http://muchong.com/bbs/search.php?_f=xgztss&wd=%B2%E2%B6%A8%D2%B6%CB%E1 WebGB5009.4—2016 2 5 分析步骤 5.1 坩埚预处理 5.1.1 含磷量较高的食品和其他食品 取大小适宜的石英坩埚或瓷坩埚置高温炉中,在550℃±25℃下灼烧30min,冷却至200℃左右, 取出,放入干燥器中冷却30min,准确称量。重复灼烧至前后两次称量相差不超过0.5mg为恒重。 5.1.2 淀 …
GB 5009.3-2016 食品安全国家标准 食品中水分的测定.pdf
Web15 mL of water, 2.5 mL of sulfuric acid solution (5%), 2 mL of ammonium. molybdate solution (50 g/L), and 0.5 mL of stannous chloride-hydrazine sulfate. solution; ADD water to 25 mL for each tube and MIX well. After placing at room. temperature for 20 min, USE a 1 cm cuvette, at a wavelength of 660 nm, to. http://down.foodmate.net/standard/sort/3/50474.html pat mccalla rutan
21. JGJ 202-2010 建筑施工工具式脚手架安全技术规范_凡人图书 …
WebJun 17, 2024 · GB5009.42~2016. 食品安全国家标准. 食盐指标的测定. 范围. 本标准规定了食盐中氯化钠、铅、总砷、镉、总求、钡、氯化钾、亚铁氰化钾、碘的检测方法。. 木标准适用于食盐指标的测定。. 2氮化钠的测定. 2.1水分的测定. 按GB5009.3中直接燥法操作,将燥温度 … Web5009.44-2003 “Method for analysis of hygienic standard of meat and meat. products”. This standard will integrate the above standards, with the main modifications. are as follows. - MODIFY the standard name into “National food safety standard -. Determination of chloride in foods”; - Based on the principle of chloride determination ... WebApr 14, 2024 · GB5009.275-2016.pdf. GB5009.278-2016.pdf. GB50095-2010\GB 5009.5-2010 食品安全国家标准 食品中蛋白质的测定 (第1号修改单).pdf. GB50095-2010\GB 50095-2010 食品安全国家标准 食品中蛋白质的测定.pdf. GBT5009.1-2003.pdf. カセットラジオ usb