The DSS laboratory provides the testing service items including moisture, ash, volatile matter, fixed carbon, carbon, hydrogen, nitrogen, sulfur, oxygen, gross calorific value, and net calorific value.

The solid biofuel sample should be dried, because if the sample is wet or has high moisture content, it will spoil or be moldy before testing. Moreover, the sample should be cut or ground into small pieces. Then, approximate 0.5 kg of the ground sample should be filled in the dried and closed container with the label of the sample title according to the information in the sample submission form.

The submission of the solid alcohol for fuel purpose at the Department of Science Service (DSS) can be classified into 2 cases:

• Case #1: The manufacturer needs the test result for requesting the TIS mark permission from Thai Industrial Standard Institute (TISI).
• Case #2: The manufacturer already has the TIS mark permission, but TISI needs to randomly check the quality of the product.

Both cases require the sample preparation as follow:

• Two sets of the sample (at least 500 grams per a set of sample; at least 2 containers per a set of sample) are required.
• The sample must be in the completely closed container to protect the evaporation of the sample.
• The label on the sample container indicates the title, mark, manufacturing date, and net weight of the sample.

The test items for the solid alcohol for fuel purpose include:

1. PS. 1. Regular service fee is a fee for the sample submitted from a regular client.
2. TISI service fee is a fee for the sample submitted from TISI.

The testing duration: Approximate 1 week after the sample submission, except the stability testing which is required approximate 6 months since the manufacturing date (according to the TIS requirement).