Industrial p-chlorophenol (2)

4.

4.

4.

4.

4.

4.

Weigh 0.

4.

The p-chlorophenol content X expressed in mass percentage is calculated as follows:

In the formula: A _s -the peak area of ​​the internal standard;

A _i —the peak area of ​​p-chlorophenol;

m _s —the mass of the internal standard, g;

m—the mass of the sample, g;

f _si —The relative correction factor of p-chlorophenol and internal standard

Take the arithmetic average of the two parallel determination results as the determination result, and the difference between the two parallel determination results shall not exceed 0.

4.

The sampling amount is about 15g

Take the arithmetic average of the two parallel determination results as the determination result, and the difference between the two parallel determination results shall not exceed 0.

4.

The sampling amount is about 15g

Take the arithmetic average of the two parallel determination results as the determination result, and the difference between the two parallel determination results shall not exceed 0.
01%
.

5 Inspection rules

5.
1 Parachlorophenol shall be inspected by the quality inspection department of the manufacturer, and the manufacturer shall ensure that all technical indicators of the products delivered meet the requirements of this standard
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Each batch of factory products should be accompanied by a quality certificate in a certain format
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The quality certificate includes the following contents: product name, product grade, batch number, net weight, date of manufacture and number of this standard
.

5.
2 After receiving the p-chlorophenol, the user has the right to check and accept it in accordance with the provisions of this standard
.

5.
3 Sampling

5.
3.
1 The number of sampling units is selected in accordance with the provisions of Article 6.
6.
1 and Chapter 10 of GB/T6678
.

5.
3.
2 Sampling method: sampling according to the method specified in 2.
3.
1 of GB/T6679
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The sampling volume per barrel is not less than 20g, and the total sampling volume is not less than 200g
.

5.
4 After fully mixing the sample taken out, divide it into two clean and dry glass bottles, seal the mouth of the bottle, put a label on it, and indicate the product name, batch number, grade, sampling date and the name of the person who sampled it.

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One bottle is sent to the laboratory for inspection, and the other bottle is stored in a cool, dry place for 3 months for future reference
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5.
5 The test result is judged according to the rounding value comparison method in GB/T1250
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If there is an indicator that does not meet the requirements of this standard in the inspection results, samples should be taken from twice the amount of packaging units for re-inspection.
Even if only one indicator does not meet the requirements of this standard, the entire batch of products will be unqualified
.

5.
6 Industrial p-chlorophenol is based on the volume of products produced by each rectification vessel as one batch
.

5.
7 The product has been stored in the factory for more than half a year and should be re-inspected before leaving the factory
.

5.
8 When there is a dispute between the supplier and the buyer on the quality of the product, it shall be settled by both parties through consultation or arbitration by a national arbitration institution agreed by both parties
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6 Marking, packaging, transportation and storage

6.
1 The packaging container should be painted with a firm logo, which includes the name of the manufacturer, product name, trademark, product grade, product gross weight, net weight, product batch number and this standard number, as well as the 14 "drug" logo in accordance with GB190
.

6.
2 Industrial p-chlorophenol is packaged in clean and dry white iron drums or plastic drums, each with a net weight of 250kg, 200kg or 50kg
.

6.
3 Industrial p-chlorophenol should be stored in a ventilated and dry place to prevent exposure and moisture
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The transportation process shall comply with the regulations for the transportation of dangerous goods
.

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