Meaning and use

5.1 This test method is intended for use in the formulation of specifications, as an internal quality control tool, and in the development or research of industrial aromatics and related materials. This test method gives an indication of residual acidity and is a measure of the quality of the finished product. This indicates a tendency for products to corrode equipment.

ASTM D847-2016 Standard Test Method for Acidity of Benzene, Toluene, Xylene, Solvent Naphtha, and Similar Industrial Aromatics

Step 1: Scope

1.1 This test method is used to detect the acidity of benzene, toluene, xylene, solvent naphtha and similar industrial aromatics.

1.2 Values expressed in SI units shall be regarded as standard values. No other units of measurement are included in this standard.

1.3 This standard is not intended to address all safety concerns, if any, associated with its use. It is the responsibility of users of this standard to establish appropriate safety and health practices and to determine the applicability of regulatory restrictions prior to use. See section 9 for specific hazard descriptions.

2. Reference documents (purchased separately)

ASTM standard

D1193 reagent water specification

D3437 Procedure for sampling and handling of liquid cycle products