ISO 22995:2019 石油製品—曇り点の決定—自動化された段階的冷却方法 | ページ 2

Foreword

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This document was prepared by the European Committee for Standardization (CEN) Technical Committee CEN/TC 19, Gaseous and liquid fuels, lubricants and related products of petroleum, synthetic and biological origin, in collaboration with ISO Technical Committee TC 28, Petroleum and related products, fuels and lubricants from natural or synthetic sources, in accordance with the agreement on technical cooperation between ISO and CEN (Vienna Agreement).

Introduction

This document describes an automated method for the determination of the cloud point, based on the manual determination technique described in ISO 3015^[2]. In parallel with the revision of the manual method, the scope has been extended to new fuels.

1 Scope

This document specifies a method to determine cloud point using a step-wise cooling technique that is executed by means of automated equipment types with optical detection mode.

The method is applicable to distillate fuels, fatty-acid methyl esters (FAME) and paraffinic diesel fuels, including blends thereof, as well as those containing flow-improvers or other additives, intended for use in diesel engines and domestic heating installations.

The method can be applied to other products such as vegetable oils or lubricants, but these kinds of products have not been evaluated during the interlaboratory study (ILS), no precision data are available.

2 Normative references

The following documents are referred to in the text in such a way that some or all of their content constitutes requirements 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 following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

Bibliography