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Věstník 9/2025
prEN 878 Chemicals used for treatment water intended for
human consumption Aluminium sulfate
CEN/TC 164 2025-10-16
prEN 882 Chemicals used for treatment water intended for
human consumption Sodium aluminate
CEN/TC 164 2025-10-16
prEN 887 Chemicals used for treatment water intended for
human consumption Aluminium iron (III) sulfate
CEN/TC 164 2025-10-16
prEN 890 Chemicals used for treatment water intended for
human consumption Iron (III) sulfate solution
CEN/TC 164 2025-10-16
prEN 888 Chemicals used for treatment water intended for
human consumption Iron (III) chloride
CEN/TC 164 2025-10-16
prEN 889 Chemicals used for treatment water intended for
human consumption Iron (II) sulfate
CEN/TC 164 2025-10-16
prEN 891 Chemicals used for treatment water intended for
human consumption Iron (III) chloride sulfate
CEN/TC 164 2025-10-16
prEN 14664 Chemicals used for treatment water intended for
human consumption Iron (III) sulfate, solid
CEN/TC 164 2025-10-16
EN 752:2017/prA1 Drain and sewer systems outside buildings Sewer
system management
CEN/TC 165 2025-10-02
prEN 1520 Precast lightweight concrete products with open
structure
CEN/TC 177 2025-10-16
prEN 12602 Precast autoclaved aerated concrete products CEN/TC 177 2025-10-16
prEN 378-5 Refrigerating systems and heat pumps Safety and
environmental requirements Part Safety classification
and information about refrigerants
CEN/TC 182 2025-09-25
prEN 378-1 Refrigerating systems and heat pumps Safety and
environmental requirements Part Basic requirements,
definitions, classification and selection criteria
CEN/TC 182 2025-09-25
prEN 378-3 Refrigerating systems and heat pumps Safety and
environmental requirements Part Installation site and
personal protection
CEN/TC 182 2025-09-25
prEN 378-2 Refrigerating systems and heat pumps Safety
and environmental requirements Part Design,
construction, testing, marking and documentation
CEN/TC 182 2025-09-25
prEN ISO 3169 Fine ceramics (advanced ceramics, advanced technical
ceramics) Methods for chemical analysis impurities
in aluminium oxide powders using inductively coupled
plasma-optical emission spectrometry (ISO 3169:2023)
CEN/TC 184 2025-10-23
prEN ISO 14627 Fine ceramics (advanced ceramics, advanced technical
ceramics) Test method for fracture resistance of
silicon nitride materials for rolling bearing balls room
temperature indentation fracture (IF) method
(ISO 14627:2012)
CEN/TC 184 2025-10-23
prEN ISO 17162 Fine ceramics (advanced ceramics, advanced technical
ceramics) Mechanical properties monolithic ceramics
at room temperature Determination compressive
strength (ISO 17162:2014)
CEN/TC 184 2025-10-23
prEN ISO 10642 Fasteners Hexagon socket countersunk head screws
with reduced loadability (ISO/DIS 10642:2025)
CEN/TC 185 2025-10-10
prEN ISO 3506-7 Fasteners Mechanical properties corrosion-resistant
stainless steel fasteners Part Flat washers with
specified grades and property classes (ISO 3506-7:2024)
CEN/TC 185 2025-10-23
prEN 1370 Founding Examination surface condition CEN/TC 190 2025-10-16
prEN 1564 Founding Ausferritic spheroidal graphite cast irons CEN/TC 190 2025-10-02
prEN 12681-1 Founding Radiographic testing Part Film techniques CEN/TC 190 2025-10-16
