NZS 4402.3.3.1:1986 Methods of Testing Soils for Civil Engineering Purposes Part 3.3: Soil Chemical Tests - Determination of the pH Value Test 3.3.1: Standard Method (Electrometric)
1986NZS 4402.3.3.1:1986 Methods of Testing Soils for Civil Engineering Purposes Part 3.3: Soil Chemical Tests - Determination of the pH Value Test 3.3.1: Standard Method (Electrometric)