A series of color test are carried out to determine the influence of developing result at different time after preparing the acetylacetone on formaldehyde content measuring.
We shifted off the formaldehyde in order to manufacture green food-Yinpu beer. We've got good effect from the test of brewing tannin increasing the beer stability.
Test method, GB/T2912.1—1998 Textiles-Determination of formaldehyde-Part 1: Free and hydrolyzed formaldehyde(Water extraction method), was taken on(initiated?) .