ISO 4404-2:2010 PDF

Name: ISO 4404-2:2010 — Petroleum and related products — Determination of the corrosion resistance of fire-resistant hydraulic fluids — Part 2: Non-aqueous fluids
SKU: ISO 4404-2:2010
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Petroleum and related products — Determination of the corrosion resistance of fire-resistant hydraulic fluids — Part 2: Non-aqueous fluids

Название (английский):

ISO 4404-2:2010

Petroleum and related products — Determination of the corrosion resistance of fire-resistant hydraulic fluids — Part 2: Non-aqueous fluids

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 7
Дата публикации:: 29 ноября 2010 г.
Издание:: ISO IS 4404 edition 2 version 1
ICS:: 75.120

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Описание (английский):

ISO 4404-2:2010 specifies a procedure for the determination of the corrosion-inhibiting properties of non-aqueous hydraulic fluids within the category HFD, as classified in ISO 6743‑4. It provides a qualitative assessment of corrosion of five of the most common metals used in the construction of hydraulic systems, but other metals and/or alloys could be added or substituted for these metals for particular installations.

Abstract

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Стандарты, упомянутые в описании

Overview

ISO 4404-2:2010 - "Petroleum and related products - Determination of the corrosion resistance of fire-resistant hydraulic fluids - Part 2: Non‑aqueous fluids" - specifies a laboratory test procedure to assess the corrosion resistance and corrosion‑inhibiting properties of non‑aqueous, fire‑resistant hydraulic fluids (category HFD per ISO 6743‑4). The standard gives a reproducible qualitative and semi‑quantitative method for evaluating fluid compatibility with common hydraulic system metals.

Key topics and technical requirements

Scope: Tests non‑aqueous fire‑resistant hydraulic fluids (HFD family). Water‑based fluids are covered in ISO 4404‑1.

Test pieces: Standard metal specimens - steel, copper (electrolytic), brass, zinc, aluminium (dimensions and compositions specified). Other metals/alloys may be substituted for specific installations.

Preparation: Polishing sequence using silicon‑carbide abrasives, solvent cleaning (heptane, toluene), and controlled handling to avoid cross‑contamination.

Test conditions:

Immersion of single and paired metal strips in (250 ±10) ml fluid per beaker.
Temperature: (35 ±1) °C in a thermostatic bath/oven.
Duration: (672 ±2) hours (28 days).

Measurements and observations:

Mass change recorded to nearest 0.5 mg (balance precision 0.2 mg).
Visual classification scales for test‑piece corrosion (0–5) and test‑fluid condition (0–5).
Paired tests examine galvanic or mutual effects (steel/zinc, copper/zinc, aluminium/zinc, steel/aluminium).

Apparatus/consumables: Borosilicate beakers, watch‑glasses with closures, glass hooks, nylon spacers/bolts, abrasive cloths, heptane and toluene.

Reporting: Full test report including product ID, mass changes, corrosion classifications, any deviations, and date.

Note: ISO 4404‑2 includes a safety warning - use involves hazardous materials and appropriate safety controls are required.

Applications and users

Product development and formulation screening of fire‑resistant hydraulic fluids.

Quality control and batch verification by fluid manufacturers and independent test laboratories.

Hydraulic system designers, specifiers, and maintenance engineers assessing material compatibility and corrosion risk in industrial and mobile hydraulic systems.

Procurement and compliance checks where corrosion resistance of HFD fluids is a selection criterion.

Keywords: ISO 4404‑2, corrosion resistance test, fire‑resistant hydraulic fluids, HFD fluids, hydraulic system compatibility, non‑aqueous fluids.

ISO 4404-2:2010 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and users

Related standards

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