Standard Test Method for Tuft Element Length of Uncoated Pile Yarn Floor Coverings

Importancia y uso:

5.1 The determination of the tuft length of pile yarn floor covering is useful in quality and cost control during the manufacture of pile yarn floor covering. Both appearance and performance can be affected by changes in this characteristic.

5.2 In case there are disputable differences between reported test results for two or more laboratories, comparative tests should be performed to determine if there is a statistical bias between them, using competent statistical assistance. At a minimum, test samples should be used that are as homogeneous as possible, that are drawn from the material from which disputable test results were obtained, and that are assigned randomly in equal numbers to each laboratory for testing. The test results from the two laboratories should be compared using a statistical test for unpaired data, at a probability level chosen prior to the testing series. If a bias is found, either its cause must be found and corrected, or future test results must be adjusted in consideration of the known bias.

Subcomité:

D13.21

Referida por:

D5684-19A, D6719-22E01

Volúmen:

07.02

Número ICS:

97.150 (Floor coverings)

Palabras clave:

carpet; pile yarn floor covering; textile floor covering;