Hivatkozási szám

MSZ EN ISO 21945:2020

Dokumentumazonosító

175133

Cím

Szilárd bio-tüzelőanyagok. Kis mennyiségű mintán végzett egyszerűsített mintavételi módszer (ISO 21945:2020)

Angol cím

Solid biofuels. Simplified sampling method for small scale applications (ISO 21945:2020)

Alkalmazási terület

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 COˇ2^ 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.

ICS

27.190 Biológiai források és alternatív energiaforrások

75.160.40 Bio-tüzelőanyagok

Műszaki Bizottság

A szabvány nyelve

angol

Az érvényesség kezdete

2020-07-01

Forrás

idt ISO 21945:2020; idt EN ISO 21945:2020

Előd

Utód

Módosítás

Kiegészítő információk

SZK-közlemények

Kapcsolódó európai jogszabály

A szabvány

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