ASTM D7704-16 PDF

Scope: 4.1 This test method is suitable for determining the quantity of aldehydes, both for quality control and quality assurance of the product.

1.1 This test method covers the wet chemical determination of total aldehydes in styrene monomer. Total aldehydes are calculated and reported as benzaldehyde. The Range of Concentration for this test method is 0.004 weight % to 0.013 weight %.

1.2 Limit of Detection (LOD) and Limit of Quantification (LOQ) is 0.0006 and 0.0020 weight %, respectively

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

1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard with the exception: weight % should be used rather than mass %.

1.5 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.

ASTM D7704-16 Referenced Document

ASTM D1193 Standard Specification for Reagent Water
ASTM D3437 Standard Practice for Sampling and Handling Liquid Cyclic Products
ASTM D6809 Standard Guide for Quality Control and Quality Assurance Procedures for Aromatic Hydrocarbons and Related Materials
ASTM E29 Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

2024 ASTM D7704-24 Standard Test Method for Total Aldehydes in Styrene Monomer by Potentiometric Titration
2016 ASTM D7704-16 Standard Test Method for Total Aldehydes in Styrene Monomer by Potentiometric Titration
2012 ASTM D7704-12 Standard Test Method for Total Aldehydes in Styrene Monomer by Potentiometric Titration
2011 ASTM D7704-11 Standard Test Method for Total Aldehydes in Styrene Monomer by Potentiometric Titration