International Standards

Standard Code	Organization	Scope	Description	Key Requirements
ISO 17225 Series	ISO	Solid Biofuels	Fuel Specifications	Quality requirements
ISO 18122	ISO	Ash Content	Testing Methods	Ash determination
ISO 18125	ISO	Calorific Value	Testing Methods	Energy content
ISO 16559	ISO	Terminology	Definitions	Standard terms
ISO 20024	ISO	Safety	Handling & Storage	Safety requirements
ISO 21404	ISO	Emissions	Testing Methods	Emission measurement

European Standards

Standard Code	Organization	Scope	Key Requirements
EN 303-5	CEN	Heating Boilers	Emission limits, efficiency
EN 12952-15	CEN	Water-tube Boilers	Acceptance tests
EN 14961 Series	CEN	Solid Biofuels	Fuel specifications
EN 15270	CEN	Pellet Burners	Performance requirements
EN 13284-1	CEN	Emissions	Dust measurement
EN 14181	CEN	Quality Assurance	Automated measuring systems

Emissions Standards

Standard Code	Region/Country	Scope	Key Requirements
2010/75/EU	EU	Industrial Emissions	Emission limits
40 CFR Part 60	USA	Air Quality	EPA requirements
GB 13223	China	Air Pollutants	Chinese limits
JIS Z 8808	Japan	Stack Emissions	Measurement methods
BS EN 14181	UK	Quality Assurance	Monitoring systems

Safety Standards

Standard Code	Organization	Scope	Key Requirements
NFPA 850	NFPA	Fire Protection	Fire safety
NFPA 664	NFPA	Wood Processing	Dust explosion prevention
ISO 45001	ISO	Occupational Safety	Safety management
EN 12952-7	CEN	Boiler Requirements	Safety equipment
ATEX Directive	EU	Explosion Protection	Zone classification

Fuel Handling Standards

Standard Code	Organization	Scope	Key Requirements
EN 15237	CEN	Fuel Storage	Storage requirements
ISO 20024	ISO	Safe Handling	Safety procedures
EN 14961-1	CEN	Fuel Classification	Quality classes
ASTM E870	ASTM	Analysis Methods	Testing procedures
EN 15234	CEN	Quality Assurance	Fuel quality assurance

Plant Design Standards

Standard Code	Organization	Scope	Key Requirements
ASME BPVC	ASME	Boiler Design	Pressure vessel code
EN 12952 Series	CEN	Water-tube Boilers	Design requirements
ISO 16528	ISO	Boiler Registration	Registration requirements
EN 13480	CEN	Metallic Piping	Piping systems
IEC 61511	IEC	Functional Safety	Safety systems

Environmental Management

Standard Code	Organization	Scope	Key Requirements
ISO 14001	ISO	Environmental Management	Management system
EN 14181	CEN	Emissions Monitoring	QA procedures
ISO 14064	ISO	GHG Emissions	Carbon accounting
EN 15259	CEN	Air Quality	Measurement strategy
BAT Reference	EU	Best Available Techniques	Environmental performance

Quality Control Standards

Standard Code	Organization	Scope	Key Requirements
ISO 9001	ISO	Quality Management	Management system
EN 15234	CEN	Fuel Quality Assurance	Quality control
ISO 17225-1	ISO	Fuel Requirements	General requirements
EN ISO 18122	CEN/ISO	Ash Determination	Testing methods
ISO 18125	ISO	Calorific Value	Testing methods

Performance Standards

Standard Code	Organization	Scope	Key Requirements
EN 12952-15	CEN	Performance Tests	Acceptance testing
ASME PTC 4	ASME	Boiler Performance	Testing procedures
ISO 3977	ISO	Gas Turbines	Performance standards
EN 12953-11	CEN	Acceptance Tests	Testing requirements
ISO 15547	ISO	Heat Exchangers	Design requirements

Grid Connection Standards

Standard Code	Organization	Scope	Key Requirements
IEEE 1547	IEEE	Interconnection	Grid connection
EN 50160	CENELEC	Voltage Characteristics	Power quality
IEC 61000 Series	IEC	EMC	Electromagnetic compatibility
ENTSO-E NC RfG	EU	Grid Requirements	Network codes
G99 (UK)	UK	Grid Connection	UK requirements

Maintenance Standards

Standard Code	Organization	Scope	Key Requirements
EN 13306	CEN	Maintenance	Terminology
ISO 55000	ISO	Asset Management	Management system
EN 15341	CEN	Maintenance KPIs	Performance indicators
NFPA 85	NFPA	Boiler Operation	Operating procedures
ISO 14224	ISO	Data Collection	Reliability data