This standard specifies the differential scanning calorimetry method for the purity of phthalic anhydride. This standard is applicable to the purity determination of phthalic anhydride (purity greater than 98.5%).
SN/T 3807-2014 history
2014SN/T 3807-2014 Determination of the purity of phthalic anhydride by differential scanning calorimetry