ISO 16908:2014 PDF

Name: ISO 16908:2014 — Hydraulic filter element test methods — Thermal conditioning and cold start-up simulation
SKU: ISO 16908:2014
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Hydraulic filter element test methods — Thermal conditioning and cold start-up simulation

Название (английский):

ISO 16908:2014

Hydraulic filter element test methods — Thermal conditioning and cold start-up simulation

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 13
Дата публикации:: 5 сентября 2014 г.
Издание:: ISO IS 16908 edition 1 version 1
ICS:: 23.100.60

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Описание (английский):

ISO 16908:2014 specifies a test procedure to thermally condition a hydraulic filter element and simulate cold start, such as that which can be encountered in mobile machinery applications. It is intended to provide a procedure that yields reproducible results and can be used prior to other filter element performance tests, such as those specified in ISO 11170.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 16908:2014 - Hydraulic filter element test methods - Thermal conditioning and cold start-up simulation - specifies a standardized procedure to thermally condition hydraulic filter elements and to simulate cold start conditions encountered in mobile machinery. The standard defines how to precondition and stress a filter element so that subsequent performance tests (for example, ISO 11170 multi-pass or collapse tests) produce reproducible, comparable results. ISO 16908:2014 is aimed at ensuring filter elements maintain filtration performance and structural integrity after exposure to thermal extremes and cold-start stresses.

Key topics and technical requirements

Scope and purpose: Thermal conditioning (hot soak and cold soak) and cold start-up simulation to reproduce field-relevant thermal/differential pressure stresses.

Pre-test checks: Visual inspection and a fabrication integrity (bubble-point) test per ISO 2942; reject damaged elements.

Test fluids: Soak and cold-start fluids must be compatible with element materials; an alternative higher-viscosity cold test fluid may be used if compatible.

Equipment and sensors:

Environmental chamber with precise thermal control.
Differential pressure transducer placed close to housing (see ISO 3968).
Temperature probe located upstream in the fluid volume, not touching the element.

Accuracy and tolerances: Instrument accuracies and test-condition tolerances are specified (e.g., temperature sensor resolution 0.1 °C; permitted temperature variation ±5 °C; flow and pressure accuracies specified in the standard).

Cold start procedure highlights:

Disable housing bypass valves (unless integral to the element) or use alternative housing.
Precondition circuit, flush to required contamination cleanliness (sample min. 250 ml).
Ensure fluid cleanliness of ISO 4406 code 15/12/10 or cleaner before testing.
Control pump to achieve a specified differential-pressure waveform (e.g., reach maximum Δp within 2–4 s).

Reporting and pass/fail: The standard defines data reporting requirements and pass/fail criteria to determine whether an element retains integrity and performance after the test.

Applications and who uses it

Hydraulic filter manufacturers - validate element robustness against cold starts and thermal cycling.

Test laboratories and OEM test engineers - perform standardized preconditioning before performance qualification (ISO 11170, collapse, multi-pass).

Purchasers and quality assurance teams - specify and verify that supplied elements meet field-relevant thermal and cold-start demands, especially for mobile machinery (construction, agriculture, mining).

Design engineers - assess filter selection for systems exposed to low-temperature starts and high-viscosity fluid conditions.

Related standards (select)

ISO 11170 (filter element performance testing)

ISO 2942 (fabrication integrity / first bubble point)

ISO 2943 (material compatibility / soak tests)

ISO 3968, ISO 4021, ISO 4406, ISO 11500, ISO 5598

Keywords: ISO 16908:2014, hydraulic filter element, thermal conditioning, cold start-up simulation, cold start test, filter testing, mobile machinery, differential pressure, contamination control.

ISO 16908:2014 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and who uses it

Related standards (select)

Технические детали

ISO 11170:2013

Hydraulic fluid power — Sequence of tests for verifying performance characteristics of filter elements

BS EN ISO 294-2:2018

Plastics. Injection moulding of test specimens of thermoplastic materials. Small tensile bars.

BS ISO 3968:2017

Hydraulic fluid power. Filters. Evaluation of differential pressure versus flow.

BS ISO 4406:2021

Hydraulic fluid power. Fluids. Method for coding the level of contamination by solid particles.

SIST EN ISO 294-3:2020

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SIST ISO 4021:1997

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ISO 11500:2022/Amd 1:2026

Hydraulic fluid power — Determination of the particulate contamination level of a liquid sample by automatic…

ISO 5598:1985

Fluid power systems and components — Vocabulary