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Math

Course Pack: Foundational Math

Purity as a Decimal

Course Code: WWW-MAT-002
Old Course Code: 1001.2
Water/Wastewater/Dual: Dual
Course Pack: Foundational Math
Course Time (mins): 30
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Course Description

This module extends the discussion to educate the attendee about the conversion of given measurements into the units of measure required by the appropriate formula.

Learning Objectives

  1. Convert percentages and parts-of expressions to decimal format
  2. Translate purity, concentration, and assay values into usable units
  3. Avoid rounding and significant‑figure errors in conversions
  4. Apply conversions in dose and chemical strength problems

Agenda

  1. Percent, ppm, ppb, and decimal relationships
  2. Purity/assay conventions for common treatment chemicals
  3. Hands‑on conversion drills with feedback
  4. Applying converted values inside formulas
  5. Common pitfalls and quick‑check methods

Target audience

Water and wastewater operators, OITs, and technicians needing math refresh

Level

I, II

Learning material and method

Online on-demand

Assessment

Knowledge check and quiz (80% correct and above)

Instructor

John Hricko

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