This standard defines the SCSI commands that are mandatory and optional for all SCSI devices.
Reference conditions and procedures for testing industrial and process measurement transmitters - Pa...
IEC 62828-3:2018 establishes specific procedures for testing temperature transmitters used in measuring and control systems for industrial process and for machinery control systems.
When the process measurement transmitter features the temperature transmitter separated from the sensing element, the standard applies only to the temperature transmitter without the sensing element. In the case of a…
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-…
