70 national and interstate standards came into force in the beginning of August.
There are series of documents on design and operation of subsea production systems of petroleum, standards on polymeric materials and standards on providing security for the facilities of medical institutions among them.
We will elaborate on several documents, which came into force for the first time.
GOST R 59171-2020 «Automobile roads of general use. Blocks of foamed polystyrene (EPS blocks). Specifications». Standard is distributed on blocks produced of expandable polystyrene with antipyrene in block forms. These blocks are applied on automobile roads of general use during construction and repairs of lightweight and combined embankments, constructions on the soft grounds and during construction of retaining walls and engineering structures.
Blocks are produced by the method of pellet sintering of expanded polystyrene or one of its copolymers ensuring conformity assessment of geometrical and stress-related characteristics.
GOST R 58657-2019 «Tractors, tractor trailers and self-propelled machines. Identification number designation system. Technical requirements».
This standard sets general requirements for content and location of identification number of tractors, snow and swamp-going vehicles and self-propelled machines dedicated for agricultural works, animal breeding, poultry farming, feed production, ameliorative works and trailers for them.
Identification number should consist of three sections: identification code of the manufacturer, descriptive and indicative parts.
Arabic numbers such as 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 and capital letters of Latin alphabet such as A, B, C, D, E, F, G, H, J, K, L, M, N, P, R, S, T, U, V, W, X, Y, Z should be used in an identification number of a vehicle for its application.
Use of letters I, O, Q is prohibited.
GOST R 59507-2021 «Milk and milk raw material. Determination of residual content of antibiotics and drugs by immunological methods»
This standards sets:
• immunofluorescence method of determination of antibiotics and medications with the application of immunochemistry analyzer;
• determination of residual content of antibiotics with the application of a competitive immunoenzyme method in the following variation range of weight concentration of antibiotics - from 2,00 to 100,00 mcg/dm3;
• immunochromatographic method of determination of residual content of antibiotics and drugs.
If the measurement can not be carried out just after the samples collection of a product, storage period of the product in the fridge with the temperature of 4 (± 2) °С should not last longer than 36 hours according to this standard.
The ambient air temperature should vary from 10 °C to 30 °C; relative humidity should be 50%; atmospheric pressure should be 96 kPa while carrying out of measurements in the laboratory.