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DIN 16003
Mechanical pressure and temperature gauges - Differential pressure gauges - Dimensions, metrology, requirements and testing
Edition
2018-04
DIN EN 50725 ; VDE 0400-91:2025-12
Specification for portable electrical apparatus designed to measure draught and gas pressure of heating appliances and systems; German version EN 50725:2025
Edition
2025-12
DIN EN ISO 7231
Polymeric materials, cellular, flexible - Determination of air flow value at constant pressure-drop (ISO 7231:2023); German version EN ISO 7231:2023
Edition
2023-11
ISO 4548-3
Methods of test for full-flow lubricating oil filters for internal combustion engines - Part 3: Resistance to high differential pressure and to elevated temperature
Edition
1997-09
ISO 7231
Polymeric materials, cellular, flexible - Determination of air flow value at constant pressure-drop
Edition
2023-08
ISO 12614-14
Road vehicles - Liquefied natural gas (LNG) fuel system components - Part 14: Differential pressure fuel content gauge
Edition
2021-06
OENORM EN ISO 7231
Polymeric materials, cellular, flexible - Determination of air flow value at constant pressure-drop (ISO 7231:2023)
Edition
2023-11-15
SN EN ISO 7231
Polymeric materials, cellular, flexible - Determination of air flow value at constant pressure-drop (ISO 7231:2023)
Edition
2023-09
SN EN 50725
Specification for portable electrical apparatus designed to measure draught and gas pressure of heating appliances and systems
Edition
2025-02
NF C23-725 ; NF EN 50725:2025-02-28
Specification for portable electrical apparatus designed to measure draught and gas pressure of heating appliances and systems
Edition
2025-02-28
