T40E: Tuft And/Or Loop Length

AWTA TEST CODE

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T40E

OTHER NAMES

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LENGTH OF PILE TUFTS AND/OR LOOPS IN CARPETS 

TEST METHODS

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AS 2111.7 - Loops
AS 2111.6 - Tufts

IMAGE

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Tuft Length Measurement

APPLICATION

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The Tuft method is applicable to all types of carpets having a pile formed of U, J or W shaped tufts.

The Loop method is applicable to all types of carpets having a loop pile EXCEPT carpets the pile of which consists of bulked or stretched yarn.

PRINCIPLE

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Tuft Method: Tufts extracted from the carpet are straightened singly, using a straight glass rod in V-shaped grooves in a transparent rigid block, and their lengths measured.

Loop Method: A length of yarn containing several loops is extracted from the carpet and its straightened length measured at a constant tension.

SAMPLES REQUIRED FOR TESTING

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The sample and test specimens should be selected in accordance with the requirements of AS2119. A sample of 1 square metre is preferred but smaller sample may give an indication to the customer.

INTERPRETATION

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Some carpet specifications include a requirement for tuft and/or loop length. Where specified, measured and specified tuft and/or loop lengths should agree to within +/- 5 percent.

SERVICE TARGET

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6 days.

COST

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See Fees list.