ASTM D2525-90(2008)
Historical Standard: ASTM D2525-90(2008) Standard Practice for Sampling Wool for Moisture
SUPERSEDED (see Active link, below)
ASTM D2525
1. Scope
1.1 This practice covers the design of a sampling plan to be used to obtain samples for the determination of the moisture content of grease wool, scoured wool, carded wool, garnetted wool, wool top and intermediate products, and rovings.
1.2 Directions are given for the designation of sampling units, calculation of the number of sampling units required to achieve a preselected precision and confidence level or, alternatively, for calculating the confidence limits for the mean based on the variability of the sample tested.
Note 1This practice for devising a sampling plan is intended for use in connection with Test Method D 1576 or Test Method D 2462 . The sampling of raw wool for the determination of clean wool fiber present is covered in Practice D 1060 .
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
D123 Terminology Relating to Textiles
D1060 Practice for Core Sampling of Raw Wool in Packages for Determination of Percentage of Clean Wool Fiber Present
D1576 Test Method for Moisture in Wool by Oven-Drying
D2462 Test Method for Moisture in Wool by Distillation With Toluene
E122 Practice for Calculating Sample Size to Estimate, With Specified Precision, the Average for a Characteristic of a Lot or Process
Keywords
moisture content; sampling; statistics; wool ;
ICS Code
ICS Number Code 59.060.10 (Natural fibres)
DOI: 10.1520/D2525-90R08
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