Russian standards PDF
Dissectors. Signal-to-noise ratio measurement method
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Motor vehicles. Fasteners. Weld bolts. Design and dimensions
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Environmental protection. Surface and ground water. General requirements for protection against contamination by mineral fertilizers
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Means of education. Electronic educational devices for children. General requirements
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Optics and photonics. Optical lenses. Design and dimensions
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Optics and photonics. Densitometers. Terms and definitions
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