1. Choose a strong plastic bag or paper bag, choose a suitable bag according to the sample size, and ensure the quality of the bag meets the requirements.

2. Mark the sample number, sample name, sampling date, sampling personnel and other related information on the packaging bag, so that the receiver can identify and manage it.

3. Put the sample into the bag, which should be dry and free of any moisture, so as to avoid deformation and cracks during transportation.

4. Seal the mouth of the bag, you can choose to seal it with tape or rope to ensure that the sample will not fall out during transportation.

5. Put the bag containing the sample into a sturdy paper box or plastic box, and the box should be filled with some cushioning materials, such as foam plastic or bubble film, to protect the sample from being squeezed and shaken.

6. Mark the address and contact information of the sender and the recipient on the box for the postman to deliver.