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13.2 Curve conditions
The guidelines below apply to the curves on the next pages:
• Test liquid: Airless water.
• The curves apply to a density of ρ = 983.2 kg/m
3
and a liquid
temperature of +60 °C.
• All curves show average values and should not be used as guarantee
curves. If a specific minimum performance is required, individual
measurements must be made.
• The curves for speeds I, II and III are marked.
• The curves apply to a kinematic viscosity of υ = 0.474 mm
2
/s
(0.474 cSt).
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