Scope - Biomass

Proximate/elementary analysis

Wageningen University is accredited for the organization of Interlaboratory Studies by the Dutch Accreditation Council RvA under registration number R002. The accreditation is based on the ISO/IEC requirements (General requirements for proficiency testing, ISO/IEC 17043:2010). Measurands only meet the criteria for accreditation if the results are reported by a sufficient number of participants for at least three years and the results have proven to be homogeneous and stable.

Measurands marked with $ are not in the scope of the accreditation.

Scheme

Measurand group

Measurand

BIMEP

Elementary Analysis ELEM

Carbon (C), Cl, Hydrogen (H), Nitrogen (N), Oxygen (O), S 6 measurands, 6 accredited

Measurand	Full name	Unit	Concentration range	Constant error	Proportional error	Accredited
Carbon (C)	Carbon (C)	% (m/m)	10 - 55	1	4	yes
Cl	Chloride	g/kg	0.05 - 8	0.2	20	yes
Hydrogen (H)	Hydrogen (H)	% (m/m)	1 - 7	0.3	2.5	yes
Nitrogen (N)	Nitrogen (N)	% (m/m)	0.1 - 12	0.1	7.5	yes
Oxygen (O)	Oxygen (O)	% (m/m)	5 - 50	1.5	5	yes
S	Sulpher	g/kg	0.1 - 20	0.5	17.5	yes

BIMEP

General Analysis GEN

Ash, Calorific Value (gross), Moisture, Volatile Matter 4 measurands, 4 accredited

Measurand	Full name	Unit	Concentration range	Constant error	Proportional error	Accredited
Ash	Ash	% (m/m)	0.2 - 95	0.3	2	yes
Calorific Value (gross)	Calorific Value (gross)	MJ/kg	3 - 25	0.3	2	yes
Moisture	Moisture	% (m/m)	2 - 16	0.5	10	yes
Volatile Matter	Volatile Matter	% (m/m)	20 - 90	1.5	0	yes

BIMEP

Major Elements MAJOR

Al^$, Ca^$, Fe^$, K^$, Mg^$, Na^$, P^$, Si^$ 8 measurands, 0 accredited

Measurand	Full name	Unit	Concentration range	Constant error	Proportional error	Accredited
Al	Aluminum	g/kg	0 - 50	0.1	17.5	$
Ca	Calcium	g/kg	0 - 100	0.5	12.5	$
Fe	Iron	g/kg	0 - 100	0	22.5	$
K	Potassium	g/kg	0 - 100	0.5	12.5	$
Mg	Magnesium	g/kg	0 - 15	0.1	20	$
Na	Sodium	g/kg	0 - 15	0.1	20	$
P	Phosphorus	g/kg	0 - 50	0	22.5	$
Si	Silicon	g/kg	0 - 250	2	17.5	$

BIMEP

Minor Elements MINOR

As^$, Ba^$, Be^$, Cd^$, Co^$, Cr^$, Cu, F^$, Hg^$, Mn, Mo^$, Ni^$, Pb^$, Sb^$, Se^$, Sn^$, Te^$, Ti^$, Tl^$, V^$, Zn 21 measurands, 3 accredited

Measurand	Full name	Unit	Concentration range	Constant error	Proportional error	Accredited
As	Arsenic	mg/kg	0 - 15			$
Ba	Barium	mg/kg	0 - 750	3	22.5	$
Be	Beryllium	mg/kg	not specified			$
Cd	Cadmium	mg/kg	0 - 2.5			$
Co	Cobalt	mg/kg	0 - 10	0.6	25	$
Cr	Chromium	mg/kg	0 - 150	1	25	$
Cu	Copper	mg/kg	0 - 500	1	12.5	yes
F	Fluorine	mg/kg	not specified			$
Hg	Mercury	mg/kg	0 - 5	0	12.5	$
Mn	Manganese	mg/kg	0 - 1000	5	17.5	yes
Mo	Molybdenum	mg/kg	0 - 10			$
Ni	Nickel	mg/kg	0 - 75	1	17.5	$
Pb	Lead	mg/kg	0 - 500	5	10	$
Sb	Antimony	mg/kg	not specified			$
Se	Selenium	mg/kg	not specified			$
Sn	Tin	mg/kg	not specified			$
Te	Tellurium	mg/kg	not specified			$
Ti	Titanium	mg/kg	0 - 3000			$
Tl	Thallium	mg/kg	not specified			$
V	Vanadium	mg/kg	0 - 50	0.5	25	$
Zn	Zinc	mg/kg	0 - 2000	2	15	yes

BIMEP

Water Soluble Elements WS

Cl^$, K^$, Na^$ 3 measurands, 0 accredited

Measurand	Full name	Unit	Concentration range	Accredited
Cl	Chloride	g/kg	not specified	$
K	Potassium	g/kg	not specified	$
Na	Sodium	g/kg	not specified	$