Occasionally, there will be some metal in the raw grain, and the machine will wear out when it is processed into powder. This will cause the powdery grain to contain magnetic metal. The magnetic metal mixed into it has a great harm to the gastrointestinal tract. Therefore, the content of the flour quality test must not exceed 0.0038/kg. At the same time, the acicular metal with a length of more than 0.3 mm must not be included in the powder to avoid puncture. Esophagus, stomach wall, and intestinal wall harm human health. The magnetic metal detector has a very important role in the determination of metallic substances in powdered foods.
In order to eliminate the harm of magnetic metal materials, iron-supplying equipment is used in the process of milling, from raw material cleaning to finished product packaging. However, magnetic metal materials in powders sometimes exceed the allowable limits due to uncontrolled flow of powders or reduced magnetic properties of magnets. Therefore, in the quality standard of powdered grains, magnetic metal content is regarded as an important control index for formulation and consumption, and the application of magnetic metal material analyzers is increasing. According to the Ministry of Commerce, powdered foods that do not meet the standards cannot be used for food.
The content of magnetic metal in the powder is very low, and the national standard allows the maximum containing t to be 0.003, which is k8. That is, the maximum allowable t of the magnetic metal material separated from the sample is 0.0039. Therefore, the item is called t. Accuracy requirements are high. After the heavy t-method, the accuracy of t and the choice of instrument are determined according to the size of the result of the measurement item.
For a project with a large measurement result with a magnetic metal material analyzer, the constant requirement is relatively low, whereas, for a project with a small measurement result, a constant requirement is high. For example: moisture measurement: the content of moisture in grain is generally more than 10%, so when the determination using a sense of balance of 0.0018, after the constant weight of the box is required to 0.005%; and the oil containing oil is generally about 0.2% t, Therefore, a balance with a volume of 0.00018 is used for the measurement and t is called, and the constant weight requirement is 0.0019. The maximum allowable content of magnetic metal in powders is 0.003s/kg, and the accuracy requirement is high. The constant weight requirement should also be high.
In order to eliminate the harm of magnetic metal materials, iron-supplying equipment is used in the process of milling, from raw material cleaning to finished product packaging. However, magnetic metal materials in powders sometimes exceed the allowable limits due to uncontrolled flow of powders or reduced magnetic properties of magnets. Therefore, in the quality standard of powdered grains, magnetic metal content is regarded as an important control index for formulation and consumption, and the application of magnetic metal material analyzers is increasing. According to the Ministry of Commerce, powdered foods that do not meet the standards cannot be used for food.
The content of magnetic metal in the powder is very low, and the national standard allows the maximum containing t to be 0.003, which is k8. That is, the maximum allowable t of the magnetic metal material separated from the sample is 0.0039. Therefore, the item is called t. Accuracy requirements are high. After the heavy t-method, the accuracy of t and the choice of instrument are determined according to the size of the result of the measurement item.
For a project with a large measurement result with a magnetic metal material analyzer, the constant requirement is relatively low, whereas, for a project with a small measurement result, a constant requirement is high. For example: moisture measurement: the content of moisture in grain is generally more than 10%, so when the determination using a sense of balance of 0.0018, after the constant weight of the box is required to 0.005%; and the oil containing oil is generally about 0.2% t, Therefore, a balance with a volume of 0.00018 is used for the measurement and t is called, and the constant weight requirement is 0.0019. The maximum allowable content of magnetic metal in powders is 0.003s/kg, and the accuracy requirement is high. The constant weight requirement should also be high.
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