Dongguan Xin Bao Instrument SBT401 Bedieningshandleiding - Pagina 14

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Dongguan Xin Bao Instrument Co., Ltd

Place a 90mm disc in the recessed top of the loading device.

Invert a specimen holder and place it on top of the felt.

Carefully roll the rubber ring up the loading block until it locates in the groove.

Remove the specimen holder.

Note the spindles which are used for abrasion are the shorter ones which are supplied and the

spindles for pilling are the longer ones which are supplied.

10.

To load the pilling tables, see table 1 to decide which abradant should be used or consult the

relevant standard being tested to.

11.

In both cases the procedure detailed in section 5.1 relating to abrading tables should be used.

12.

Repeat this process for all specimen holders and abrading tables.

13.

Ensure that all counters are reading zero then start the test.

The method of assessing the end point will vary according to which standard is being tested to. The

following methods are suggested methods only.

5.3 Test Procedure - Abrasion

Determination of specimen breakdown.

Normally four specimens are tested, one in each of the abrading stations.

Inspect the specimens at regular intervals without removing the specimens from the holders,

A magnifying glass or microscope will normally be required for this examination.

The end point is deemed to have been reached when the specimen has at least two threads broken in

the test area.

This should be carried out until all the specimens have reached this end point

Report the individual results as well as the mean result.

Replace the rubbed specimens in the holes on the mounted report sheet.

Note once a specimen has reached the end point it is not necessary to replace this holder for the

continued running of the test.

Determination of Mass Loss

See table 1 to determine at which intervals the mass loss should be determined.

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