RELIABILITY TESTING. COMPLIANCE TESTS PLANS FOR SUCCESS RATIO.
Edition 1996-08-12

MECHANICAL PROPERTIES OF ROCKS. STRENGTH DETERMINATION TESTS. PART 3: MODULES OF ELASTICITY (YOUNG) AND POISSON'S RATIO DETERMINATION.
Edition 1990-12-24

CARPETS. DETERMINATION OF MEASURED SURFACE PILE DENSITY AND MEASURED PILE FIBRE VOLUME RATIO.
Edition 1974-05-15

SURFACE ACTIVE AGENTS. SODIUM AND POTASSIUM SILICATES TO BE USED AS RAW-MATERIALS IN DETERGENT FORMULATIONS. CALCULATION OF THE RATIO SIO2/NA2O OR SIO2/K2O
Edition 1982-01-15

ESTIMATION OF THE RATIO OF TWO VARIANCES OR OF TWO STANDARD DEVIATIONS
Edition 1978-02-15

DIRECT-CURRENT RESISTIVE VOLT RATIO BOXES.
Edition 1996-06-24

DIRECT-CURRENT RESISTIVE VOLT RATIO BOXES
Edition 1999-12-16

MEDICAL ELECTRICAL EQUIPMENT. CHARACTERISTICS OF ELECTRO-OPTICAL X-RAY IMAGE INTENSIFIERS. PART 6: DETERMINATION OF THE CONTRAST RATIO AND VEILING GLARE INDEX.
Edition 1996-11-24

Unbound and hydraulically bound mixtures - Part 47: Test method for the determination of California bearing ratio, immediate bearing index and linear swelling; German version EN 13286-47:2021
Edition 2022-01

Pressure Ratio Instruments
Edition 2001-07-01