Then, probaly just buy a capacitance meter. Usually, big, huge capacitors like those would be have no problems and has been tested. That's also why most over 1uF capacitors have labels on themallvol said:Then check this out:
http://justhandhelds.com/Merchant2/merchant.mv?Screen=PROD&Store_Code=001&Product_Code=10001&Category_Code=99-010