LY/T 3205-2020Special bamboo charcoal flake (English PDF)

5.1 Sensory requirements

Black, no odor.

5.2 Common specifications are as follows.

--Length. 30 mm ~200 mm;

--Width. 15 mm ~50 mm.

Specifications and dimensions can also be agreed upon by both parties.

5.3 Physical and chemical performance indicators

Should meet the requirements of Table 1.

6.1 Sensory testing

Take an appropriate amount of the sample and place it in a clean, dry white porcelain dish. Under natural light, observe its color and state, and smell its smell.

6.2 Determination of moisture content

According to the provisions of GB/T 26913-2011 in 6.3.

6.3 Determination of resistivity

Carry out according to the provisions of 4.3 in GB/T 24525-2009.

6.4 Determination of ash content

According to the provisions of GB/T 26913-2011 in 6.4.

6.5 Determination of fixed carbon content

According to the provisions of GB/T 26913-2011 6.6.

6.6 Determination of iodine value content

According to the provisions of GB/T 12496.8.

6.7 Determination of dissolved pH

According to LY/T 1929-2010, 4.6.

6.8 Determination of total arsenic content

According to the provisions of GB 31604.49.

6.9 Determination of lead content

According to the provisions of GB 31604.49.

6.10 Determination of cadmium content

According to the provisions of GB 31604.49.

6.11 Determination of chromium content

According to the provisions of GB 31604.49.

6.12 Determination of water vapor adsorption capacity

According to BB/T 0049-2008, 6.1.

6.13 Decolorization test

According to the provisions of GB 31604.7.

6.14 Determination of the increase in dissolved potassium, calcium, sodium, magnesium and other trace elements in water According to the provisions of GB 5750.11.

7.1 Batching rules and sampling plan

7.1.1 Batching rules

Products of the same specifications and grades produced with basically the same raw materials and production conditions as a batch are sampled according to the batch number.

7.1.2 Sampling plan

Bamboo chip charcoal is randomly selected from the same batch, and the amount of each sample is not less than 1.0 kg. Divide into two parts into a clean and dry sealed bag, paste Label. The label content includes. sample name and sample number, production team, batch number, grade, sampling date, sampling person and other information. One One bag is used for testing and one bag is used for re-inspection.

7.2 Product inspection

It is divided into factory inspection and type inspection.

7.2.1 Factory inspection

Each batch of products should undergo factory inspection. The inspection items of bamboo charcoal are mainly sensory, moisture content, resistivity, ash, Fixed carbon, total arsenic, lead, cadmium, chromium, iodine value, increase in trace elements, water vapor adsorption capacity, dissolution pH value and decolorization.

7.2.2 Type inspection

The inspection items are all items specified in this standard. Type inspection should be carried out in one of the following situations.

a) When production is suspended for a long time and production is resumed;

b) Changes in raw materials or changes in the main production process may affect product quality;

c) When the national market supervision and management agency put forward a requirement for type inspection;

d) When there is a big difference between the factory inspection and the last type inspection.

7.3 Comprehensive judgment

When the product's sensory requirements, specifications, dimensions, and physical and chemical performance test results meet the corresponding technical requirements, the product is deemed qualified, otherwise the product is deemed qualified.

Is unqualified.

8.1 Logo

The product mark should include the following content. product name, grade, production date, inspector code, or stamped according to the provisions of the supply contract Product identification, etc.

8.2 Packaging

The name of the manufacturer, place of origin, date of manufacture, product name, quantity, grade, performance standard, contact information, etc. should be on the packaging label.

Products should be sealed and packaged, free from extrusion and pollution, and product packaging materials should comply with national food safety standards.

8.3 Storage and transportation

The product should be stored in a cool, ventilated and dry place, away from fire; prevent damage during transportation, and should not be exposed to rain and sun, and should not Store and transport together with toxic and hazardous materials.