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Standards [CURRENT]

UNE 22147

IRON ORES. DETERMINATION OF HYGROSCOPIC MOISTURE IN ANALYTICAL SAMPLES. GRAVIMETRIC METHOD.
Edition 1990-12-24

Standards [CURRENT]

UNE 22315

VENTILATION DUCTS. ELECTRIC CONDUCTIVITY. TESTING METHOD. SPECIFICATIONS.
Edition 1985-12-15

Standards [CURRENT]

UNE 22330

COAL DUST EXPLOSIBILITY. TEST METHOD FOR DETERMINING THE MINIMUM IGNITION TEMPERATURE IN A LAYER.
Edition 1992-07-08

Standards [CURRENT]

UNE 22331

COAL DUST EXPLOSIBILITY. METHOD FOR SAMPLING
Edition 1990-05-18

Standards [CURRENT]

UNE 22333

COAL DUST EXPLOSIBILITY. METHOD FOR SAMPLE PREPARATION AND PRELIMINARY TEST
Edition 1990-05-18

Standards [CURRENT]

UNE 22335

COAL DUST EXPLOSIBILITY. TEST METHOD FOR DETERMINING THE MINIMUM EXPLOSIVE CONCENTRATION IN THE HARTMANN TUBE.
Edition 1992-07-08

Standards [CURRENT]

UNE 22336

COAL DUST EXPLOSIBILITY. TEST METHOD FOR DETERMINING THE MINIMUM IGNITION ENERGY.
Edition 1996-11-22

Standards [CURRENT]

UNE 22337

COAL DUST EXPLOSIBILITY. TEST METHOD FOR DETERMINING THE PRESSURE AND THE RATE OF PRESSURE RISE IN THE HARTMANN BOMB
Edition 1992-07-08

Standards [CURRENT]

UNE 22338

COAL DUST EXPLOSIBILITY. TEST METHOD FOR DETERMINING THE EXPLOSION'S PRESSURE AND THE RATE OF PRESSURE RISE IN THE 20 L SPHERICAL CHAMBER.
Edition 1996-11-22

Standards [CURRENT]

UNE 22339

COAL DUST EXPLOSIVITY. TEST METHOD FOR DETERMINING THE MINIMUM EXPLOSIVE CONCENTRATION IN THE 20 l SPHERICAL CHAMBER.
Edition 1996-11-22

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