ASTM International

Standard Practice for Sampling Wool for Moisture
 N D2525

Annotation

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.

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 1—This practice for devising a sampling plan is intended for use in connection with Test Method D1576 or Test Method D2462. The sampling of raw wool for the determination of clean wool fiber present is covered in Practice D1060.

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.

Автоматический перевод:

Общепринятая практика для выборки шерсти для влаги

Эта практика покрывает дизайн плана выборки, который будет использоваться для получения образцов для определения влажности шерсти жира, мытой шерсти, чесал шерсть, garnetted шерсть, шерстяной топ и промежуточные изделия и скитания.