Quality control sample food of ethyl lactate in Baijiu

Number SHAM-129601 NameQuality control sample food of ethyl lactate in BaijiuProvided by Henan Detong Environmental Protection Technology Co., Ltd. (Zhongyuan Standard Material Center), the following is a detailed introduction of this quality control sample for reference only!

1. Sample preparation

This standard sample is Baijiu containing ethyl lactate, which is packaged in a brown glass bottle in a clean laboratory at room temperature (20+3) ° C and sterilized.

2. Traceability and value determination methods

The content standard value of this standard sample is based on the prepared value, and various effective analytical methods are used for quantity verification. By using preparation, measurement methods, and measuring instruments that meet the requirements of computational characteristics, ensure the traceability of the quality values of standard materials

Source.

3. Characteristic values and extended uncertainty

4. Homogeneity test and stability assessment

According to the JF1343 National Metrology Technical Specification (equivalent ISO Guide 35), random sampling was conducted on the packaged samples, and gas chromatography was used to perform uniformity testing and long-term stability tracking investigation on the standard substance. The results indicate that the homogeneity conforms to the F-test rule and the stability assessment is good. From the date of self determination of the quality value of this standard substance, the validity period is 12 months. The development unit will continue to track and monitor the stability of the standard substance. If any changes in the quantity value are found during the validity period, the user will be notified in a timely manner.

5. Packaging, Storage, and Use

Packaging: This standard substance is packaged in brown glass bottles, with a specification of 40ml. When carried or transported, it should be protected against breakage. Storage and use: Store at (4+4) ° C in a sealed and dark environment. Before use, the temperature should be kept constant until

( 20+3)。 C , Shake thoroughly to ensure uniformity. This standard sample should be used as soon as it is opened to avoid any changes in the relevant characteristics of the sample, and contamination should be strictly prevented during use.

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