標準編號:	GB/T 5009.74-2003
中文名稱:	食品添加劑中重金屬限量試驗
英文名稱:	Method for limit test of heavy metals in food additives
中標分類:	C65    勞動安全技術綜合
行業分類:	GB    國家標準
ICS分類:	67.040 67.040    食品綜合 67.040
發布機構:	中華人民共和國國家質量監督檢驗檢疫總局
發布日期:	2003-8-11
實施日期:	2004-1-1
標準狀態:	superseded
被新標準替代:	GB 5009.74-2014 食品安全國家標準 食品添加劑中重金屬限量試驗
被替代日期:	2016-3-21
替代舊標準:	GB/T 8451-1987 食品添加劑中重金屬限量試驗法
翻譯語言:	英文
文件格式:	PDF
中文字符數:	3000 字
翻譯價格(元):	100.0
交付時間:	付款后 1 個工作日

Method for Limit Test of Heavy Metals in Food Additives 1 Scope This standard specifies the method for limit test of heavy metals in food additives. This standard is applicable to the limit test of heavy metals in food additives. 2 Principle In the presence of weak acid (pH 3~4), heavy metal ion in the test sample will act with hydrogen sulfide to generate a substance in brownish black, which is compared to the lead standard solution experiencing the same treatment for limit test. 3 Reagents 3.1 Nitric acid. 3.2 Sulfuric acid. 3.3 Hydrochloric acid. 3.3.1 6 mol/L hydrochloric acid: measure 50mL of hydrochloric acid and dilute it with water to 100 mL. 3.3.2 1 mol/L hydrochloric acid: measure 8.3mL of hydrochloric acid and dilute it with water to 100 mL.