Water quality - determination of biochemical oxygen demand after n days - method for undiluted samples 水质.数天后生化需氧的测定.非稀释样品法
3.
Standard test method for determining aerobic biodegradation of plastic materials under controlled composting conditions 在受控合成条件下测定塑料材料需氧的生物降解的标准试验方法
4.
Water quality - determination of biochemical oxygen demand after n days - dilution and seeding method with allylthiourea addition 水质.数天后生化需氧的测定.加入烯丙基硫醇的稀释和接种法