Standard Specification for Polyolefin Monofilaments

Importancia y uso:

6.1 Acceptance Testing—The test methods in Specification D3218 for the determination of the properties of polyolefin monofilaments are considered satisfactory for acceptance testing of commercial shipments of polyolefin monofilaments, unless specified in the individual test method. These test methods are the best available and are used extensively in the trade.

6.1.1 If there are differences or practical significance between reported test results for two laboratories (or more) comparative test shall be performed to determine if there is a statistical bias between them, using competent statistical assistance. As a minimum, test samples that are as homogeneous as possible. Samples shall be drawn from the material from which the disparate test results were obtained, and randomly assigned in equal numbers to each laboratory for testing. The test results from the two laboratories shall 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 for that material must be adjusted in consideration of the known bias.

Subcomité:

D13.58

Referida por:

D7508_D7508M-20, F1551-23, D7508_D7508M-20, D4849-21

Volúmen:

07.01

Número ICS:

59.060.20 (Man-made fibres)

Palabras clave:

appearance; chemical properties (textiles); dimensional change; polyolefin monofilaments; tension (tensile) properties/tests; thickness; width; yarn; yarn number ;