Program : Materials Design and Production (C1-22)

A stockpot is an important item of cookware for cooking noodles and soup. The stockpots found in the Thai market are mostly made of stainless steel sheets which are formed into a pot with two or three compartments, whose seams are joined with lead-tin solders. During use at elevated temperature, chloride-containing solution, e.g. soup, can cause lead dissolution which is additionally accelerated by the effects of galvanic corrosion. This type of corrosion is driven by the potential difference between two dissimilar metals in direct contact with chloride-containing solution. To avoid lead contamination in food, it is recommended that lead must be prohibited for use and repair in cookware. Therefore, the cabinet meeting on January 2, 2008 passed an integrated action plan to solve the problem of lead-tin soldered cookware. One of the missions is for the Thailand Industrial Standard Institute to issue an Industrial Product Standard of Stainless Steel Cookware: Seamed Stockpots to be enforced on stainless steel stockpot manufacturing. MTEC representatives from the Failure Analysis and Materials Degradation lab participated in the academic committee of this standard.

The academic committee of Industrial Product Standard for Stainless Steel Cookware: Seamed Stockpots also include representatives from the Department of Medical Science, the Department of Science Service, Mahidol University, the Department of Industrial Promotion, and small to large stainless steel stockpot manufacturers. The MTEC role is to place emphasis on food grade materials selection, appropriate lead-free forming method, and technical testing standards for safety and reliability of stainless steel stockpots. Currently, the draft of the Industrial Product Standard of Stainless Steel Cookware is in the approval process by the Industrial Product Standard Committee.

Public hearing of the Draft Industrial Product Standard of Stainless Steel Cookware: Seamed Stock Pot on 29 July 2008 at Thailand Industrial Standard Institute led by Associate Professor Siriluck Nivitchanyong, Chairman of academic committee, and Dr. Ekkarut Viyanit.


Project Leader :

Assoc.Prof.Siriluck Nivitchanyong, Chairman of Academic Committee for Industrial Product

Standard of Stainless Steel Cookware: Seamed Stockpots, Dr. Ekkarut Viyanit (ekkarutv)

Research Team :

Wanida Pongsaksawad, Kosit Wongpinkaew, Piya Khamsuk, Noramon Intaranont