• ASTM D7881-20

ASTM D7881-20

Standard Test Method for Determination of 4-Carboxybenzaldehyde and p-Toluic Acid in Purified Terephthalic Acid by Capillary Electrophoresis with Reverse Voltage Mode

ASTM International, 10/01/2020

Publisher: ASTM

File Format: PDF

$31.00$62.00


Published:01/10/2020

Pages:8

File Size:1 file , 170 KB

Note:This product is unavailable in Russia, Ukraine, Belarus

1.1''This test method2 covers the determination of 4-carboxybenzaldehyde (4-CBA) and p-toluic acid (p-TOL) in purified terephthalic acid (PTA) by capillary electrophoresis (CE) with reverse voltage mode and UV detection. It is applicable for 4-CBA from 3 to 400 mg/kg and for p-TOL from 8 to 400 mg/kg, respectively.

1.2''In determining the conformance of the test results using this method to applicable specification, results shall be rounded off in accordance with the rounding-off method of Practice E29.

1.3''The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5''This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

More ASTM standard pdf

ASTM E829-23

ASTM E829-23

Standard Practice for Preparing Refuse-Derived Fuel (RDF) Laboratory Samples for Analysis

$25.00 $50.00

ASTM D7980-15(2023)

ASTM D7980-15(2023)

Standard Guide for Ion-Chromatographic Analysis of Anions in Grab Samples of Ultrapure Water (UPW) in the Semiconductor Industry

$25.00 $50.00

ASTM D1922-23

ASTM D1922-23

Standard Test Method for Propagation Tear Resistance of Plastic Film and Thin Sheeting by Pendulum Method

$28.00 $57.00

ASTM E1820-23b

ASTM E1820-23b

Standard Test Method for Measurement of Fracture Toughness

$47.00 $95.00