This document describes three methods for the exposure of plastics in a marine environment. Method A covers exposures where specimens float on the surface, method B covers exposures where specimens are partially immersed method C covers exposures where specimens are completely immersed. Although intended for marine (salt water) exposure, the methodology can be used with outdoor brackish water and…
Vacuum technology — Standard methods for measuring vacuum-pump performance — Part 4: Turbomolecular ...
This document, in conjunction with ISO 21360-1, specifies methods for the measurement of performance characteristics of turbomolecular vacuum pumps. It is applicable to all sizes and all types of turbomolecular vacuum pumps, including those
— with mechanical or magnetic bearings;
— with or without an additional drag stage(s) or other pumping stages on the shaft;
— with…
Guidance on the selection of the appropriate means of ventilation based on the intended patient, use...
This document considers and identifies criteria about the intended patient, intended use environment, and intended operator across the spectrum of the types of ventilation-related equipment as listed below:
— gas-powered resuscitator as specified in ISO 10651-5[1] [1];
— operator-powered resuscitator as specified in ISO 10651-4[2];
— ventilator for critical care as…
Guidance on the selection of the appropriate means of ventilation based on the intended patient, use...
ISO TR 21954:2018 This document considers and identifies criteria about the intended patient, intended use environment, and intended operator across the spectrum of the types of ventilation-related equipment as listed below:
— gas-powered resuscitator as specified in ISO 10651-5[1] [1];
— operator-powered resuscitator as specified in ISO 10651-4[2];
— ventilator for critical care as specified…
Conducting and dissipative rubbers, vulcanized or thermoplastic — Measurement of resistivity
This document specifies the requirements for the laboratory testing of the volume resistivity of specially prepared test pieces of vulcanized or thermoplastic rubber compounds rendered conducting or dissipative by the inclusion of carbon black or ionizable materials. The tests are suitable for materials with a resistivity of less than about 108 Ω⋅m.
Method 1 is the preferred method when test…
Fine ceramics (advanced ceramics, advanced technical ceramics) — Test method for fracture toughness ...
This document describes a test method for the determination of the fracture toughness of monolithic ceramic thin plates at room temperature by the single-edge precracked plate method or the single-edge V-notch plate method.
This document is intended for use with monolithic ceramics and whisker- or particulate-reinforced ceramics which are regarded as macroscopically homogeneous. It does not…
Instrument transformers - Part 15: Additional requirements for voltage transformers for DC applicati...
IEC 61869-15:2018 provides all requirements specific to voltage transformers to be used in DC applications (DCVTs), whatever the technology used. The output signal can be analogue or digital.
It is applicable to newly manufactured voltage transformers used for measuring, protection and/or control applications in DC power systems with a rated voltage above 1,5 kV.
This document covers passive…
Cable networks for television signals, sound signals and interactive services - Part 113: Optical sy...
IEC 60728-113:2018 is applicable to optical transmission systems for broadcast signal transmission that consist of headend equipment, optical transmission lines, in-house wirings and system outlets. These systems are primarily intended for television and sound signals using digital transmission technology. This document specifies the basic system parameters and methods of measurement for optical…
Cable networks for television signals, sound signals and interactive services - Part 113: Optical sy...
IEC 60728-113:2018 is applicable to optical transmission systems for broadcast signal transmission that consist of headend equipment, optical transmission lines, in-house wirings and system outlets. These systems are primarily intended for television and sound signals using digital transmission technology. This document specifies the basic system parameters and methods of measurement for optical…
Medical electrical equipment - Part 2-54: Particular requirements for the basic safety and essential...
IEC 60601-2-54:2009+A1:2015+A2:2018 applies to the basic safety and essential performance of medical electrical equipment and medical electrical systems intended to be used for projection radiography and radioscopy. The minimum safety requirements specified in this particular standard are considered to provide for a practical degree of safety in the operation of ME equipment for radiography and…
