Industrial methyl chloride (2)

4 Test method

The reagents and water used in this standard are all analytical reagents and tertiary water specified in GB/T6682

The standard titration solutions, preparations and products required in the test shall be prepared in accordance with GB/T601 and GB/T603 unless other requirements are specified

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Take about 10 mL of the sample cooled to the degree of non-boiling in a test tube with an inner diameter of about 15 mm

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To dibutyl phthalate (DBP) and polyethylene glycol 2000 (PEG-2000) in methylene chloride mixed stationary phase separation of the components, detected by a thermal conductivity detector, to calculate the area normalization chloride content

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Figure 1 Schematic diagram of the sampling device process

The pore size of the stainless steel sintered sand core in the metal filter is 2 μm to 4 μm to filter out possible mechanical impurities in the sample and protect the injection valve

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3 Sampler: 250mL～1000mL stainless steel cylinder with polished inner wall.
The structure size is shown in Figure 2
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Figure 2 Sampler

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4 The structure of the sampler pipe is shown in Figure 3
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Figure 3 Sampler catheter

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5 Chromatographic column: a stainless steel packed column with a length of 3m and an inner diameter of 3mm～4mm
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6 Chromatographic data processor or chromatographic workstation
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Related links: Industrial methyl chloride (1)