Standard Test Methods for pH of Water

Importancia y uso:

5.1 The pH of water is a critical parameter affecting the solubility of trace minerals, the ability of the water to form scale or to cause metallic corrosion, and the suitability of the water to sustain living organisms. It is a defined scale, based on a system of buffer solutions2 with assigned values. In pure water at 25°C, pH 7.0 is the neutral point, but this varies with temperature and the ionic strength of the sample.5 Pure water in equilibrium with air has a pH of about 5.5, and most natural uncontaminated waters range between pH 6 and pH 9.

Subcomité:

D19.03

Referida por:

D6851-20, D2035-19, D6764-02R19, C1662-24, C1733-21, D4195-23, D5988-18, D0887-13R22, D7715-12R21, D6807-17, D6469-24, D5526-18, D4582-23, C0375-22, D5338-15R21, D3739-19, D5091-23, D6276-19, D5128-14R22, E2169-22, D7237-18, D5464-16, D1067-16, D7149-05R21, C1926-23, D7714-11R21, D0887-13R22, D5071-06R21, D5128-14R22, D5975-17, D6731-22, C1285-21, D1291-17R23, D1067-16, D8006-24, D7517-19, D3306-21, D2187-17, D1783-01R20, D6469-24, D5615-23, D8294-21, D3342-22, D4584-05R22, D6569-23, D3375-18, D8039-16R23, C1663-24, D0513-16, D0513-16, E1600-23, D7237-18, E0800-20, G0202-12R20, D7356_D7356M-19, D6139-22, D5511-18, E2242-21, D5464-16, D4985-10R23, D3838-23, D0513-16, D6529-22, D7572-15R22, D5929-18, G0150-18R24, D8506-23, D8006-24, D7518-20, D5864-23, D5752-10R17, D2791-19, D1193-06R18, D1193-06R18, D5744-18R24, D1193-06R18, D7294-13R21, D1193-06R18, D1193-06R18, D6210-17, D7100-11R20, C1220-21, D7475-20, D6210-17

Volúmen:

11.01

Número ICS:

13.060.50 (Examination of water for chemical substances)

Palabras clave:

hydrogen ion concentration; pH; pH buffer solution;