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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.

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