首页 馆藏资源 舆情信息 标准服务 科研活动 关于我们
现行 ISO 21945:2020
到馆阅读
收藏跟踪
购买正版
Solid biofuels — Simplified sampling method for small scale applications 固体生物燃料.小规模应用的简化取样方法
发布日期: 2020-02-11
本文件描述了在小规模应用和储存中取样固体生物燃料的简化方法,包括取样计划和报告的准备。主要关注规模≤100吨的仓库。本文件适用于下列固体生物燃料: 1)可以使用勺子或管道取样的细粒(高达约10mm标称顶部尺寸)和规则形状的颗粒材料,例如锯末、橄榄核和木颗粒; 2)可以使用叉子或铲子取样的粗糙或不规则形状的颗粒材料(标称顶部尺寸高达200毫米),例如木屑、猪燃料和坚果壳; 3)手动拾取的大块(标称顶部尺寸200 mm以上)(例如木柴和煤球)。 如果本文件中描述的程序适用,本文件也可用于以上未列出的其他固体生物燃料。本文件规定了要使用的方法,例如,当要测试样品的水分含量、灰分含量、热值、堆积密度、机械耐久性、粒度分布、灰熔融行为和化学成分时。 此外,它描述了一种减少样本量的方法,并定义了样品处理和储存的要求。 注1:如果需要更高精度的分析结果,或者如果不确定本文件是否适用,可以使用ISO 18135。使用本文件中给出的增量数,分析结果的精密度可根据ISO 18135中给出的公式进行估算。 注2颗粒自然会产生一氧化碳和二氧化碳废气。如果对颗粒进行采样,请在采样过程之前和期间在容器、筒仓或棚子等密闭空间中检查CO、CO2和O2水平,并让另一个人在入口处待命。
This document describes simplified methods for taking samples of solid biofuels in small scale applications and storages including preparation of sampling plans and reports. The main focus is on storages with a size of ≤100 t. This document is applicable to the following solid biofuels: 1) fine (up to about 10 mm nominal top size) and regularly-shaped particulate materials that can be sampled using a scoop or pipe, e.g. sawdust, olive stones and wood pellets; 2) coarse or irregularly-shaped particulate materials (up to 200 mm nominal top size) that can be sampled using a fork or shovel, e.g. wood chips, hog fuel and nut shells; 3) large pieces (above 200 mm nominal top size) which are picked manually (e.g. firewood and briquettes). This document can also be used for other solid biofuels not listed above if the procedures described in this document are applicable. This document specifies methods to be used, for example, when a sample is to be tested for moisture content, ash content, calorific value, bulk density, mechanical durability, particle size distribution, ash melting behaviour and chemical composition. Additionally, it describes a method for the reduction of sample size and defines requirements on handling and storage of samples. NOTE 1 If higher precision of analytical results is needed or when in doubt if this document is applicable ISO 18135 can be used. Using the number of increments given in this document the resulting precision for analytical results can be estimated with the formulas given in ISO 18135. NOTE 2 Pellets can generate CO and CO2 off gasses by nature. If pellets are sampled, check for CO and CO2 and O2 levels prior and during the sample taking process in a confined space like a container, silo or shed and have another person standby at the entrance.
分类信息
发布单位或类别: 国际组织-国际标准化组织
关联关系
研制信息
归口单位: ISO/TC 238
相似标准/计划/法规