Industrial Hexachloroethane (4)

4.

4.

The sample was dissolved in absolute ethanol , filtered with a glass sand crucible, dried to a constant weight, and the alcohol-insoluble content was calculated

4.

Absolute ethanol

4.

Glass sand crucible: filter plate pore size 15um ~ 40um, capacity 30mL

4.

Weigh about 10g of the sample (accurate to 0.

4.

The alcohol-insoluble content X ₃ expressed in mass percentage is calculated according to formula (3):

In the formula: m ₁ ——the mass of the glass sand pot with filter residue, g;

m ₀ ——The mass of the glass sand crucible: g;

m—the mass of the sample, g,

Take the arithmetic mean of the two parallel determination results as the determination result

5 Inspection rules

5.

5.

5.

5.

5.
5 The test result is judged according to the rounding value comparison method in GB/T1250
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If one of the inspection results does not meet the requirements of this standard, double the number of packaging units should be sampled for re-inspection
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Even if only one index does not meet the requirements of this standard as a result of the re-inspection, the whole batch of products is unqualified
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6 Marking, packaging, transportation and storage

6.
1 Industrial hexachloroethane packaging containers should have firm and clear signs, including product name, trademark, manufacturer name, factory address, net content, batch number, number of this standard, and “fear of the sun” and “fear of rain” as specified in GB191 "Sign
.

6.
2 Hexachloroethane for industrial use should be packed in polyethylene plastic bags lined with outer bags or barrels
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The net content per bag or barrel is 25kg or 50kg, or packaged according to user requirements
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6.
3 Prevent heat, moisture and rain during transportation
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6.
4 Hexachloroethane for industrial use should be stored in a cool, ventilated and dry place
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7 Security

Hexachloroethane for industrial use can easily cause combustion when exposed to open flames and high heat
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Reacts with oxidants, causing burning hazard
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Touching the skin, it is easily absorbed through the skin or swallowed or inhaled dust vapor can cause poisoning
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