State system for ensuring the uniformity of measurements. Air ion composition measurements. Method of measuring volume density of electric charge of air and air ion concentration using aspiration capacitor
Occupational safety standards system. Clothing and equipment for protection against heat. Test method for convective heat resistance using a hot air circulating oven
System of standards in geological exploration of the entrails of the Earth. Report on geological study of the entrails of the Earth. General requirements for content and presentation
