The latest sample test detected no melamine in newly supplied liquid milk on China's market, the country's quality watchdog said Saturday.

Samples of 609 batches of liquid milk from 27 cities across China were found free of melamine, said the General Administration of Quality Supervision, Inspection and Quarantine (AQSIQ).

Altogether 75 brands were sampled for the test, including top-selling ones such as Yili, Mengniu, Bright Dairy, Sanyuan and Wandashan, according to the AQSIQ.

Reports on testing milk are posted on shelf at a supermarket in Shijiazhuang, capital city of north China's Hebei Province Sept. 27, 2008.[Xinhua]

The test was the sixth in China after the tainted milk powder scandal erupted last month. A total of 2,093 batches of liquid milk under 115 brands, among other dairy products, have been checked since then, said the AQSIQ.

A nationwide inspection of baby milk powder was ordered on Sept. 11 after media reports that products from Sanlu and other Chinese brands contained melamine. Testing has been broadened from baby formula to other types of milk products.

In the previous inspection, on Sept. 30, officials tested 265 batches of adult milk powder produced before Sept. 14 by 154 companies, and the tests found 31 batches from 20 companies were tainted with melamine.

Some 13,000 infants nationwide have been hospitalized with kidney problems and at least three have died after drinking baby formula tainted with melamine, a toxic chemical added to raw milk to raise its apparent protein content.

(Xinhua News Agency October 6, 2008)