Standard Test Method for Width of Textile Fabric

Importancia y uso:

5.1 Option A procedures of Test Method D3774 for width are considered satisfactory for acceptance testing of commercial shipments because they are used extensively in the trade.

5.1.1 In case of a dispute arising from differences in reported test values when using Test Method D3774 for acceptance testing of commercial shipments, the purchaser and the supplier should conduct comparative tests to determine if there is a statistical bias between their laboratories. Competent statistical assistance is recommended for the investigation of bias. As a minimum, the two parties should take a group of test specimens which are as homogeneous as possible and which are from a lot of material of the type in question. The test specimens should then be randomly assigned in equal numbers to each laboratory for testing. The average results from the two laboratories should be compared using Student's t-test for unpaired data and an acceptable probability level chosen by the two parties before testing is begun. If a bias is found, either its cause must be found and corrected or the purchaser and the supplier must agree to interpret future test results in the light of the known bias.

Subcomité:

D13.60

Referida por:

D6337-98R19, D3776_D3776M-20, D4029_D4029M-23, D4850-23, D0580_D0580M-24, D4851-07R19E01, D0579_D0579M-24, D3656_D3656M-13R21, D4389_D4389M-23, D2646-24, D4028_D4028M-13R21, D3776_D3776M-20, D5446-08R19

Volúmen:

07.01

Número ICS:

59.080.30 (Textile fabrics)

Palabras clave:

knit fabric; width; woven fabric;