GOST 8.135-2004 State system for ensuring the uniformity of measurements. Weight amouhts of the standard materials for preparation of the buffer solutions - operational pH standards of 2-nd and 3-rd classes. The technical and the metrological characteristics. Methods of *, 2023-12-22 Update
GOST 8756.0-1970 Canned food products. Sampling and preparation of samples for test
GOST 9147-1980 Laboratory porcelain ware and apparatus. Specifications*, 2023-12-22 Update
GOST 19182-1989 history
2014GOST 19182-2014 Preserved from fish. Methods of buffer value determination
1989GOST 19182-1989 Preserved fish. Methods of buffer value determination