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ASTM D 4471-2000 standard test method for pyridine bases in cresylic acid by direct titration

Standard Number:  ASTM D 4471-2000
Title:  standard test method for pyridine bases in cresylic acid by direct titration
Language:  English
Replaced by Standard:  ASTM D4471-10

Replacing Standard:  ASTM D 4471-1994

Publication Date:  2000/1/10
Execute Date:  2000/1/10
Status:  Withdrawn
International Classification for Standards (ICS)CHEMICAL TECHNOLOGY>>Organic chemicals>>Organic nitrogen compounds
Publisher:  American Society for Testing Material (ASTM)
Price:  
Number of Pages:  

Description:

1.1 This test method covers the determination of pyridine and other basic nitrogen impurities in crude and refined cresylic acids streams, including mixtures.

1.2 This test method is applicable for pyridine base levels of 0.001% to 0.5%.

1.3 The following applies to all specified limits in this standard: For purposes of determining conformance with this standard, an observed value or a calculated value shall be rounded off "to the nearest unit" in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E29.

1.4 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. For specific hazard statements, see Section 7.

  
File Format:  PDF(Acrobat Reader) or Word version doc Document
File Size:  516KB
Tile in English:  standard test method for pyridine bases in cresylic acid by direct titration

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