HJ 2503-2011 标准详情

General requirements of protection for space environmental effects on spacecraft

Common test methods for insulating and sheathing materials of electric and optical cables - Part 41:Methods specific to polyethylene and polypropylene compounds - Resistance to environmental stress cracking - Measurement of the melt flow index - Carbon black and/or mineral filler content measurement in polythylene by direct combustion - Measurement of carbon black content by thermo gravimetric analysis(TGA)- Assessment of carbon black dispersion in polyethylene using a microscope

Explosive atmospheres—Explosion prevention and protection—Part 1： Basic concepts and methodology

Classification of corrosion environments for power transmission and transformation equipment

Classification of environmental conditions—Environmental conditions appearing in nature—Temperature and humidity

Guidelines for establishing soil environmental criteria of cadmium for rice product safety

Agricultural and forestry machinery—Environmental requirements for sprayers—Part 3: Sprayers for bush and tree crops

Classification of environmental conditions—Classification of groups of environmental parameters and their severities—Part 11: Drawing the distribution map of environmental severities

Environmental information geophysics technical guide for site