What is BS 1647-1- pH scale about?
BS 1647 discusses pH measurement. BS 1647-1 is the first part of the BS 1647 multi-series and discusses specifications for pH scale. BS 1647-1 specifies requirements for a pH scale in terms of a single reference value standard aqueous solution of potassium hydrogen phthalate with a molality of 0.05 mol/kg, and the (theoretical) slope factor.
This pH scale is appropriate for pH measurements of aqueous solutions at temperatures in the range of 0 °C to 95 °C using, for calibration, the operational standard solutions specified in Part 2 of this standard.
Who is BS 1647-1- pH scale for?
BS 1647-1 on specification for pH scale is useful for:
- Chemical manufactures
- Chemical engineers
- Scientists
- Inspection personnel
Why should you use BS 1647-1 - pH scale?
pH is a measure of how acidic/basic water is. The range goes from 0 - 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base. pH is really a measure of the relative amount of free hydrogen and hydroxyl ions in the water.BS 1647-1 provides you with the definitions required for the functionality of this standard.
BS 1647-1 provides you with a pH scale, reference value standard solution and slope factor. BS 1647-1 helps you to ensure that, when different workers refer to a stated value of pH to two or more decimal places, they mean the same thing to within 0.01 in the temperature range 0 °C to 60 °C and approaching 0.01 at higher temperatures.
