ASTM D5808 Organic Chloride in Aromatic Hydrocarbons and Related Chemicals
ASTM D5808 Standard Test Method for Determining Organic Chloride in Aromatic Hydrocarbons and Related Chemicals by Microcoulometry
13. Procedure
13.1 Clean the syringe to be used for the sample. Flush it several times with the sample. Determine the chloride concentration in accordance with 12.4-12.6.

13.2 Chloride determination for the sample may require a change in titration parameters or adjustment in sample size, or both.

14. Calculation
14.1 Measurement utilizing volume and known specific gravity in milligrams per kilograms as follows:


14.2 Measurement utilizing weight of sample, considering dilution's in milligrams per kilograms as follows:

where:
M = measured chloride value, µg,
B = blank chloride value, µg,
v = sample injection volume, mL,
w = weight of sample, g,
D = density, and
RF = recovery factor = grams chlorides titrated/theoretical value.

14.3 If this equation does not apply to your instrument, then follow instrument manufacturer's recommendations.