ISO 4404-1-2012 pdf free.Petroleum and related products – Determination of the corrosion resistance of fire-resistant hydraulic fluids – Part 1: Water-containing fluids.
This part of ISO 4404 specifies a test method to determine the influence on metals of fire-resistant fluids in categories HFA, HFB and HFC, as classified in ISO 6743-4. It evaluates the corrosion protection provided by these fluids towards metal components used in hydraulic systems and installations.
A similar technique for fluids in category HFD is described in ISO 4404-2.
2 Normative references
The tollowing referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 648: 2008, Laboratory glassware — Single-volume pipettes
ISO 3696: 1987. Water for analytical laboratory use — Specification and test methods
ISO 3819: 1985, Laboratory glassware — Beakers
ISO 5598: 2008, Fluid power systems and components — Vocabulary
ISO 6344.1: 1998. Coated abrasives — Grain size analysis — Part 1: Grain size distribution test
ISO 20783-1: 2011. Petroleum and related products — Determination of emulsion stability of fire-resistant fluids — Part 1: Fluids in category HFAE
DIN 12331: 1988, Laboratory glassware; beakers
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 5598:2008 apply.
4 Principle
Test strips of appropriate metals, both singly and in pairs, are partially submerged in the test fluid at a specific temperature and for a specific period. The change in mass of each test strip, its surface appearance and the change in the appearance of the fluid during the test are determined.
NOTE 1 When assessing the corrosivity of HFAE and HFAS fluids, it may be necessary to dilute an additive concentrate with water and the quality of the water can significantly affect the test results. The diluent, therefore, needs to be chosen carefully and, preferably, to be representative of commercial use. The seleclion could be one of the test waters listed in Annex A, deionized water or mains water as agreed between the user and the fluid supplier.
NOTE 2 The selection of the metals for corrosion testing may depend on the application and on the type of fluid being tested. For example, aluminium may not be used in mining applications while contact between HFC fluids and zinc shall be minimized as far as possible.
5 Reagents and materials
5.1 Acetone, analytical grade.
5.2 Heptane, analytical grade.
5.3 Water, selected from one of the following:
a) a test water of composition specified in Annex A,
b) deionized water conforming to grade 3 of ISO 3696:1987, or
c) the supply water to be used commercially.
5.4 Metal salts (listed in Table A. 1), analytical grade.
6 Apparatus
6.1 Glass beakers. of capacity 400 ml, height approximately 135 mm, without a spout. conforming to ISO 3819:1985 (see Figure 1). A maximum often is required for each test fluid.
6.2 Glass beaker, type H 1000. conforming to DIN 12331:1988 (of capacity 1 000 ml).ISO 4404-1 pdf download.
Tags: Petroleum and related products
-
ISO 8600-1-2013 pdf free download.Endoscopes – Medical endoscopes and endotherapy devices – Part 1: General requirements. 6 Marking 6.1 Minimum marking Iach individual endoscope or endotherapy device shall have the lollowing minimum marking: a) model number and/or other mark sufficient to identify the endoscope or endotherapy device and its manufacturer; b) maximum insertion portion width, minimum instrument channel width, working length, field of view and/or direction of view where such identification is necessary for the intended use of the endoscope or endotherapy device. The Insertion portion width and instrument channel width units shall be in millimetres. The insertion portion width and instrument channel width can also be marked in French size as defined in 3.5, shown by either ‘Fr or an encircled number; c) wherever reasonable and practicable. the endoscope or endotherapy device and detachable component(s) shall be identified in terms of lot numbers or serial numbers, etc. 6.2 Marking legibility The marking shall remain legible over the lifetime of the device when the endoscope or endotherapy device is used, cleaned, disinlected, sterilized and stored in accordance with the instruction manual. 6.3 Marking exceptions When marking on the endoscope or endotherapy device or detachable component(s) is impossible to achieve due…
-
ISO 15688-2012 pdf free download.Road construction and maintenance equipment – Soil stabilizers 一 Terminology and commercial specifications. This International Standard establishes the terminology, definitions of operation and commercial specifications for soil stabilizers and their components intended for use in road construction and pavement works. It does not apply to soil stabilizers used in agricultural applications. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.. ISO 3911, Wheels and rims for pneumatic tyres — Vocabulary, designation and marking ISO 6746-1, Earth-moving machinery — Definitions of dimensions and codes — Part 1: Base machine ISO 6746-2, Earth-moving machinery — Definitions of dimensions and codes — Part 2: Equipment and attachments ISO 7134. Earth-moving machinery — Graders — Terminology and commercial specifications 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 soil stabilizer self-propelled machine, either towed or transported, with the function of pulverizing, breaking-up, aerating, homogenizing, and loosening existing and imported soil or paving materials and mixing them…
-
ISO 18436-1-2012 pdf free.Condition monitoring and diagnostics of machines – Requirements for qualification and assessment of personnel一 Part 1: Requirements for assessment bodies and the assessment process. 5 Requirements for assessment body personnel 5.1 General provisions In order to ensure that the assessment process is carried out effectively and uniformly, the competence requirements for personnel involved in the entire process shall be defined by the assessment body and, in the case of a third party, be approved by the responsible TCC (in accordance with ISO/IEC 17024). The assessment body shall require its personnel (internal or external) to sign a contract, or other document, by which they commit themselves to comply with the rules defined by the assessment body, including those relating to confidentiality and those relating to independence from commercial and other interests, and from any prior or present link with the persons to be examined that would, in the opinion of the interested parties, compromise impartiality. Clearly documented instructions shall be available to the personnel, describing their duties and responsibilities. These instructions shall be maintained up to date. All personnel involved in any aspect of assessment activities shall possess appropriate educational qualifications, experience and technical expertise, which satisfy defined…