ISO 4548-9:2008 内燃機関用のフルフロー潤滑油フィルターの試験方法—パート9：入口および出口のアンチドレンバルブ試験 | ページ 2

Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, 2.

The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.

ISO 4548-9 was prepared by Technical Committee ISO/TC 70, Internal combustion engines, Subcommittee SC 7, Tests for lubricating oil filters.

This second edition cancels and replaces the first edition (ISO 4548-9:1995), of which it constitutes a minor revision.

ISO 4548 consists of the following parts, under the general title Methods of test for full-flow lubricating oil filters for internal combustion engines:

• Part 1: Differential pressure/flow characteristics
• Part 2: Element by-pass valve characteristics
• Part 3: Resistance to high differential pressure and to elevated temperature
• Part 4: Initial particle retention efficiency, life and cumulative efficiency (gravimetric method)
• Part 5: Cold start simulation and hydraulic pulse durability test
• Part 6: Static burst pressure test
• Part 7: Vibration fatigue test
• Part 9: Inlet and outlet anti-drain valve tests
• Part 11: Self-cleaning filters
• Part 12: Filtration efficiency using particle counting, and contaminant retention capacity

Introduction

The ISO 4548 series establishes standard test procedures for measuring and performance of full-flow lubricating oil filters for internal combustion engines. It has been prepared in separate parts, each part relating to a particular performance characteristic.

Together the tests provide the information necessary to assess the characteristics of a filter, but if agreed between the purchaser and the manufacturer, the tests can be conducted separately.

1 Scope

This part of ISO 4548 specifies methods of measuring the effectiveness of either inlet or outlet anti-drain valves if fitted to a full-flow lubricating oil filter of the “spin-on” or “easy change” type, for internal combustion engines.

2 Normative references

The following 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.

3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 4548-1 apply.

Bibliography