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- The measurement and test apparatus of limiting oxygen concentration (LOC) of combustible dusts were introduced with the LOC of some conventional combustible dusts given. 根据气体均匀混合假设，导出了采用加压或抽真空惰化情况下惰化次数的计算方法和采用通流惰化情况下惰化时间的计算公式。
- Keywords inerting;dust explosion;explosion prevention;limiting oxygen concentration;pulverized coal;drying; 惰化;粉尘爆炸;爆炸防护;极限氧含量;煤粉;干燥;
- limiting oxygen concentration 极限氧含量
- Check oxygen concentration by a refractometer. 用折射仪测量一下氧气的浓度。
- A large increase in the limiting oxygen index(LOI) value were observed by adding nano TPP to PP. 加入聚丙烯中,发现极限氧指数有比较大的提高。
- Aerotaxis (aerotactic movement) A TAXIS in response to an oxygen concentration gradient. 趋氧性:一种对氧浓度梯度产生回应的排序。
- The influence of IFR contents and the ratio of MP and PER on limiting oxygen index(LOI) and UL94 rating of EVA/IFR composites has been studied. 采用氧指数法和垂直燃烧法研究了MP和PER不同配比对EVA阻燃效果的影响。实验结果表明,MP和PER的配比不同对体系的阻燃有很大影响。
- The sensitivity characteristics are influenced by the variation in oxygen concentration. 氧气浓度的变化对传感器输出有较大影响。
- The model 625 analyser is designed to monitor the dissolved oxygen concentration in boiler feed-water and other aqueous solution. 625型分析仪用来监视锅炉进水和其它水溶液中溶解氧的浓度。
- An apparatus for maintaining an infant, especially a premature infant, in an environment of controlled temperature, humidity, and oxygen concentration. 早产婴儿保育箱一种保育婴儿的器具，尤指对早产婴儿，其温度、湿度与集中供氧都得到控制
- For the ambient oxygen concentration greater than 17 % the ignition and transition to flame spread all are achievable. 外界合氧浓度人于17%25燃料皆可引燃及过渡至火焰传播。
- Firstly, limit oxygen index test with MF-AFR fiber, methyl cellulose and polymer fiber testified that MF-AFR fiber has the flame-retarded function. 首先测试了MF-AFR纤维、木质素纤维、聚合物纤维的极限氧指数和3种纤维沥青胶泥的极限氧指数，证明MF-AFR纤维具有阻燃性能，并通过TG-DSC试验分析了其阻燃机理。
- The effects of dose,acceleratory voltage and oxygen concentration on coatings curing process were studied. 以低能电子束处理多种配方的涂料,研究了辐射剂量、加速电压和氧气浓度对涂料固化性能的影响。
- The minimum permissible oxygen concentration for unprotected personnel is 19.5%, while the maximum is23.5%. 对于没有受到保护的人来说，允许的最小氧浓度是19.;5%25;最大是23
- It studied the inflaming retarding and smoke suppressing mechanisms through the limiting oxygen index(LOI),the char yield test,smoke density rating(SDR),maximum smoke density(MSD),and SEM. 通过极限氧指数(LOI)、剩炭率、烟密度等级(SDR)和最大烟密度(MSD)的测定以及用电子扫描显微镜(SEM)对燃烧后所生成炭层的观察,探讨了协同体系阻燃抑烟的机理。
- OSHA has established 19.5% oxygen concentration as the minimum for working without supplied air. OSHA确定19.;5%25作为没有补充空气情况下工作时氧的最小浓度。
- Char yield of curing product of BAPP and epoxy resin is higher to that of DDM and limiting oxygen index (LOI) of curing product of BAPP and epoxy resin is 34. The effect of BAPP by glass state temperature of curing product of epoxy resin is little. 与DDM的环氧固化产物相比较,BAPP与环氧树脂的固化产物有较高的成炭率,极限氧指数(LOI)为34,BAPP对固化产物的玻璃化温度影响不大。
- Species found in the profundal zone are adapted to withstand low oxygen concentration, low temperatures, and low pH. 在深水层发现的种类，能够适应海底低氧、低温及低pH环境。
- The limiting oxygen index(LOI) value of DFR/CP-treated polyester/cotton fabric is 25.0%,which is larger than that of DFR-treated polyester and CP-treated cotton,however,the flame retardance of the treated blend fabric is still not desirable. 试验结果表明;DFR/CP两步法整理涤棉织物的限氧指数(LOI)值为25.;0%25;阻燃效果并不理想。
- Polypropylene added with this IFR possessed excellent flame resistance properties. The experiment results show that the limiting oxygen index (LOI) , smoke density rank (SDR), and UL-94 of flame retarded PP are 33. 6, 44. 25,and UL94V-0. 以该阻燃剂掺入聚丙烯 中;阻燃效果显著;经测试阻燃聚丙烯的极限氧指数(LOI)为33.;6;烟密度等级(SDR)为44
