National foreword

This revision of Part B7 of BS 3483 has been prepared under the direction of the Pigments, Paints and Varnishes Standards Committee. It is identical with ISO 787-5 “General methods of test for pigments and extenders —Part 5: Determination of oil absorption value” published in 1980 by the International Organization for Standardization (ISO). This Part of BS 3483 supersedes BS 3483‑B7:1974 which is withdrawn.

In 1995 the European Committee for Standardization (CEN) accepted ISO 787-5:1980 as European Standard EN ISO 787-5:1995. As a consequence of implementing the European Standard this British Standard is renumbered as BS EN ISO 787-5.

Terminology and conventions. The text of the International Standard has been approved as suitable for publication as a British Standard without deviation. Some terminology and certain conventions are not identical with those used in British Standards; attention is especially drawn to the following.

The comma has been used as a decimal marker. In British Standards it is current practice to use a full point on the baseline as the decimal marker.

Wherever the words “This part of ISO 787” and “International Standard” appear, referring to this standard, they should be read as “This Part of BS 3483” and “British Standard” respectively.

Cross-references

The Technical Committee has reviewed the provisions of ISO 150 and ISO/R 385, to which references are made in the text, and has decided that they are acceptable for use in conjunction with this standard.

Related British Standards for ISO 150:1980 are BS 242, BS 243, BS 259, BS 632:1969 “Linseed oil”. A related British Standard for ISO/R 385 was BS 846:1962.

Additional information. In clause 7 of ISO 787-5:1980 it is stated that duplicate determinations are to be carried out, but no indication is given of the acceptable difference between the two results. In implementing this standard in the United Kingdom, it is recommended that the result of the test [clause 9 c)] should be reported as the mean of the two determinations and that, if the determinations differ by more than 10 % of the mean, wherever possible both the sampling (clause 6) and the procedure (clause 7) should be repeated.

A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application.

Compliance with a British Standard does not of itself confer immunity from legal obligations.

Summary of pages

This document comprises a front cover, an inside front cover, pages i and ii, the EN ISO title page, pages 2 to 4, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.

This British Standard, having been prepared under the direction of the Pigments, Paints and Varnishes Standards Committee, was published under the authority of the Board of BSI and comes into effect on 30 November 1982

This European Standard was approved by CEN on 1995-03-23. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.

Foreword

The text of the International Standard from ISO/TC 35, Paints and varnishes, of the International Organization for Standardization (ISO) has been taken over as a European Standard by the Technical Committee CEN/TC 298, Pigments and extenders.

This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by February 1996, and conflicting national standards shall be withdrawn at the latest by February 1996.

According to CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.

0 Introduction

This document is a part of ISO 787, General methods of test for pigments and extenders.

1 Scope and field of application

This part of ISO 787 specifies a general method of test for determining the oil absorption value of a sample of pigment or extender. The oil absorption value is usually required to be compared with the value determined at the same time on an agreed sample of the product.

NOTE When this general method is applicable to a given pigment or extender, only a cross-reference to it should be included in the International Standard relating to that pigment or extender, with a note of any detailed modification which may be needed in view of the special properties of the material in question. Only when this general method is not applicable to a particular material should a special method for determination of oil absorption value be specified.

2 References

3 Definition

4 Reagent

5 Apparatus

5.1

5.2

5.3

5.4

6 Sampling

7 Procedure

7.1 Test portion

7.2 Determination

8 Expression of results

9 Test report

9 Publications referred to

BS EN ISO 787-5:1995

General methods of test for pigments and extenders - Determination of oil absorption value

Published:

30 Nov 1982

Withdrawn:

10 Apr 2026