Dongguan Xin Bao Instrument SBT401 Руководство по эксплуатации - Страница 15

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Dongguan Xin Bao Instrument Co., Ltd

Weigh all specimens before and after abrasion at each of the pre determined intervals.

Draw a graph of no. of rubs against mass loss.

(see also ISO 12947 part 3). For further details of the test method)

TABLE 1

TEST SERIES NO. OF RUBS AT WHICH

SPECIMEN BREAKDOWN

OCCURS

1000\

>1000 5000

>5000 10000

>1000025000

>25000 50000

>50000 100000

>100000

The values in brackets should be agreed upon between the interested parties.

5.4 Test Procedure – Pilling

Consult table 2 to determine which accessories should be used to conduct the Pilling test.

Pairs of samples are rubbed together for periods which again vary according to the test method being

used (see Swiss Standard SN 198525) for further details.

Table 2

0.65kPa

For woven and all upholstery including

(knitted) when following SN 198525

0.25kPa

For knitted fabric (excluding upholstery when

testing to SN198525

Table 3

First pair

125 cycles

The three pairs of samples are used to provide examples of nil, slight and moderate levels of pilling

required in the assessment procedure described below.

When carrying out the test on the third pair it is important to stop the machine after every 500 cycles

and lightly brush away any loose fibres which may have gathered on the test surface.

The degree of Pilling should be assessed using the following 5 point scale.

Zero or only very slight pilling

Slight pilling

Moderate pilling

Severe pilling

Very severe pilling

When the appearance falls between two of the descriptions given above half values may be given. A

Add: The 3rd Industrial Zone, Chashan Town, Dongguan. Tel: 0769-33365786 www.ots-testequipment.net

Second pair

500cycles

DETERMINATION OF MASS LOSS AT

FOLLOWING NUMBER OF RUBS

100, 250, 500, 750, 100, (1250)

500, 750, 1000, 2500,5000, (7500)

1000, 2500, 5000, 7500, 10000, (15000)

5000, 7500, 10000, 15000, 25000, (40000)

10000, 15000, 25000, 40000, 50000,(75000)

10000, 25000, 50000, 75000,100000, (125000)

25000, 50000, 75000, 100000, (125000)

Swiss pilling kit with pilling weight

Swiss pilling kit without the pilling

weight

Third pair

2000 cycles