68 Pa. Stat. § 250.308
If the tenant or owner of the personal property distrained upon fails to replevy the same within said five days next after distress and notice thereof, the person distraining may, with the sheriff or his deputy or any constable or his deputy, which officer upon demand of the landlord shall aid and assist, cause the personal property so distrained to be appraised by two disinterested and competent persons appointed by said officer.
The appraisers shall each take the following oath or affirmation to be administered by the assisting officer:
"I ....................., do solemnly swear (or affirm) that I will well and truly, according to my understanding, appraise the personal property of ............., distrained on for rent by .............."
Each appraiser shall receive two dollars ($2) per diem for his services in making the appraisement, to be paid out of the proceeds of the sale.
68 P.S. § 250.308