GB 5461-2000 Edible Salt

This standard specifies the technical requirements, test methods, inspection rules, packaging, marking, transportation and storage of edible salt. This standard applies to refined salt, crushed washing salt and solar salt for consumption. GB 5461-2000 Edible Salt GB5461-2000 Standard Download Decompression Password: www.bzxz.net

GB5461—2000
This standard is a revision of GB5461—1992 Edible Salt.
This standard is not equivalent to rOCT13830--1984 Edible Salt. This standard adds the calculation of whiteness and chemical indicators by wet basis percentage, and stipulates the limits of hygienic indicators for the raw materials, production process and product quality of edible salt in my country. This standard has been revised to delete the third-grade products of common salt, crushed washing salt and sun-dried salt, and adjust the indicators of potassium iodate, particle size, whiteness and some chemical components.
From the date of implementation, this standard will replace GB5461—1992. This standard is proposed by the State Bureau of Light Industry.
This standard is under the jurisdiction of the National Sea and Lake Salt Standardization Center and is responsible for its interpretation. The drafting units of this standard are: National Sea and Lake Salt Standardization Center, National Well and Mine Salt Standardization Center. The main drafters of this standard are: Liu Zhida, Chen Sujuan, Zhang Nengjun, Wang Zhibin, Fu Shuying. This standard was first issued in October 1985, revised for the first time in June 1992, and revised for the second time in December 1999. 191
1 Scope
National Standard of the People's Republic of China
Edible salt
GB 5461—2000
Replaces GB5461--1992
This standard specifies the technical requirements, test methods, inspection rules, and packaging, marking, transportation, and storage of edible salt. This standard applies to refined salt, crushed washing salt, and solar salt for consumption. 2 Referenced standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards are subject to revision, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T601—1988 Preparation of standard solutions for titration analysis (volumetric analysis) of chemical reagents GB/T602—1988 Preparation of standard solutions for determination of impurities in chemical reagents Preparation of preparations and products used in test methods for chemical reagents GB/T 603--1988
GB/T 6682--1992
Specifications and test methods for water used in analytical laboratories General standard for food labeling
GB 7718—1994
GB/T 8618—1988
Sampling methods for major products in the salt industryWww.bzxZ.net
GB/T 13025. 1---1991
GB/T 13025. 2—1991
GB/T 13025. 3--1991
GB/T 13025. 4--1991
GB/T 13025. 5----1991
GB/T 13025.6—-1991
GB/T 13025.7—1999
GB/T 13025.8—1991
GB/T 13025. 9--1991
GB/T 13025. 101991
GB/T 13025.11--1994
GB/T 13025. 12--
General test methods for salt industryDetermination of particle sizeGeneral test methods for salt industryDetermination of whitenessGeneral test methods for salt industryDetermination of water contentGeneral test methods for salt industryDetermination of water-insoluble matterGeneral test methods for salt industry
Determination of chloride ions
General test methods for salt industry
General test methods for salt industry
Determination of calcium and magnesium ions
Determination of iodide ions
General test methods for salt industry
Determination of sulfate ions Determination
General test methods for salt industry Determination of lead ions (photometry) Determination of potassium ferrocyanide
General test methods for salt industry
General test methods for salt industry
General test methods for salt industry
Determination of fluoride ions
Determination of barium ions
GB/T13025.13--1994 General test methods for salt industry, determination of arsenic ions
3 Product classification
Edible salt is crystalline sodium chloride for consumption. Edible salt can be divided into refined salt, crushed washing salt, and sun-dried salt according to its production and processing methods. According to its grade, it can be divided into: superior grade, first grade, and second grade. Molecular formula: NaCl
Approved by the State Administration of Quality and Technical Supervision on April 20, 2000 192
Implemented on October 1, 2000
GB 5461-2000
Molecular weight: 58.44 (according to the international atomic weight in 1997) 4 Technical requirements
Sensory index: White, strong taste, no peculiar smell, no obvious foreign matter unrelated to salt. 4.2 Physical and chemical indexes shall comply with the provisions of Table 1.
Physical indexes
Chemical indexes (wet basis)
Whiteness, degree
Granularity, %
Sodium chloride
Water-insoluble matter
Water-soluble impurities
Lead (in terms of Pb)
Sanitary indexes
Potassium iodate
Anti-caking agent
Arsenic (in terms of As)
Fluorine (in terms of F)
Barium (in terms of Ba)1)
Iodine (in terms of [Fe(CN), J-)2}
Potassium ferrocyanide
(in terms of [Fe(CN), J-)≤
Refined salt
0. 15~~0. 85 mm
crushed washing salt
sun salt
1.0~~3.5mm
lo.5~2.5mml
0.5~~2. 5 mm
99.1098.5097.0097.0095.50
0. 300. 50 1 0. 80
1) This determination is limited to edible salt made from natural brine containing iron. 0.20
2.00/0.80
35±15(20～50)
2) For residents in high iodine areas and people who are not suitable for iodized salt, the iodine content of non-iodized edible salt should be less than 5mg/kg. The packaging should be marked accordingly. Other technical indicators remain unchanged.
5 Test method
The reagents and water used in this method, unless otherwise specified, refer to analytical pure reagents and grade 3 water specified in GB/T6682. The standard solutions, impurity standard solutions, preparations and products required in the test, unless otherwise specified, are prepared in accordance with the provisions of GB/T601, GB/T602 and GB/T603. 5.1 Determination of particle size
Perform according to GB/T13025.1.
5.2 Determination of whiteness
Perform according to GB/T13025.2.
5.3 Determination of moisture content
According to the provisions of GB/T13025.3.
5.4 Determination of water-insoluble matter content
According to the provisions of GB/T13025.4.
5.5 Determination of fluoride ion content
According to the provisions of GB/T13025.5.
5.6 Determination of calcium ion content
According to the provisions of GB/T13025.6.
5.7 Determination of magnesium ion content
According to the provisions of GB/T13025.6.
5.8 Determination of sulfate ion content
According to the provisions of GB/T13025.8.
5.9 Determination of iodide ion content Determination
According to GB/T13025.7.
5.10 Determination of lead ion limit
According to GB/T13025.9.
5.11 Determination of arsenic ion limit
According to GB/T13025.13.
5.12 Determination of barium ion limit
According to GB/T13025.12.
5.13 Determination of fluoride ion limit
According to GB/T13025.11.
5.14 Determination of potassium ferrocyanide limit
According to GB/T13025.10.
GB5461-2000
5.15 Calculation of sodium chloride and water-soluble impurities and inspection of test results The percentage of individual ions contained in the edible salt sample is obtained from the above test results, and then the compound components are calculated according to the sequence numbers noted in Table 2. The sum of the calculated calcium sulfate, magnesium sulfate, sodium sulfate, calcium chloride, and magnesium chloride is the content of water-soluble impurities, and the remaining chloride ions are calculated as the sodium chloride content.
Cations
Anions
Sulfate (SO4)
Chloride ion (Cl )
Calcium ion (Ca2+)
(1) Calcium sulfate
(4) Calcium chloride
Magnesium ion (Mga+)
(2) Magnesium sulfate
(5) Magnesium chloride
Sodium ion (Na+)
(3) Sodium sulfate
(6) Sodium fluoride
If a compound cannot be formed due to the absence of anions or cations when calculating by sequence number, the calculation is carried out in sequence with the next sequence number, and the result is calculated to the third decimal place and then taken to the second place. When the sum of the percentage of the test compound plus the water insoluble matter and the water content (weight loss after drying plus residual crystal water or 600C burning determination value) is 99.50% to 100.40%, the analysis data is considered to be established. After edible salt is dried at 140C, its residual crystal water is calculated as calcium sulfate containing half of one crystal water, magnesium sulfate containing 1 crystal water, magnesium chloride containing 2 crystal waters, and calcium chloride containing 2 crystal waters. After edible salt is dried at 110℃, its residual crystal water is calculated as calcium sulfate containing half of one crystal water, magnesium sulfate containing 2 crystal waters, magnesium chloride containing 4 crystal waters, and calcium chloride containing 2 crystal waters. 6 Inspection rules
6.1 Batch
Products of the same grade produced by the same processing method and delivered at one time constitute a batch. 6.2 Before edible salt products leave the factory (farm), they shall be inspected batch by batch by the inspection department of the production factory (farm) or sales department in accordance with the provisions of this standard. After passing the inspection, a quality certificate shall be attached inside (outside) the package, and the product can leave the factory (farm). 6.3 Sampling method and quantity
According to the provisions of GB/T8618.
6.4 The quality of edible salt products shall be based on the quality tested at the time of product delivery. When the supply and demand parties have objections to the quality of the product, the supply and demand parties shall jointly entrust the arbitration unit to submit it, and the inspection and judgment shall be carried out in accordance with the provisions of this standard. 194
GB5461—2000
6.5 The net content of the edible salt product packaging and the quality deviation marked on it shall comply with the requirements of the "Regulations on Metrology Supervision of Quantitative Packaged Commodities" promulgated by the state.
6.6 If one of the indicators (or two indicators among particle size, whiteness and water-soluble impurities) in the test results does not meet the requirements of this standard, a spare sample of the same batch of products shall be taken and retested according to the unqualified items. If the retest still fails to meet the minimum level requirements of this type of product, the batch of products shall be judged as unqualified.
7 Packaging, marking, transportation and storage
7.1 Large packaging of edible salt must use cartons or woven bags lined with polyethylene film, and each piece weighs 25kg or 50kg. The packaging shall be accompanied by a certificate of conformity or a qualified label, and indicate: the name and address of the manufacturer, the name of the product, the quantity, the batch number, and the name (code) of the inspector. 7.2 For small packaging of edible salt, polyethylene plastic bags, paper boxes, plastic boxes (bottles) (non-toxic) may be used, and each piece weighs 1000g, 500g, 250g or less. The small packaging must be marked with the elements specified in GB7718 and affixed with the iodized salt anti-counterfeiting mark. 7.3 The transportation vehicles for edible salt must be clean and dry. The equipment must be tied firmly during transportation to ensure that it is intact. It is forbidden to mix it with goods that may cause salt pollution. The relevant responsible parties shall be responsible for damage and quality degradation caused by transportation. 7.4 Edible salt must be properly kept during storage. The storage warehouse should be ventilated to prevent rain and moisture. The stacked edible salt should be covered above and have partitions below. It is forbidden to store it together with goods that may cause salt pollution. 195
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