Assessing elastomeric materials for use in the manufacture of absorbers, connecting piping and fittings for use in solar water heaters.Cross References:BS 903:Part A2BS 903:Part A3BS 903:Part A19BS 903:Part A26BS 903:Part A35BS 5173:Section 102.1BS 5173:Section 106.3BS 5173:Part A16BS 5173:Part A36BS 5173:Part A39BS 5173:Part A43BS 5176