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1 安全要求1.1 国家标准 根据GB18406.2-2001,无公害水果的安全要求包括重金属及其它有害物质卫生限量和农药最大残留限量。 要求表明,重金属有砷、汞、铅、铬、镉和氟等6种元素,其它有害物质包括亚硝酸盐（以NaNO3计）和硝酸盐（以NaNO3计）。农药最大残留限量涉及马拉硫磷、对硫磷、甲拦磷、甲胺磷、久效磷、氧化乐果、甲基对硫磷、克百威、水胺硫
1 Safety Requirements 1.1 National Standards According to GB18406.2-2001, the safety requirements of pollution-free fruits include the hygiene limit of heavy metals and other harmful substances and the maximum residue limit of pesticides. The requirements indicate that there are 6 elements of arsenic, mercury, lead, chromium, cadmium and fluorine in heavy metals. Other harmful substances include nitrite (calculated as NaNO3) and nitrate (calculated as NaNO3). Maximum Residue Limits for pesticides include malathion, parathion, clathrate, methamidophos, monocrotophos, omethoate, parathion-methyl, carbofuran,