The accuracy of determination of the pH of river waters :  results of Water Authority tests made for the Harmonised Monitoring Scheme of the Department ofthe Environment / 
by The Committee for Analytical Quality Control (Harmonised Monitoring) 
 - Marlow :  Water Research Centre,  1984 
 - 19p. 
 - Technical report;  TR 196 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water--Analysis<br/>Hydrogen-ion concentration<br/>Stream measurements