O

Octane Number, Motor Method

ASTM D 2700

Octane Number, Research (Addition)

ASTM D 2699

Odor in Water

ASTM D 1292

Odor of Volatile Solvents and Diluents

ASTM D 1296

Oil & Grease - Extraction for Sludge & Sediment

EPA 9071A

Oil and Grease Content, Gravimetric

EPA 413.1

Oil and Grease Content, Sludge by Extraction

EPA 1664

Oil and Grease Content, Total Recoverable - Gravimetric

EPA 9070

Oil and Grease Content, Total Recoverable - referral to use Method 1664

EPA 9070A

Oil Content of Petroleum Waxes

ASTM D 721

Oil Separation from Lubricating Grease (Conical Sieve Method)

ASTM D 6184

Oil Separation from Lubricating Grease, Bleed

ASTM D 1742

Oil Spill Identification by Gas Chromatography and Mass Spectrometry

ASTM D 5739

Oil Spill Source Identification by Gas Chromatography-Mass Spectrometry (GC-MS)

ASTM D 5739.a

Olefin Content by Supercritical Fluid Chromatography

ASTM D 6550

Olefins in Spark-Ignition Engine Fuels by Multi-dimensional Gas Chromatography

ASTM D 6296

Organic Chloride in Aromatic Hydrocarbons by Microcoulometry

ASTM D 5808

Organic Compounds in Wastewater by GC-MS

EPA 625

Organic Compounds in Water by Gas Chromatography and Mass Spectrometry (GC-MS)

ASTM D 4128

Organic Compounds, Purgables, by GC-MS

EPA 624

Organochlorine Pesticides in Water by Capillary Column Gas Chromatography

ASTM D 5812

Oxidation Induction Time of Hydrocarbons by Differential Scanning Calorimetry

ASTM E 1858

Oxidation Induction Time of Lubricating Greases by Pressure Differential Scanning Calorimetry

ASTM D 5483

Oxidation Inhibitor in Insulating Oil by Gas Chromatography

ASTM D 4768

Oxidation Inhibitor in Insulating Oil by Infrared Absorption

ASTM D 2668

Oxidation of Gear Oils

ASTM D 5763

Oxidation Onset Temperature of Hydrocarbons by Differential Scanning Calorimetry

ASTM E 2009

Oxidation Reduction Potential

Std M 2580

Oxidation Stability

EN 14112

Oxidation Stability by Modified Rotating Pressure Vessel

ASTM D 2272.b

Oxidation Stability by Rotating Pressure Vessel Method, RPVOT (previously RBOT)

ASTM D 2272.a

Oxidation Stability of Lubricants by Thin-Film Oxygen Uptake (TFOUT) Catalyst B

ASTM D 7098

Oxidation Stability of Used Lubricants by FT-IR

ASTM D 7214

Oxidation Stability, Automotive Engine Oils by Thin Film Oxygen Uptake, TFOUT

ASTM D 4742

Oxidation Stability, Distillate Fuels

ASTM D 6468

Oxidation Stability, DuPont, including Color

DuPont F-21

Oxidation Stability, Extreme Pressure Lubricating Oils

ASTM D 2893

Oxidation Stability, Inhibited Steam Turbine Oils

ASTM D 943

Oxidation Stability, Light Fuel Oils, 16 hr

ASTM D 2274

Oxidation Stability, Lubricating Grease, Oxygen Bomb Method (Oxy Bomb)

ASTM D 942

Oxidation Stability, Mineral Insulating Oil, 164 hr

ASTM D 2440.a

Oxidation Stability, Mineral Insulating Oil, 72 hr

ASTM D 2440.b

Oxidation Stability, Mineral Insulating Oils, RPVOT (previously RBOT)

ASTM D 2112

Oxidation Stability, Potential Residue Method

ASTM D 873

Oxidation Test for Hydraulic and Turbine Oils using the Universal Oxidation Test Apparatus

ASTM D 5846

Oxidation Test for Turbine Oils, High Temperature Universal Method

ASTM D 6514

Oxygen, Dissolved, by Membrane Electrode

EPA 360.1

Oxygenates and Paraffin, Olefin, Naphthene, Aromatic (O-PONA) Hydrocarbon Types in Low-Olefin Spark Ignition Engine Fuels by Gas Chromatography

ASTM D 6293

Oxygenates in Gas by Gas Chromatography

ASTM D 5599

Oxygenates, Benzene, Toluene, C8-C12 Aromatics in Finished Gasoline by GC

ASTM D 5986