ASTM E105-21

Podrobné informace

Označení: ASTM E105-21

Datum vydání: 01.06.2021

Stran: 4

Země: Americká technická norma

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Anotace

This practice is primarily a statement of principles for the guidance of ASTM technical committees and others in the preparation of a sampling plan for a specific material. The purpose of the sample may be to estimate properties of a larger population, such as a lot, pile or shipment, the percentage of some constituent, the fraction of the items that fail to meet (or meet) a specified requirement, the average characteristic or quality of an item, the total weight of the shipment, or the probable maximum or minimum content of some chemical. A probability sampling plan will possess an objective procedure for the selection of the sample with the use of random numbers and a definite formula for the estimate and standard error of any estimate.


Keywords:
bulk sample, probability sample, random sample, sampling plan, stratification, systematic sample,, ICS Number Code 91.100.01 (Construction materials)