Bisphenol A, also known as BPA, is an organic compound with the molecular formula c15h16o2.
In industry, bisphenol A is used to synthesize polycarbonate (PC) and epoxy resin. Since the 1960s, it has been used to make plastic (milk) bottles, suction cups for young children, and inner coating of food and beverage (milk powder) cans. BPA is everywhere, from mineral water bottles, medical devices to the inside of food packaging. Every year, 27 million tons of plastics containing BPA are produced all over the world. But BPA can also lead to endocrine disorders, threatening the health of fetuses and children. Obesity caused by cancer and metabolic disorders is also considered to be related. The EU believes that bottles containing bisphenol A will induce precocious puberty, and the production of baby bottles containing chemical bisphenol A (BPA) will be banned from March 2, 2011.
National restrictions on BPA / bisphenol A
China
GB 13116-91 hygienic standard for polycarbonate resin for food containers and packaging materials.
GB 14942-94 hygienic standard for polycarbonate molded products for food containers and packaging materials.
GB / T 5009.99-2003 analysis method for hygienic standard of polycarbonate resin for food containers and packaging materials.
China's health standard stipulates that the dissolution amount of phenol (distilled water, refluxing for 6h) in carbonate resin and molded products shall not be greater than 0.05 mg / kg. The method of titration is used to quantitatively calculate the free phenol in the solution.
european union
EU Regulation 2002 / 72 / EC stipulates that the migration limit of BPA / bisphenol A in plastic food contact materials is 3 mg / kg.
The European Union uses liquid chromatography to detect the migration of bisphenol A (the detection limit is 0.2 ~ 0.7 mg / kg).
U.S.A
The U.S. Food and Drug Administration (FDA) stipulates that BPA / bisphenol A can be used as raw materials for food contact materials.
EPA (1993) stipulates that the maximum acceptable dose or reference dose is 0.05mg/kg.bw.
Japan
The food hygiene law stipulates that the dissolution limit of BPA / bisphenol A in polycarbonate food containers is 2.5 mg / kg.
