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ISO 6619:1988 Petroleum products and lubricants — Neutralization number — Potentiometric titration method
ISO 7278-2:1988 Liquid hydrocarbons — Dynamic measurement — Proving systems for volumetric meters — Part 2: Pipe provers
ISO 3171:1988 Petroleum liquids — Automatic pipeline sampling
ISO 4267-2:1988 Petroleum and liquid petroleum products — Calculation of oil quantities — Part 2: Dynamic measurement
ISO 9441:1988 Steel — Determination of niobium content — PAR spectrophotometric method
ISO 8050:1988 Ferronickel ingots or pieces — Sampling for analysis
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