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Metrology case study simulation questions

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Short answer

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【Case number one】

The metrological supervisor of a metrological supervision agency, when supervising and inspecting a manufacturer of quantitatively packed goods in a supermarket, checked the net content labeling of the quantitatively packed goods of the manufacturer, and sampled the actual content of a single piece of quantitatively packed goods. It was found that the provisions of the Measures for the Supervision and Administration of the Measurement of Quantitative Packaging Commodities were violated, so the quantitative packaging products of the enterprise were assessed to meet the measurement requirements.

During the metrological supervision and inspection of the quantitatively packaged goods in a supermarket shelf, it was found that the six types of quantitatively packaged goods are labeled as follows: A, content: 500 g; B, net content: 500 g; C, net content: 5 00 M1; D, net content 50L; E, net content: 5Kg; F, net content: 100 cm.

problem:

(1) What are the requirements for the measurement of net content of quantitatively packaged goods?

(2) What are the wrong labels to indicate the quantitative packaging products of this supermarket?

Question score (20)

Metrology case study simulation questions

(1) According to Article 8 of the “Measures for the Supervision and Administration of the Measurement of Quantitative Packaging Commodities”, the actual content of a single quantitatively packaged product shall accurately reflect its labeled net content, and the difference between the labeled net content and the actual content shall not be greater than the allowable shortage.

Article 9 stipulates that the average actual content of a batch of quantitatively packaged goods shall be greater than or equal to its stated net content. Sampling method is used to evaluate the quantitatively packed goods of an inspection lot, and sampling inspection and calculation shall be carried out according to the regulations. The difference between the marked net content of a single quantitatively packaged product in the sample and its actual content is greater than the number of allowable shortages, and the average actual content of the sample should meet the requirements of the Measures. ”Therefore, the above-mentioned supervision and inspection does not comply with the“ Measures for the Supervision and Management of Quantitative Packaging Products ” The requirements of Article 9 stipulate that the supervision and inspection of the net content of quantitatively packaged commodities shall include the inspection of the actual content of a single quantitatively packaged commodity and the inspection of the average actual content of a batch of quantitatively packaged commodities. Only two aspects are in line with the " Only in accordance with the provisions of the Measures for the Supervision and Administration of the Measurement of Quantitative Packaged Commodities can qualified conclusions be made. Inspection of the actual content of a single piece of quantitatively packaged goods alone cannot make a pass or fail conclusion.

(2) Article 5 of the “Measures for the Supervision and Administration of Quantitative Packaging Commodities” stipulates that the labeling of the net content of quantitative packaging commodities consists of “net content” (Chinese), numbers and legal units of measurement (or counting units in Chinese). composition. "Net content" should not be replaced by "content", the legal unit of measure should be written correctly, so

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