ASTM D1282-05(2009)
Standard Test Method for Resistance to Airflow as an Indication of Average Fiber Diameter of Wool Top, Card Sliver, and Scoured Wool

Standard No.

ASTM D1282-05(2009)

Release Date

2005

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D1282-18

Latest

ASTM D1282-18

Scope

This test method is not recommended for the acceptance testing of commercial shipments of wool top, card sliver, or scoured wool since the referee method, Test Method D 2130, is recommended for that purpose. Although this test method is not recommended for acceptance testing, it is useful for fast quality control checks.

.If there are differences of practical significance between reported test results for two laboratories (or more), comparative test should be performed to determine if there is a statistical bias between them, using competent statistical assistance. As a minimum, use the samples for such a comparative test that are as homogenous as possible, drawn from the same lot of material as the samples that resulted in disparate results during initial testing and randomly assigned in equal numbers to each laboratory. The test results from the laboratories involved should be compared using a statistical test for unpaired data, a probability level chosen prior to the testing series. If 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.

The specific area of the wool fibers is measured by the resistance in air flow. The resistance to air flow has been related to average fiber diameter measured by the microprojection method. The instruments have been calibrated to read average diameter in micrometres. Although the reading is affected by the average fiber diameter distribution of the specimen, the results secured by the instruments give no indication of this distribution. However, in converting the micrometres reading to millitex units (Annex A1), low, medium, and high standard deviations were used in the calculations to arrive at the range of millitex units which accordingly reflect the distribution of fiber diameters.

	1) Balance Adjustment Knob	8) Porosity Calibration Control
	2) Balance Pan	9) Compression Lever
	3) Air Reservoir	10) Calibrator Plug Plunger
	4) Meter Zero Adjustment Screw	11) Porosity Calibrator Plug
	5) Porosity Test Chamber Lid	12) Calibration Weight
	6) Differential Pressure Gage	13) Weighing Balance Mechanism
	7) Porosity Zero Control	14) Atomizer Bulb
ASTM D1282-05(2009) Referenced Document ASTM D1060 Standard Practice for Core Sampling of Raw Wool in Packages for Determination of Percentage of Clean Wool Fiber Present ASTM D123 Standard Terminology Relating to Textiles ASTM D1448 Standard Test Method for Micronaire Reading of Cotton Fibers ASTM D2130 Standard Test Method for Diameter of Wool and Other Animal Fibers by Microprojection ASTM D3991 Standard Specifications for Fineness of Wool or Mohair and Assignment of Grade ASTM D3992 Standard Specifications for Fineness of Wool Top or Mohair Top and Assignment of Grade ASTM D4845 Standard Terminology Relating to Wool ASTM D1282-05(2009) history 2018 ASTM D1282-18 Standard Test Method for Resistance to Airflow as an Indication of Average Fiber Diameter of Wool Top, Card Sliver, and Scoured Wool 2005 ASTM D1282-05(2009) Standard Test Method for Resistance to Airflow as an Indication of Average Fiber Diameter of Wool Top, Card Sliver, and Scoured Wool 2005 ASTM D1282-05 Standard Test Method for Resistance to Airflow as an Indication of Average Fiber Diameter of Wool Top, Card Sliver, and Scoured Wool 1996 ASTM D1282-96(2005) Standard Test Method for Resistance to Airflow as an Indication of Average Fiber Diameter of Wool Top, Card Sliver, and Scoured Wool 1996 ASTM D1282-96 Standard Test Method for Resistance to Airflow as an Indication of Average Fiber Diameter of Wool Top, Card Sliver, and Scoured Wool Copyright ©2024 All Rights Reserved