DB34/T 3916-2021 标准详情

Environmental test methods for civil small and light unmanned aircraft system—Part 4: Temperature and altitude test

Vibration generating machines - Guidance for selection - Part 1: Equipment for environmental testing

Environment--Determination of methylmercury--Gas chromatography

Explosive atmospheres—Part 35：Classification of areas for explosive dust atmospheres

Technical specification for intelligent identification detection management system for food processing and production environment

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

Explosive atmospheres—Part 1：Equipment—General requirements

Rare earth environmental barrier coating material—Ytterbium silicate powder

Environmental test methods for oceanographic instruments—Part 6：Damp heat, steady state

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

General requirements on environmental information of electrical and electronic products

Test guidelines on environmental safety assessment for chemical pesticides—Part 11: Silkworm acute toxicity test

Road vehicles—Environmental conditions and testing for electrical and electronic equipment for drive system of electric propulsion vehicles—Part 4: Climatic loads