preface
ISO (International Organization for Standardization) is a global alliance of national standards bodies (ISO member bodies). The development of international standards is usually carried out through ISO technical committees. Each member institution interested in a subject on which a technical committee has been established has the right to be represented on that committee. International governmental and non-governmental organizations liaising with ISO are also involved in this work. ISO works closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.

International standards are drafted in accordance with the rules given in Part 2 of the ISO/IEC Directive.

The main task of the technical committee is to set international standards. The draft international standards adopted by the Technical Committee will be circulated to member bodies for voting. Publication as an international standard requires approval by at least 75% of member bodies.

Please note that certain contents of this document may be subject to patent rights. ISO is not responsible for identifying any or all such patents.

ISO 2811-2 was developed by Technical Committee ISO/TC 35, Paints and Varnishes, Subcommittee SC 9, General Test Methods for Paints and varnishes.

The second edition cancelled and replaced the technically revised first edition (ISO 2811-2:1997).

The main changes are as follows.

a) The unit of density has been changed from grams per milliliter to grams per cubic centimeter, as this is the more common SI unit.

b) The confirmation in duplicate has been changed to a single confirmation.

c) Information about calibration procedures has been changed to sample only and the status of Annex B has been changed from normative to informative.

d) Precision data has been updated through inter-laboratory testing.

e) Normative references have been updated.

ISO 2811 consists of the following parts under the general heading Paints and varnishes – Determination of density:

— Part 1: Gravity bottle method

— Part 2: Immersion (plunge) method

— Part 3: Oscillation method

— Part 4: Pressure cup method

ISO 2811-2-2011 “Paints and varnishes — Determination of density — Part 2: Submerged body (side hammer method)”

1 range
This part of ISO 2811 specifies a method for determining the density of paints, varnishes and related products, using balls or other round bodies as dips (plunges).

This method is limited to low or medium viscosity materials and is particularly suitable for production control.

2 Normative references
The following references are required for the use of this document. For dated references, citation-only versions apply. For undated references, the new version of the reference (including any revisions) applies.

ISO 1513, Paints and varnishes – Examination and preparation of test samples

ISO 15528, Paints, varnishes and raw materials for paints and varnishes — Sampling

3 Terms and Definitions
For the purposes of this document, the following terms and definitions apply.

3.1 Density R

Mass divided by the volume of a part of the material

Note 1: It is expressed in grams per cubic centimeter.

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