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GB 2726-2016

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GB 2726-2016 英文版 250 购买 现货,9秒内自动发货PDF,有增值税发票。 食品安全国家标准 熟肉制品 有效

   
标准编号: GB 2726-2016 (GB2726-2016)
中文名称: 食品安全国家标准 熟肉制品
英文名称: Hygienic standard for cooked meat products
行业: 国家标准
中标分类: X09
发布日期: 2016-12-23
实施日期: 2017-06-23
旧标准 (被替代): GB 2726-2005
标准依据: National Health and Family Planning Commission Notice No.17 of 2016

GB 2726-2016
Hygienic standard for cooked meat products
中华人民共和国国家标准
食品安全国家标准
熟肉制品
2016-12-23发布
2017-06-23实施
中华人民共和国国家卫生和计划生育委员会
国 家 食 品 药 品 监 督 管 理 总 局 发 布
前言
本标准代替GB 2726-2005《熟肉制品卫生标准》及第1号修改单。
本标准与GB 2726-2005相比,主要变化如下:
---标准名称修改为“食品安全国家标准 熟肉制品”;
---修改了范围;
---修改了术语和定义;
---修改了理化指标;
---修改了微生物指标。
食品安全国家标准
熟肉制品
1 范围
本标准适用于预包装的熟肉制品。
本标准不适用于肉类罐头。
2 术语和定义
2.1 熟肉制品
以鲜(冻)畜、禽产品为主要原料加工制成的产品,包括酱卤肉制品类、熏肉类、烧肉类、烤肉类、油炸
肉类、西式火腿类、肉灌肠类、发酵肉制品类、熟肉干制品和其他熟肉制品。
3 技术要求
3.1 原料要求
原料应符合相应的食品标准和有关规定。
3.2 感官要求
感官要求应符合表1的规定。
表1 感官要求
项 目 要 求 检验方法
色泽 具有产品应有的色泽
滋味、气味 具有产品应有的滋味和气味,无异味,无异嗅
状态
具有产品应有的状态,无正常视力可见外来异
物,无焦斑和霉斑
取适量试样置于洁净的白色盘(瓷盘或同类容
器)中,在自然光下观察色泽和状态。闻其气味,
用温开水漱口,品其滋味
3.3 污染物限量
污染物限量应符合GB 2762的规定。
3.4 微生物限量
3.4.1 致病菌限量应符合GB 29921的规定。
3.4.2 微生物限量还应符合表2的规定。
表2 微生物限量
项 目
采样方案a及限量
n c m M
检验方法
菌落总数b/(CFU/g) 5 2 104 105 GB 4789.2
大肠菌群/(CFU/g) 5 2 10 102 GB 4789.3
a 样品的采样和处理按GB 4789.1执行。
b 发酵肉制品类除外。
3.5 食品添加剂和食品营养强化剂
3.5.1 食品添加剂的使用应符合GB 2760的规定。
3.5.2 食品营养强化剂的使用应符合GB 14880的规定。

GB 31604.29-2016
GB
NATIONAL STANDARD OF
THE PEOPLE’S REPUBLIC OF CHINA
National Food Safety Standard - Food Contact
Materials and Articles - Determination of Migration of
Methyl Methacrylate
食品安全国家标准
食品接触材料及制品
甲基丙烯酸甲酯迁移量的测定
ISSUED ON. OCTOBER 19, 2016
IMPLEMENTED ON. APRIL 19, 2017
Issued by. National Health and Family Planning Commission of the
People's Republic of China
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Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Principle... 4 
3 Reagents and materials ... 4 
4 Instruments and equipment ... 5 
5 Analysis steps ... 6 
6 Expression of analysis results ... 8 
7 Precision... 8 
8 Other ... 8 
Annex A Methyl methacrylate (MMA) standard gas chromatography-mass
spectrometry ion monitoring chart ... 9 
Annex B Sunflower seed oil specifications ... 10 
Foreword
This Standard replaces SN/T 2894-2011 Food contact materials for export.
Polymers. Determination of methyl methacrylate in food simulant
chromatography-mass spectrometry.
Compared with SN/T 2894-2011, the main changes in this Standard are as
follows.
- modified the standard’s name to “National Food Safety Standard - Food
Contact Materials and Articles - Determination of Migration of Methyl
Methacrylate”;
- modified the preparation of food simulate test solution;
- modified the expression of analysis results;
- modified the detection limit and quantitation limit.
National Food Safety Standard - Food Contact
Materials and Articles - Determination of Migration of
Methyl Methacrylate
1 Scope
This Standard specifies the determination of gas chromatography - mass
spectrometry of migration of methyl methacrylate in food contact materials
and articles.
This Standard is applicable to the determination of migration of methyl
methacrylate in food contact materials and articles.
2 Principle
Methyl methacrylate in water, acid, alcohol simulants are extracted with ethyl
acetate. After the sunflower oil mimetic is extracted by anhydrous ethanol, the
extract shall be detected by gas chromatography-mass spectrometry. Use
external standard method to quantify.
3 Reagents and materials
Unless otherwise stated, the reagents used in this method are of analytical
grade and water is of grade one specified in GB/T 6682.
3.1 Reagents
3.1.1 Sodium chloride (NaCl).
3.1.2 Anhydrous sodium sulfate (Na2SO4).
3.1.3 Ethyl acetate (C4H8O2). chromatographic pure.
3.1.4 Anhydrous ethanol (C2H5OH). chromatographic pure.
3.1.5 Water-based, acidic, alcohol food simulant. the reagents used are in
accordance with the provisions of GB 31604.1.
3.1.6 Sunflower seed oil. see Table B.1 in Annex B for specifications.
4.5 Volumetric flask. 50 mL, 100 mL, 1000 mL.
4.6 Organic filter. 0.45 μm.
4.8 Plugged centrifuge tube. 10 mL.
4.9 Adjustable pipettes (1 μL ~ 20 μL, 20 μL ~ 100 μL, 100 μL ~ 5000 μL).
5 Analysis steps
5.1 Sample migration test
In accordance with the requirements of GB 5009.156 and GB 31604.1, the
sample shall be subjected to a migration test to obtain a food simulant test
solution. If the food simulant test solution cannot be immediately used for the
further test, the food simulant test solution shall be preserved at 0°C ~ 4°C
refrigerator in the dark.
temperature before the further test is carried out.
5.2 Preparation of test solution
5.2.1 Preparation of water-based, acidic, alcohol simulant test solutions
Pipet 2.0 mL of the water-based, acidic, alcohol simulants obtained from the
migration test in 10 mL plugged centrifuge tube. Respectively add 0.5 g of
sodium chloride and 2 mL of ethyl acetate into the centrifuge tube. After
vortex extraction (1500 r/min) for 1.5 min, put it aside for 2 min. Remove the
supernatant. Use anhydrous sodium sulfate to dry. Filter it through a 0.45 μm
filter for gas chromatography-mass spectrometry.
Pipet 2 g (to the nearest 0.1 mg) of sunflower seed oil food simulant obtained
from the migration test into the 10 mL plugged centrifuge tube. Add 2 mL of
ethyl acetate into the centrifuge tube. After vortex extraction (1500 r/min) for 1
min, put it aside for 2 min. Centrifuge in the high-speed centrifugation (4000
r/min) for 5 min. Immediately remove the supernatant. Filter it through a 0.45
μm filter for gas chromatography-mass spectrometry.
5.3 Preparation of blank test solution
Process the food simulant not contact with food contact material according to
the steps of 5.2.1 and 5.2.2.
injected. The blank area is deducted so as to obtain the peak area of methyl
methacrylate.
6 Expression of analysis results
Obtain the concentration of methyl methacrylate in the sample solution from
the standard curve. Calculate the amount of migration according to GB
5009.156. Obtain the amount of methyl methacrylate in the food simulant and
products. The result is retained to two digits after the decimal point.
7 Precision
The absolute difference between the two independent determinations
8 Other
The detection limit of methyl methacrylate in water-based, acidic, and alcohol
simulants is 0.2 mg/L. The detection limit of methyl methacrylate in sunflower
seed oil simulant is 0.3 mg/kg.
The quantification limit of methyl methacrylate in water-based, acidic, and
alcohol simulants is 0.5 mg/L. The quantification limit of methyl methacrylate
in sunflower seed oil simulant is 0.7 mg/kg.
   
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