Test Method: SATRA TM134

Density of materials by volume displacement

June 2024

SCOPE

This test method is intended to determine the density (mass per unit volume) of materials by measuring their volume displacement in water. The method is mainly applicable to rubbers and plastics but can be used with any type of non-absorbent material.

PRINCIPLE

The test specimen is first weighed in air. It is then reweighed fully immersed in water. The apparent loss in weight is equal to the weight of water displaced, see clause 8.1. The volume displacement, equal to the volume of the test piece, is then calculated and divided into the weight in air to give the density. See also clause 8.2 for explanation of the synonymous terms ‘Specific gravity’ and ‘Relative density’.

REFERENCES

SATRA TM68 – Density of cellular materials.

HISTORY

First issued June 1986. Revised July 1993, October 1998. Amended January 2010.

AVAILABILITY

This test method is available to members and non-members.

PRICE (ex. VAT)

This price is for a printed copy of the Test Method.

• Members: £75
• Non-members: £215

TYPE

• General and physical properties (other than strength)

USAGES

• Solings - PVC, TR and other thermoplastic
• Solings - rubber, EVA and other crosslinked