Normas ISO

Milk products -- Enumeration of presumptive Lactobacillus acidophilus on a selective medium -- Colony-count technique at 37 degrees C

Connections for general use and fluid power -- Ports and stud ends with ISO 261 threads with elastomeric or metal-to-metal sealing-- Part 4: Dimensions, design, test methods and requirements for external hex and internal hex port plugs

Water quality -- Determination of chromium(VI) -- Method using flow analysis (FIA and CFA) and spectrometric detection

Water quality -- Selection of tests for biodegradability

Iron ores -- Determination of sodium -- Flame atomic absorption spectrometric method

Corrosion of metals and alloys -- Classification of low corrosivity of indoor atmospheres-- Part 3: Measurement of environmental parameters affecting indoor corrosivity

Steel ball valves for general-purpose industrial applications

Door end security

Iron ores -- Determination of hygroscopic moisture in analytical samples -- Gravimetric, Karl Fischer and mass-loss methods