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ASTM D6404-99(2014)

Historical Reaffirmation

Standard Practice for Sampling Vegetable Materials Containing Tannin

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1.1 This practice covers obtaining representative samples from shipment lots of botanical materials containing tannin.

1.2 The values stated in SI units are to be regarded as the standard. The inch-pound units given in parentheses are for information only.

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.


5.1 This practice provides standard procedures for obtaining representative samples of various materials used as a source of tannins for the tanning industry.

5.2 Procedures are described for obtaining representative samples of economical and convenient quantities from a lot, or sections of a lot, of material for examination and analysis so that agreement may be reached with regard to the extent of variation of quality in different portions of a lot and the average quality of the entire lot of material.

5.3 No directions for sampling, however explicit, can take the place of judgment, skill, and previous experience on the part of persons actually engaged in the sampling or the supervision of the sampling. These directions are intended to supplement that experience and, particularly, to serve as a guide in the selection of the method which is to be used, in common, by each of two or more contracting parties.

5.4 Tanning materials contain moisture in varying amounts, depending both on the nature of the material and on the climatic conditions, so that sampling must be carried out as quickly as is consistent with thoroughness in order to avoid changes in moisture content.

SDO ASTM: ASTM International
Document Number D6404
Publication Date Nov. 1, 2014
Language en - English
Page Count 5
Revision Level 99(2014)
Supercedes
Committee D31.01
Publish Date Document Id Type View
May 10, 1999 D6404-99 Revision
Dec. 1, 2020 D6404-99R20 Reaffirmation
Nov. 1, 2014 D6404-99R14 Reaffirmation
April 1, 2009 D6404-99R09 Reaffirmation
April 1, 2004 D6404-99R04 Reaffirmation