Russian standards PDF
Non-destructive testing. Ultrasonic testing. Examination for discontinuities perpendicular to the surface
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Leather. Physical and mechanical tests. Methods for determination of fogging characteristics
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Health informatics. Vocabulary for terminology systems
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State system for ensuring the uniformity of measurements. Optics and optical instruments. Field procedures for testing geodetic and surveying instruments. Part 1. Theory
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Leather. Method of Identification with microscopy
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Acoustics. Sound-scattering properties of surfaces. Part 1. Measurement of the random-incidence scattering coefficient in a reverberation room
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