Gas tightness of equipment and apparatus for gas welding, cutting and applied processes. Permissible rates of external gas leakage and measuring procedures
Benzene hydrocarbons and allied products. Chromatographic method of determination of main substance and impurities content in benzene, toluene and xylene
Microbiology of food and animal feeding stuffs. Horizontal method for the enumeration of β-glucuronidase-positive Escherichia coli. Part 1. Colony-count technique at 44 °C using membranes and 5-bromo-4-chloro-3-indolyl β-D-glucuronide
