The standard establishes a nomenclature of the main quality indicators of self-propelled and trailed scrapers, included in the technical specifications for research work as determined
GOST 4.121-1987 Referenced Document
GOST 14.205-1983 Technological efficiency of products design. Terms and definitions
GOST 17.2.2.01-1984 Nature protection. Atmosphere. Automobile diesels. Exhaust smoke opacity. Rates and methods of measurement
GOST 4.121-1987 history
1987GOST 4.121-1987 Product-quality index system. Scrapers. Nomenclature of indices