ISO 20023:2018
Solid biofuels — Safety of solid biofuel pellets — Safe handling and storage of wood pellets in residential and other small-scale applications
This document provides principles and requirements for the safe handling and storage of wood pellets in residential and other small-scale applications. It covers the supply chain from loading of the delivery truck, requirements of delivery trucks, connections to the end-user's store and the delivery process. It also covers the design and construction of pellet storage systems. This document addresses risks of fires, dust explosions, off-gassing, oxygen depletion, damage to appliances and buildings through swelling of pellets and other health risks. It is applicable to wood pellets according to ISO 17225-2.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
3.1 General terms
3.2 Terms related to transportation and delivery
3.3 Terms related to storage
4 General
4.1 Product requirements
4.2 Hazards associated with amounts of pellets ≤100 t
4.3 General requirements for storage and handling of pellets
5 Requirements for safe transport and delivery of pellets
5.1 General
5.2 Requirements for bulk delivery by blower trucks
5.2.1 Transport vehicles and their operation
5.2.2 Filling end-user storage systems
5.3 Pellets delivered in bulk tipped into troughs or bunkers
5.4 Pellets delivered in big bags
5.5 Pellets delivered in small bags on pallets
6 Requirements for bulk storage systems
6.1 General requirements
6.1.1 Location of pellet store
6.1.2 Quality control of installation
6.1.3 Construction requirements
6.1.4 Measures to reduce the accumulation of fines
6.1.5 Protection against moisture and water
6.1.6 Prevention of dust movement
6.1.7 Noise protection
6.1.8 Installation
6.1.9 Fire protection
6.1.10 Explosion prevention
6.1.11 Protection and measures against burn-back and back gassing
6.1.12 Extraction systems
6.1.13 Fill connectors and piping
6.1.14 Electrical outlet for suction fan
6.1.15 Ventilation
6.1.16 Safety instructions
6.1.17 Access to storage
6.2 Individual custom-made pellet stores
6.2.1 Construction requirements
6.2.2 Fill connectors
6.2.3 Impact protection mat
6.2.4 Sloping floor
6.2.5 Access hatch/door to pellet store
6.3 Pre-fabricated storage systems
6.3.1 General
6.3.2 Requirements regarding the site, indoor systems
6.3.3 Requirements regarding the siting of outdoor installations
6.3.4 Ground connection (earth)
6.3.5 Filling instructions
6.3.6 Fabric store
6.3.7 Underground store
7 Health protection aspects
7.1 Entering a pellet store
7.1.1 General
7.1.2 Requirements for small pellet stores up to 15 t
7.1.3 Requirements for pellet stores >15 t and/or underground stores
7.2 Stationary CO monitors
7.3 Equipment used in stores
Annex A (informative) Hazards associated with pellets
Annex B (informative) Model calculation for different cases of store ventilation
Annex C (informative) Examples for store designs
Annex D (normative) Minimum requirements of a hand-over document
Annex E (informative) Example of a checklist for filling of store
Bibliography
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Related Information
Similar Standards
-
AS/NZS ISO 17225.2:2023
Solid biofuels – Fuel specifications and classes, Part 2: Graded wood pellets
-
BS EN 14078:2014
Liquid petroleum products. Determination of fatty acid methyl ester (FAME) content in middle distillates. Infrared spectrometry method
-
BS EN 15234-1:2011
Solid biofuels. Fuel quality assurance, General requirements
-
BS EN 15234-2:2012
Solid biofuels. Fuel quality assurance, Wood pellets for non-industrial use
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
3.1 General terms
3.2 Terms related to transportation and delivery
3.3 Terms related to storage
4 General
4.1 Product requirements
4.2 Hazards associated with amounts of pellets ≤100 t
4.3 General requirements for storage and handling of pellets
5 Requirements for safe transport and delivery of pellets
5.1 General
5.2 Requirements for bulk delivery by blower trucks
5.2.1 Transport vehicles and their operation
5.2.2 Filling end-user storage systems
5.3 Pellets delivered in bulk tipped into troughs or bunkers
5.4 Pellets delivered in big bags
5.5 Pellets delivered in small bags on pallets
6 Requirements for bulk storage systems
6.1 General requirements
6.1.1 Location of pellet store
6.1.2 Quality control of installation
6.1.3 Construction requirements
6.1.4 Measures to reduce the accumulation of fines
6.1.5 Protection against moisture and water
6.1.6 Prevention of dust movement
6.1.7 Noise protection
6.1.8 Installation
6.1.9 Fire protection
6.1.10 Explosion prevention
6.1.11 Protection and measures against burn-back and back gassing
6.1.12 Extraction systems
6.1.13 Fill connectors and piping
6.1.14 Electrical outlet for suction fan
6.1.15 Ventilation
6.1.16 Safety instructions
6.1.17 Access to storage
6.2 Individual custom-made pellet stores
6.2.1 Construction requirements
6.2.2 Fill connectors
6.2.3 Impact protection mat
6.2.4 Sloping floor
6.2.5 Access hatch/door to pellet store
6.3 Pre-fabricated storage systems
6.3.1 General
6.3.2 Requirements regarding the site, indoor systems
6.3.3 Requirements regarding the siting of outdoor installations
6.3.4 Ground connection (earth)
6.3.5 Filling instructions
6.3.6 Fabric store
6.3.7 Underground store
7 Health protection aspects
7.1 Entering a pellet store
7.1.1 General
7.1.2 Requirements for small pellet stores up to 15 t
7.1.3 Requirements for pellet stores >15 t and/or underground stores
7.2 Stationary CO monitors
7.3 Equipment used in stores
Annex A (informative) Hazards associated with pellets
Annex B (informative) Model calculation for different cases of store ventilation
Annex C (informative) Examples for store designs
Annex D (normative) Minimum requirements of a hand-over document
Annex E (informative) Example of a checklist for filling of store
Bibliography