For example, GB 17324- 1998 pure water.
order
The formulation of this standard was put forward by Guangzhou National Cooperative Group of Hygienic Standards for Cold Drink Food 1993. This standard stipulates the hygienic requirements and inspection methods of bottled drinking pure water, thus providing unified requirements for the supervision and inspection of bottled drinking pure water by food hygiene supervision institutions.
This standard includes the scope, reference standards, hygiene requirements, inspection methods, Appendix A "Hygienic Guide for Bottled Drinking Pure Water" and other parts, and each part includes several specific provisions.
Appendix a of this standard is the appendix of tips.
This standard is proposed by the Ministry of Health of the People's Republic of China.
Drafting units of this standard: Tianjin Food Hygiene Supervision and Inspection Institute, Beijing Food Hygiene Supervision and Inspection Institute, Guangdong Food Hygiene Supervision and Inspection Institute, Zhejiang Food Hygiene Supervision and Inspection Institute, Wuhan Food Hygiene Supervision and Inspection Institute, etc.
The main drafters of this standard are: Xu, Yang,,,, and E.
This standard is entrusted by the Ministry of Health to be interpreted by the Food Hygiene Supervision and Inspection Institute of the Ministry of Health.
1 range
This standard specifies the definition, hygienic requirements and inspection methods of bottled drinking pure water.
This standard is applicable to bottled drinking pure water.
2 reference standard
The clauses contained in the following standards constitute the clauses of this standard by reference in this standard. At the time of publication of this standard, all versions shown are valid. All standards will be revised, and all parties using this standard should explore the possibility of using the latest version of the following standards.
GB 4789.2—94 Determination of Total Colonies in Microbiological Examination of Food Hygiene
GB 4789.3—94 Microbiological examination of food hygiene Determination of coliforms
Microbiological examination of food hygiene-Salmonella examination
GB 4789.5—94 Microbiological examination of food hygiene-Shigella examination
Gb 4789.10-94 microbiological examination of food hygiene; Staphylococcal examination
Gb 4789.11-94 microbiological examination of food hygiene; Examination of hemolytic streptococcus.
GB 4789. 15—94 Microbiological examination of food hygiene; examination of molds and yeasts.
GB 5749-85 Hygienic standard for drinking water
GB 5750-85 Inspection method of hygienic standard for drinking water
GB 77 18—94 General Standard for Food Labeling
Test method for drinking natural mineral water (GB/T 8538- 1995)
Gb 1488 1-94 General Hygienic Standard for Food Enterprises
GB17323 ——1998 Bottled purified drinking water
3 definition
This standard adopts the following definitions.
Bottled drinking pure water
The water that meets the hygienic standard of drinking water is made by electrodialysis, ion exchange, reverse osmosis, distillation and other appropriate treatment methods, sealed in a container, and can be directly drunk without adding any additives.
4 health requirements
4. 1 raw water: it shall comply with the provisions of GB 5749.
4.2 Sensory indicators
Sensory indicators shall conform to the provisions of table 1.
Table 1 sensory indicators
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Chromaticity, degree ≤
5. No other different colors are allowed.
Turbidity, degree ≤
1
Smell and taste
No peculiar smell or peculiar smell.
macroscopic
May not be detected.
4.3 Physical and chemical indicators
4.3. 1 pH value, electrical conductivity, potassium permanganate consumption, chloride and other indicators should comply with the provisions of GB 17323.
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index
pH value
5.0-7.0
Electrical conductivity (251c), μS/cm.
10
Consumption of potassium permanganate (calculated as O2) mg/L.
1.0
Chloride (in Cl? M) mg/l
6.0
4.3.2 Physical and chemical indexes shall conform to the provisions in Table 2.
Table 2 Physical and chemical indexes
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Lead (calculated as Pb), mg/L ≤
0.0 1
Arsenic (As), mg/L ≤
0.0 1
Copper (in terms of copper), mg/L ≤
1
Cyanide (in CN? )? ) mg/l ≤
0.002
Volatile phenol (in terms of phenol)? ) mg/l ≤
0.002
Free chlorine, mg/L ≤
0.005
Chloroform, mg/L ≤
0.02
Carbon tetrachloride, mg/L ≤
0.00 1
Nitrite, (in NO2? M) ≤
0.002
Attention:? ) is a distilled water inspection item. 4.4 Microbiological indicators Microbiological indicators shall comply with the provisions in Table 3. Table 3 Microbial indicators
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Total number of colonies (cfu/mL) ≤
20
Coliform group (MPN/ 100mL)≤
three
Pathogenic bacteria (intestinal pathogenic bacteria and pathogenic cocci)
May not be detected.
Mould and yeast (cfu/mL)
May not be detected.
4.5 Health Guide
See appendix a.
5 inspection method
5. 1 sensory index
According to GB/T 8538, the chromaticity, turbidity, smell and taste, and visible matter were determined.
5.2 Physical and chemical indicators
5.2. 1 pH value, conductivity, potassium permanganate consumption and chloride are determined according to the method specified in GB 17323.
5.2.2 Free chlorine, arsenic, lead, copper, cyanide, nitrite, volatile phenol, chloroform and carbon tetrachloride shall be determined according to the method specified in GB 5750.
5.3 Microbial indicators shall be determined by the method specified in GB 4789.2.
5.3. 1 coliforms were determined according to the method specified in GB 4789.3.
5.3.2 Pathogens shall be determined according to the methods specified in GB 4789.4, GB 4789.5, GB 4789. 10 and GB 4789.1.
5.3.3 According to Appendix A, mold and yeast should be treated.
Prompt appendix
Hygienic guide for bottled drinking pure water
A 1 use
In order to guide the production of bottled purified drinking water, make it meet the requirements of food hygiene and protect people's health, this guide is formulated according to the relevant provisions of the Food Hygiene Law of People's Republic of China (PRC).
A2 scope of application
Bottled purified drinking water refers to bottled purified drinking water that can be directly consumed without adding any additives and through appropriate treatment methods such as electrodialysis, ion exchange, reverse osmosis and distillation. According to GB 4789. 15.
A3 guiding principle
Article 1 The design and layout of newly built, expanded and rebuilt production devices shall comply with GB 1488 1.
Article 2 The water treatment workshop shall be a closed room, and the filling workshop shall be closed and equipped with an air purification device. The air cleanliness shall reach 1000, and automatic filling shall be adopted.
Article 3 Equipment, pipes, tools, utensils and water storage facilities must be made of nontoxic, tasteless, corrosion-resistant and easy-to-clean materials, with smooth surfaces, no pits, peeling, cracks, dead ends and no scaling, and easy cleaning and disinfection. The water storage tank should be convenient for drainage to avoid microbial pollution caused by the formation of stagnant water layer.
Article 4 Packaging materials shall meet the relevant national hygiene standards, and recycling bottles are prohibited. Automatic equipment must be used before filling bottles and caps, and strict cleaning and disinfection are required.
Article 5 Effective disinfection measures shall be taken to detect the total number of colonies, coliforms and drug residues. Terminal water, washed bottles and lids shall not be detected.
Article 6 Employees must maintain good personal hygiene. Before entering the workshop, you must wear neat work clothes, work caps and work shoes. Work clothes should cover the coat and hair should not be exposed outside the hat. Personnel entering the filling room must change clothes for the second time and wear masks before entering. & lt，/SPAN & gt；
Seventh pure water production units should establish their own health management organization, equipped with qualified inspectors; Establish an inspection room that meets the requirements and adapts to the production capacity, and be responsible for product inspection. Its sensory indicators, pH value, conductivity, total number of colonies and coliform bacteria must be inspected once per batch, and they must be allowed to leave the factory after passing the inspection.
Eighth pure water production units should regularly inspect the raw water, and at the same time should be inspected once a year according to GB 5749; Except for routine inspection of each batch of purified water products, all items shall be inspected twice a year according to this standard. When production is stopped, all items must be inspected before production, and the inspection report should be properly kept for inspection by the food hygiene supervision agency.
Article 9 Bottled purified drinking water must comply with the Food Hygiene Law of People's Republic of China (PRC) and GB 77 18. In addition to the name of the commodity, it should also indicate the words of its main process and purified water. Pure water produced by non-distillation process cannot be marked as distilled water.
net content
The negative deviation of the content of a single quantitative package shall not exceed the provisions in Table 4. The average content of samples of the same batch of products shall not be lower than the net content indicated on the label.
Net content (q)
minus deviation
Percentage of q
millilitre
100 ml-200ml
4.5
-
200ml-300ml
-
nine
300ml-500ml
three
-
500ml-1 l
-
15
1L- 10L
1.5
-
10L- 15L
-
150
15L-25L
1
-
Bacteria can be roughly divided into three types according to their shapes: spherical, rod-shaped and spirillum. The diameter of cocci is about 0.75- 1.25μm, the length of bacilli is about 2-5μm, and the length of spirillum is about 100-200 μ m. ..
The virus size is about 2-30μm, the largest virus is about 30μm, and the smallest virus causing polio is about 2.8μm m.