Determination of fluid category 2. Water in fluid category 1 whose aesthetic quality is impaired owing to: 1  a change in its temperature; or. 2  the presence of substances or organisms causing a change in its taste, odour or appearance, including water in a hot water distribution system.
Credibility is defined as the quality or power of inspiring belief. Credible sources, therefore, must be reliable sources that provide information that one can believe to be true. It is important to use credible sources in an academic research paper because your audience will expect you to have backed up your assertions with credible evidence.
1 Insider research is often discussed in contrast to outsider research; based on the definition offered by Merton, this would be research that is undertaken by those who do not have a priori knowledge of the community under study, nor its members.t is argued that the perception of the insider researcher is narrowed, as too much is familiar; research at home limits the analysis of social and cultural structures and patterns (Aguiler, 1981); and the researcher may become normalized to an extent that threatens to impede analysis.