Reciprocating internal combustion engines. Safety requirements for design and construction of engines for use in potentially explosive atmospheres. Part 2. Group I engines for use in underground workings susceptible to fired amp and/or combustible dust
State system for ensuring the uniformity of measurements. State primary standard and all-union verification schedule for means measuring electrical capacity
Microbiology of food and animal feeding stuffs. Polymerase chain reaction (PCR) method for the detection of food-borne pathogens. General requirements and definitions
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