6353
The Tg of the product specimens was found to be 158 °C , which is 13 °C higher than commercial PEEK as measured by DSC .
 Tg, be, PEEK, as, DSC
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: manufacturing standard, machanical property, manufacturing process, material, engineering feature, process parameter, machine or equipment, application, process characterization, enabling technology, biomedical, concept or principle 
Text: {0} 
Answer:
 Tg, be, PEEK, as, DSC