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Determination of diethylene glycol and triethylene glycol in industrial ethylene glycol by gas chromatography (3)

 Last Update: 2021-12-13
 Source: Internet
 Author: User

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8 Presentation of results

Take the arithmetic average of two repeated determinations as the analysis result, and take the mass percentage concentration as the unit, and should be accurate to 0.

The precision data of this method was determined in June 1991 by the inter-chamber precision test (concentration test) conducted by 10 laboratories on 5 concentration level samples

In the same laboratory, the same operator uses the same test method and instrument to perform two repeated measurements on the same sample.

In any two different laboratories, by different operators, using different instruments, at different or the same time, the difference between the two results of the same sample should meet the value specified in Table 2 (the control level 95%)

Table 2 Method precision

9 Test report

The test report should include the following:

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