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This European Standard specifies the characteristics and the requirements for sulfamic acids and salts. Similar to antiscalants as phosphonic acids and its salts (EN 15040) and polycarboxylates and its salts (EN 15039), sulfamic acid and its salts can be used alone or in combination with others drinking water substances as antifoulants (antiscalant effect) for membranes for the treatment of water intended for human consumption. Sulfamic acid and salts are used in mixtures with sodium hydroxide and sodium hypochlorite or other drinking water chlorine based oxidizing agents as biofilm remover especially for reverse osmosis (RO) and nanofiltration membranes to prevent biofouling by microbiological contamination. The components will not pass the membrane and are rejected to the wastewater with the concentrate. For the other components EN standards are already exist.
This document specifies technical delivery conditions for flat and long products of hot rolled weldable fine grain structural steels in the thermomechanical rolled condition in the grades and qualities given in Tables 1 to 3 (chemical composition) and Tables 4 to 6 (mechanical properties) in thickness ≤ 150 mm. The steels specified in this document are especially intended for use in heavily loaded parts of welded structures such as, bridges, flood gates, storage tanks, water supply tanks, etc., for service at ambient and low temperatures.
Due to an error this was republished 27.04.2022.
This test method is designed to take account of conditions in use, when the window or door is installed in accordance with the manufacturer's specification and the requirements of relevant International StandardS and codes of practice.
This International Standard does not apply to joints between the window or door frame and the building construction.
This International Standard is not intended to evaluate the strength of the glass.
This International Standard does not apply to the joints between the window or door frame and the building construction.
This International Standard specifies the method to be used to determine the damage caused by striking with a soft and heavy body, the face of a closed door leaf fixed in its own door frame as part of a doorset.
NOTE Such forces that might reasonably be expected from impacts by human bodies and substantial objects with similar characteristics should neither damage, nor impair the normal performance of, a door.
The method may also be used in respect of a door leaf submitted for test in a frame which the manufacturer considers appropriate to and typical for the intended utilization.
This International Standard specifies the method to be used to determine the permanent deformation caused when a vertical load is applied to an open door leaf fixed in its own door frame as part of a doorset.
NOTE Such downward forces that might reasonably be expected, such as a child swinging on the handle, should neither damage, nor impair the performance of, a door.
The method may also be used in respect of a door leaf submitted for test in a frame which the manufacturer considers appropriate to and typical for the intended utilization.
This document is one part of a series of Technical Specifications that provide information on factors related to human anthropometry, physiology, ergonomics and performance for the preparation of standards for design, testing and use of respiratory protective devices. This document contains information related to thermal effects of respiratory protective devices on the human body. In particular information is given for:
— temperatures of surfaces associated with discomfort sensation and harmful effects on human tissues;
— thermal effects of breathing gas temperatures on lung airways and tissues;
— effects of breathing gas temperature and humidity on respiratory heat exchange;
— effects of respiratory protective devices on overall body heat exchange.
The information represents data for adult healthy men and women in the age 20 years to 60 years.
This document contains information related to the interaction between respiratory protective devices and the human body functions of hearing and speech.