Investigation on mercury content in button batteries and the proposal of the limitation of mercury content;
扣式电池含汞量调查和汞限量的建议
The existing problems in releasing limitation standards of harmful substances from furniture in China were pointed out and countermeasures were given.
指出了目前我国家具中有害物质释放限量标准中存在的问题并提出了相应的改进措施。
Estimation of cadmium limits for soil environmental quality standard;
土壤环境质量基准中Cd限量指标的推算
The endangers and sources of free formaldehyde from indoor adornment materials are analyzed and limit, principle and method of determination of formaldehyde are emphatically discusse.
文章就室内装饰装修材料中游离甲醛的危害、来源进行了分析,重点论述了各种室内装饰装修材料中游离甲醛的限量及测定的原理、方法,以便人们正确控制室内装饰装修材料中的游离甲醛及其使用过程中释放的甲醛。
Limit test of residues from macroporous adsorptive resin in sudium aescinate;
七叶皂苷钠中大孔吸附树脂残留物限量检查研究
Study on improvement of the methods for limit test of heavy metals in distilled monoglycerides;
蒸馏单甘酯的重金属限量试验改进研究
Effects of soil acidification by tea plantation on fluoride and discussion of safety level of teafluoride;
茶园土壤酸化对氟的影响及茶叶氟安全限量的探讨
The safety level of coliforms for Ruditapes philippinarum in culture waters;
菲律宾蛤仔养殖水体中大肠菌群安全限量的研究
Based on the consideration that the limited aeration may strip hydrogen sulfide out and oxidize part of the sulfide into nontoxic elemental sulfur,limited aeration was introduced into the reactor later to reduce the inhibition.
考虑到空气对硫化氢的吹脱和对硫化物的氧化作用可能减轻硫化物对甲烷菌的抑制,本研究在厌氧反应器中引入限量曝气措施。