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Dimensions and Longitudinal Change
The test method shall be as specified in ASTM D2671.
The length and inside diameter of three 150mm long specimens of expanded sleeving shall be
measured. The specimens shall be recovered in a fan assisted air circulating oven and the length
and inside diameter of each shall be measured. The longitudinal change shall be expressed as a
percentage of the original length. The minimum and maximum recovered wall thickness shall
be determined.
Tensile Strength and Ultimate Elongation
The test method shall be as specified in ISO 37.
For sleeving of recovered bore greater than 6mm, five Type 2 dumb-bell specimens shall be
tested. For sleeving of recovered bore less than or equal to 6mm, five tubular specimens 125mm
long shall be tested. Initial jaw separation shall be 50 mm and rate of jaw separation shall be
100 ± 10mm per minute.
The test shall be carried out at a temperature of 23 ± 2°C
The test method shall be as specified in Method A of ASTM D882.
For sleeving of recovered bore greater than 6mm, five strip specimens 150mm long shall be
tested. For sleeving of recovered bore less than or equal to 6mm five tubular specimens 150mm
long shall be tested. Initial jaw separation shall be 100mm and rate of jaw separation 10 ± 1mm
per minute.
The test shall be carried out at a temperature of 23 ± 2°C.
The test method shall be as specified in Method A of ISO 1183.
The test method shall be as specified in ASTM D2671.
The specimens shall be conditioned in a fan assisted air circulating oven as specified in
Table 1.
Heat Ageing
The test method shall be as specified in ISO 188.
Five tensile test specimens prepared as in Clause 3.3 shall be conditioned in a fan assisted air
circulating oven as specified in Table 1. After conditioning the specimens shall be removed
from the oven, allowed to cool naturally to room temperature and tested for Ultimate Elongation
according to clause 3.3.