Total Acid Number Standard: 0.1 mg/g KOH

Mean Measured Value:   0.098 mg/g KOH

Specification:   0.090 – 0.110 mg/g KOH

Method of Analysis:
Potentiometric titration in accordance with ASTM D664, Method A (inflection end-point).

Metrological Traceability:
The result reported above was determined by analysis of a sample of this lot taken at time of manufacture. Test Method used was TP-TAN. This solution was checked by means of Analytical Volumetric Standard Potassium Hydroxide in Propanol-2-ol. It is directly traceable to NIST (USA), 84L Potassium Hydrogen Phthalate. All raw materials used to prepare this product are of high purity. This certificate relates solely to the lot number given above. The uncertainty of measurement has been calculated not to exceed ± 6.0% at 95% confidence level, i.e. coverage factor k =2.

注：以上信息仅供参考，以产品附带证书为准。