Industrial Acetanilide (4)

4.

4.

Weigh 1g of sample (accurate to 0.

4.

The difference between the two parallel determination results is not more than 0.

4.

4.

Weigh 4g sample (accurate to 0.

4.

The mass percentage X ₃ of ash in industrial acetanilide is calculated according to formula (3):

In the formula: m ₁ -the mass of ash and crucible after ignition, g;

m ₂ —the mass of the crucible, g;

m—the mass of the sample, g

Take the arithmetic mean as the test result

4.

The difference between the two parallel determination results is not more than 0.

5 Inspection rules

5.

5.

5.
3 All technical index items listed in this standard are type inspection items
.
Under normal production conditions, the ash content is inspected every half a month, and the other items are factory inspection items
.

5.
4 The batch of industrial acetanilide does not exceed 5t
.

5.
5 Sampling method:

5.
5.
1 The number of sampling units shall be selected according to the provisions of GB6678
.

5.
5.
2 Use a stainless steel sampler to insert 2/3 of the depth of the package along the center line of the package to take a sample, each not less than 100g, place it in a clean and dry enamel tray, mix evenly, and divide it by quarters.
500g, evenly divided into two clean and dry brown ground-mouth reagent bottles, with labels affixed to the bottles, indicating the sample name, manufacturer name, production date or batch number, sampling date and sampler’s name
.
One bottle is sent to the quality inspection department for inspection, and the other bottle is kept for three months for future reference
.

5.
6 If an indicator of the inspection result does not meet the requirements of this standard, it shall be re-sampled and inspected from twice the amount of the package
.
Even if only one index does not meet the requirements of this standard, the whole batch of products cannot be accepted
.

5.
7 When there is a dispute between the supplier and the buyer over the quality of the product, the two parties shall negotiate a national arbitration institution to conduct arbitration in accordance with the provisions of this standard
.

5.
8 The rounding value comparison method is used to determine whether the test data meets the standard requirements, and the rounding value comparison method is adopted
.

6 Marking, packaging, transportation and storage

6.
1 The inner packaging of industrial acetanilide is a polyethylene blown film bag with a thickness of not less than 0.
05mm
.
The outer packaging is a type B plastic woven bag
.
The net weight of each bag is 25kg or 50kg
.

6.
2 Each package should be accompanied by the quality certificate specified in 5.
1
.

6.
3 The outer packaging should be painted with a firm logo, indicating the name of the manufacturer, product name, product grade, production date or batch number, net weight, and the symbol of "Forbidden Hand Hook" in Figure 2 of GB191
.

6.
4 Industrial acetanilide can be transported by various means of transportation
.
Avoid sun and rain during transportation and storage
.
It should be kept away from moisture and not close to the fire source
.

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