Footnote

11 Suggested sources may include but are not limited to:

.1 The Handbook of Standard Methods for the Analysis of Water and Waste Water

.2 ISO standard methods

.3 UNESCO standard methods

.4 World Health Organization

.5 American Society of Testing and Materials (ASTM) standard methods

.6 United States EPA standard methods

.7 Research papers published in peer-reviewed scientific journals

.8 MEPC documents

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