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Hydraulic fluid power — Measurement techniques — Part 1: General measurement principles

60.60 Standard published

ISO/TC 131/SC 8

Hydraulic fluid power — Measurement techniques — Part 2: Measurement of average steady-state pressure in a closed conduit

60.60 Standard published

ISO/TC 131/SC 8

Hydraulic fluid power — Test code for determination of airborne noise levels — Part 1: Pumps

20.00 New project registered in TC/SC work programme

ISO/TC 131/SC 8

Hydraulic fluid power — Determination of pressure ripple levels generated in systems and components — Part 3: Method for motors

30.60 Close of voting/ comment period

ISO/TC 131/SC 8

Hydraulic fluid power — Determination of the fluid-borne noise characteristics of components and systems — Part 2: Measurement of the speed of sound in a fluid in a pipe

30.60 Close of voting/ comment period

ISO/TC 131/SC 8

Hydraulic fluid power — Determination of derived displacement of positive displacement pumps and motors — Part 1: Two-step Toet-method & Hydraulic fluid power

30.99 CD approved for registration as DIS

ISO/TC 131/SC 8

Hydraulic fluid power — Determination of derived displacement of positive displacement pumps and motors — Part 2: Zero-Pressure-Intercept-Method

30.99 CD approved for registration as DIS

ISO/TC 131/SC 8

Hydraulic fluid power — Determination of pressure ripple levels generated in systems and components — Part 1: Method for determining source flow ripple and source impedance of pumps

00.00 Proposal for new project received

ISO/TC 131/SC 8

Hydraulic fluid power — Fatigue pressure testing of metal pressure-containing envelopes — Part 2: Rating methods

90.93 Standard confirmed

ISO/TC 131/SC 8

Hydraulic fluid power — Methods to assess the reliability of hydraulic components — Part 1: General procedures and calculation method

90.93 Standard confirmed

ISO/TC 131/SC 8