本国际标准描述了制备取样计划和证书的方法，并采集固体生物燃料样品，例如从原料生长的地方，生产厂，交货地等。货车负载或库存。它包括手动和机械方法，适用于以下固体生物燃料: 精细（粒径高达约10毫米）和可以采样的规则形状的颗粒材料 使用勺子或管子，例如:锯屑，橄榄石和木颗粒; 粗糙或不规则形状的颗粒材料，可以采样的粒径达200毫米 使用叉子或铲子，例如:木屑和坚果壳，森林残渣和稻草; 包装材料例如:捆扎草或草; 大尺寸（粒径大于200mm），手动或自动选择; 蔬菜废弃物，来自原浆生产的纤维废物和来自纸浆的纸的生产 已经脱水 â圆木。 在其他固体生物燃料上可能使用本标准。这里描述的方法 可以使用标准，例如，当要测试样品的含水量，灰分含量， 热值，堆积密度，耐久性，粒度分布

ISO 18135:2017 describes methods for preparing sampling plans and certificates, as well as taking samples of solid biofuels, for example, from the place where the raw materials grow, from production plant, from deliveries, e.g. lorry loads, or from stock. It includes both manual and mechanical methods, and is applicable to solid biofuels that are either: - fine (particle sizes up to about 10 mm) and regularly shaped particulate materials that can be sampled using a scoop or pipe, for example, sawdust, olive stones and wood pellets; - coarse or irregularly shaped particulate materials (particle sizes up to about 200 mm) that can be sampled using a fork or shovel, for example, wood chips and nut shells, forest residue chips, and straw; - baled materials, for example, baled straw or grass; - large pieces (particle sizes above 200 mm) that are either picked manually or automatically; - vegetable waste, fibrous waste from virgin pulp production and from production of paper from pulp that has been dewatered; - thermally treated and densified biomass materials; - roundwood. ISO 18135:2017 is not applicable to airborne dust from solid biofuels. It may be possible to use this document for other solid biofuels. The methods described in this document may be used, for example, when the samples are to be tested for moisture content, ash content, calorific value, bulk density, durability, particle size distribution, ash melting behaviour and chemical composition.