1665
Amongst the different procedures evaluated , the use of a SDS 0 . 1 % PBS solution to remove the sticky and greasy test material prior to the normal washing procedures was found to be the most suitable adaptation to ensure efficient removal of greasy and sticky in - house controls without affecting the results of the negative control .
 Chemical: SDS
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: SDS