Gross consignment

Thus, when a property of the sample (which exists as a large volume of material) is to be measured, there usually will be differences between the analytical data derived from application of the test methods to a gross lot or gross consignment and the data from the sample lot. This difference (the sampling error) has a frequency distribution with a mean value and a variance. Variance is a statistical term defined as the mean square of errors the square root of the variance is more generally known as the standard deviation or the standard error of sampling. 

Sampling protocols Assurance that sample represents gross consignment... 

Annex B. Part I consists of a general section which specifies the gross consignment weights of materials from all classes for which many of the provisions do not apply. In addition, there are six listed sections... 

The process of sampling, which may vary from a 2 ton domestic consignment to a 165 000 ton export shipment, involves obtaining a number of increments (spot samples, the product of a single action of the sampling device) that are combined to form one or several gross samples. Gross samples may then be crushed and subsampled (subdivided) to provide the analytical sample. 

Standard methods for obtaining coal samples specify minimum numbers of increments required to form a gross sample, based on a consignment... 

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