geopiet May 30, 2017:

Nitrozoaminy (właśc. N-nitrozoaminy) Nitrozoaminy (właśc. N-nitrozoaminy) – organiczne związki chemiczne, N-nitrozowe pochodne amin. - https://pl.wikipedia.org/wiki/Nitrozoaminy

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Non-volatile N-nitrosamines arc more difficult to identify and measure. However, the methodology for estimating the total N-nitrosamine content of malt (or beer) sample does exist⁷ and provides us with measurement of Apparent Total N-Nitroso Compounds (ATNC). In practice, NDMA levels in malts are now so low that their contribution to ATNC in beer can generally be ignored. - http://onlinelibrary.wiley.com/doi/10.1002/j.2050-0416.1994....

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geopiet May 30, 2017:

z kontroli jakości The industry standard for Apparent Total N-nitroso Compounds (ATNC) is 20 parts per billion (ppb) and for N-Nitrosodimethylamine (NDMA) 0.5 parts per billion (ppb) in beer (5 ppb in malt). - http://www.salsafood.co.uk/downloads/SALSA Beer Module Guida...

geopiet May 30, 2017:

z Wiki The previously called NOC (N-nitroso compounds) measured by Bingham's team in stools from red meat-fed volunteers were, according to Bingham and Kuhnle, largely non-N-nitroso ATNC (apparent total nitroso compounds), e.g., S-nitrosothiols and nitrosyl iron (as nitrosyl heme) - https://en.wikipedia.org/wiki/Nitroso#In_food