Sampling Methodology
Standardized procedures for extracting representative specimens from packed bales of wool ensure that the clean content is accurately measured. The technique described in core boring astm d1060 involves driving a hollow tube into the center of the bale to retrieve a cross section of the fibers. This method provides a random sample that accounts for the variation in grease and vegetable matter throughout the entire volume of the lot.
Tool Operation
Boring tools must be sharp enough to cut through the fibers without pushing them aside or causing excessive heat. According to the guidelines in core boring astm d1060, the tube should have a minimum internal diameter to prevent the clogging of the specimen. Operators must follow a specific pattern of entry points to ensure the sample is not biased toward the outer edges of the bale.
The resulting cores are immediately sealed in airtight bags to prevent any change in moisture content before laboratory analysis.
Technical Advantage
Hand sampling or simple grab methods fail to reach the interior of high density bales where impurities often settle. Using core boring astm d1060 allows for a statistical confidence level that matches the requirements of international trade. It minimizes the physical damage to the wool while providing enough material for multiple laboratory tests.
Accuracy Validation
Yield results depend on the integrity of the physical sample retrieved from the warehouse floor.