BLINDS &#151;Water samples containing a chemical of known concentration given a fictitious company name and slipped into the sample flow of the lab to test the impartiality of the lab staff.
(Water samples containing a chemical of known concentration; given; a fictitious company name) Context(Water samples containing a chemical of known concentration given,List([13, 77))):(Water samples; containing; a chemical of known concentration)
Water samples containing a chemical of known concentration given,List([13, 77))
Water samples containing a chemical of known concentration Water samples
given containing
a fictitious company name
a chemical of known concentration