The first shipment of U.S. bone-in beef to Taiwan in five years has passed a document review, the Bureau of Standards, Meteorology and Inspection (BSMI) under the Ministry of Economic Affairs said Friday. According to the BSMI, its inspectors found that the beef shipment conforms to the information on the three accompanying Quality System Assessment (QSA) certificates issued by the U.S. Department of Agriculture -- beef safety certificates, quarantine certificates and beef export certificates. The 163-kilogram bone-in beef shipment, which included T-bone steaks and ribs, arrived in Taiwan early Friday morning. A temperature check was carried out before the shipping crates were opened to ensure that all refrigerated or frozen products were kept at the correct temperature to avoid the risk of cross contamination or food poisoning. Samples of the beef products have been taken for lab testing to determine the microbiological condition of the beef and whether it contains any drug or chemical residues, said Chang Mao-chang, director of the BSMI Hsinchu branch. Chang said BSMI inspectors will work extra hours over the weekend. If all the results of the lab tests prove satisfactory, the shipment is expected to clear customs on Monday, he added. The second batch of about 150 kilograms of U.S. bone-in beef is expected to arrive Jan. 22. The importation of U.S. bone-in beef has been a contentious issue in Taiwan for months, with opponents of the trade deal expressing fears over mad cow disease. 