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UNE 40407:1981 TEXTILE FIBERS. CONTROL OF LONGITUDINAL RETRACTION EXPERIMENTED BY CHEMICAL FIBERS IN THERMIC TREATEMENTS
UNE 18110-2:1981 CONVEYOR CHAINS FOR AGRICULTURAL MACHINERY AND TOOTHED WHEELS. THOOTHED WHEELS.
UNE 55504-1:1981 SURFACE ACTIVE AGENTS. ANALYSIS OF TECHNICAL SODIUM SEC-ALKYSULPHATES. SCOPE
UNE 55504-2:1981 SURFACE ACTIVE AGENTS. ANALYSIS OF TECHNICAL SODIUM SEC-ALKYLSULPHATES. DETERMINATION OF PETROLEUM ETHER EXTRACTABLE PRODUCTS
UNE 55511-1:1981 SURFACE ACTIVE AGENTS. ANALYSIS OF TECHNICAL SODIUM PRIM-ALKYLSULFATES. SCOPE
UNE 55511-2:1981 SURFACE ACTIVE AGENTS. ANALYSIS OF TECHNICAL SODIUM PRIM-ALKYLSULFATES. DETERMINATION OF CONTENT OF PETROLEUM ETHER EXTRACTABLE PRODUCTS
UNE 55511-4:1981 SURFACE ACTIVE AGENTS. ANALYSIS OF TECHNICAL SODIUM PRIM-ALKYLSULFATES. DETERMINATION OF THE CONTENT OF SODIUM CHLORIDE
UNE 17108:1981 STEEL SCREWS AND NUTS. TIGHTENING TORQUES.
UNE 51601:1981 INDUSTRIAL LIQUID LUBRICANTS. UNE VISCOSITY CLASSIFICATION
UNE 21056:1981 GROUNDING ELECTRODE. COUPLING CYLINDRICAL BARS OF STEEL-COPPER.
UNE 20636-3:1981 HIGH FIDELITY AUDIO EQUIPMENT AND SYSTEMS. MINIMUM PERFORMANCE REQUIREMENTS. RECORD PLAYING EQUIPMENT AND CARTRIDGE