The Certify API allows you to add measurement samples to your project. Measurement samples are used to represent a set of physical measurements that you have taken of the carbon removal process. For instance, these could be chemical analysis of soil, flue gas analyses or feedstock analyses.

Datapoints and measurement samples are closely related but measurement samples can contain many different values, whereas datapoints only contain one. Whereas datapoints are only used in crediting calculations, measurement samples can be used in both crediting and in the data quality assessment.

A measurement sample can have multiple pieces of metadata associated with it, such as the date and time of the measurement, the location of the measurement and the measurement type. The measurement type tells us what physical substance is being measured, such as soil, flue gas or feedstock. Measurement types are specific to pathways, so you should look for measurement types that are specific to the pathway you are working with. We currently support two pathways - enhanced weathering and biochar. Each individual measurement in a sample has a property which describes the physical parameter being measured.

Measurement properties

A measurement property is made up of two parts - a quantity kind and a qualifier. Each measurement type has an allowed list of measurement properties which are shown below.

Quantity kind

The quantity kind describes what physical parameter is being measured. For example, mass fraction or temperature is a quantity kind. The QuantityKind enum in the API schema lists all the possible quantity kinds. Quantity kind is based around ideas from the QUDT project.

Qualifiers

Some properties need more information to fully describe the measurement than just the quantity kind. In this case, we can add an extra qualifier to the property which tell us more about the measurement. For instance, for a mass fraction quantity kind, we might add a qualifier to say that the measurement is a mass fraction of a specific element.

Measurement type reference

Enhanced weathering measurement types

Soil

Soil measurement properties

Property	Quantity kind	Qualifier
Minimum depth	DEPTH	MIN_LIMIT
Maximum depth	DEPTH	MAX_LIMIT
pH	ACIDITY	—
Buffer pH	BUFFER_PH	—
Bulk density	BULK_DENSITY	—
Ca²⁺ Base Saturation	DIMENSIONLESS_RATIO	BASE_SATURATION_CA_2PLUS
K⁺ Base Saturation	DIMENSIONLESS_RATIO	BASE_SATURATION_K_PLUS
Mg²⁺ Base Saturation	DIMENSIONLESS_RATIO	BASE_SATURATION_MG_2PLUS
Na⁺ Base Saturation	DIMENSIONLESS_RATIO	BASE_SATURATION_NA_PLUS
Base Saturation	DIMENSIONLESS_RATIO	BASE_SATURATION_MAJOR_CATIONS
Al mass fraction	MASS_FRACTION	ELEMENT_AL
As mass fraction	MASS_FRACTION	ELEMENT_AS
Ba mass fraction	MASS_FRACTION	ELEMENT_BA
Ca exchangeable amount of substance per mass	EXCHANGEABLE_AMOUNT_OF_SUBSTANCE_PER_MASS	ELEMENT_CA
Ca mass fraction	MASS_FRACTION	ELEMENT_CA
Cd mass fraction	MASS_FRACTION	ELEMENT_CD
Ce mass fraction	MASS_FRACTION	ELEMENT_CE
Co mass fraction	MASS_FRACTION	ELEMENT_CO
Cr mass fraction	MASS_FRACTION	ELEMENT_CR
Cs mass fraction	MASS_FRACTION	ELEMENT_CS
Cu mass fraction	MASS_FRACTION	ELEMENT_CU
Eu mass fraction	MASS_FRACTION	ELEMENT_EU
Fe mass fraction	MASS_FRACTION	ELEMENT_FE
Hf mass fraction	MASS_FRACTION	ELEMENT_HF
Hg mass fraction	MASS_FRACTION	ELEMENT_HG
K exchangeable amount of substance per mass	EXCHANGEABLE_AMOUNT_OF_SUBSTANCE_PER_MASS	ELEMENT_K
K mass fraction	MASS_FRACTION	ELEMENT_K
La mass fraction	MASS_FRACTION	ELEMENT_LA
Lu mass fraction	MASS_FRACTION	ELEMENT_LU
Mg exchangeable amount of substance per mass	EXCHANGEABLE_AMOUNT_OF_SUBSTANCE_PER_MASS	ELEMENT_MG
Mg mass fraction	MASS_FRACTION	ELEMENT_MG
Mn mass fraction	MASS_FRACTION	ELEMENT_MN
Na exchangeable amount of substance per mass	EXCHANGEABLE_AMOUNT_OF_SUBSTANCE_PER_MASS	ELEMENT_NA
Na mass fraction	MASS_FRACTION	ELEMENT_NA
Nb mass fraction	MASS_FRACTION	ELEMENT_NB
Nd mass fraction	MASS_FRACTION	ELEMENT_ND
Ni mass fraction	MASS_FRACTION	ELEMENT_NI
P mass fraction	MASS_FRACTION	ELEMENT_P
Pb mass fraction	MASS_FRACTION	ELEMENT_PB
Rb mass fraction	MASS_FRACTION	ELEMENT_RB
S mass fraction	MASS_FRACTION	ELEMENT_S
Sc mass fraction	MASS_FRACTION	ELEMENT_SC
Se mass fraction	MASS_FRACTION	ELEMENT_SE
Sn mass fraction	MASS_FRACTION	ELEMENT_SN
Ta mass fraction	MASS_FRACTION	ELEMENT_TA
Tb mass fraction	MASS_FRACTION	ELEMENT_TB
Th mass fraction	MASS_FRACTION	ELEMENT_TH
Ti mass fraction	MASS_FRACTION	ELEMENT_TI
Tl mass fraction	MASS_FRACTION	ELEMENT_TL
U mass fraction	MASS_FRACTION	ELEMENT_U
V mass fraction	MASS_FRACTION	ELEMENT_V
W mass fraction	MASS_FRACTION	ELEMENT_W
Y mass fraction	MASS_FRACTION	ELEMENT_Y
Yb mass fraction	MASS_FRACTION	ELEMENT_YB
Zn mass fraction	MASS_FRACTION	ELEMENT_ZN
Zr mass fraction	MASS_FRACTION	ELEMENT_ZR
Soil Inorganic Carbon mass fraction	MASS_FRACTION	SOIL_INORGANIC_CARBON
Soil Organic Carbon mass fraction	MASS_FRACTION	SOIL_ORGANIC_CARBON
Soil Organic Matter mass fraction	MASS_FRACTION	SOIL_ORGANIC_MATTER
Total Carbon mass fraction	MASS_FRACTION	TOTAL_CARBON
Loss on Ignition mass fraction	MASS_FRACTION	LOSS_ON_IGNITION
Cation Exchange Capacity	AMOUNT_OF_SUBSTANCE_PER_MASS	CATION_EXCHANGE_CAPACITY
Potential Acidity	AMOUNT_OF_SUBSTANCE_PER_MASS	POTENTIAL_ACIDITY
Clay mass fraction	MASS_FRACTION	CLAY
Sand mass fraction	MASS_FRACTION	SAND
Silt mass fraction	MASS_FRACTION	SILT

Porewater

Porewater measurement properties

Property	Quantity kind	Qualifier
Depth	DEPTH	—
pH	ACIDITY	—
Temperature	TEMPERATURE	—
Cl⁻ mass fraction	MASS_FRACTION	ANION_CL_1MINUS
NO₃⁻ mass fraction	MASS_FRACTION	ANION_NO3_1MINUS
PO₄³⁻ mass fraction	MASS_FRACTION	ANION_PO4_3MINUS
SO₄²⁻ mass fraction	MASS_FRACTION	ANION_SO4_2MINUS
CO₂ partial pressure	PARTIAL_PRESSURE	COMPOUND_CO2
Al mass fraction	MASS_FRACTION	ELEMENT_AL
As mass fraction	MASS_FRACTION	ELEMENT_AS
Ba mass fraction	MASS_FRACTION	ELEMENT_BA
Ca mass fraction	MASS_FRACTION	ELEMENT_CA
Cd mass fraction	MASS_FRACTION	ELEMENT_CD
Ce mass fraction	MASS_FRACTION	ELEMENT_CE
Co mass fraction	MASS_FRACTION	ELEMENT_CO
Cr mass fraction	MASS_FRACTION	ELEMENT_CR
Cs mass fraction	MASS_FRACTION	ELEMENT_CS
Cu mass fraction	MASS_FRACTION	ELEMENT_CU
Eu mass fraction	MASS_FRACTION	ELEMENT_EU
Fe mass fraction	MASS_FRACTION	ELEMENT_FE
Hf mass fraction	MASS_FRACTION	ELEMENT_HF
Hg mass fraction	MASS_FRACTION	ELEMENT_HG
K mass fraction	MASS_FRACTION	ELEMENT_K
La mass fraction	MASS_FRACTION	ELEMENT_LA
Lu mass fraction	MASS_FRACTION	ELEMENT_LU
Mg mass fraction	MASS_FRACTION	ELEMENT_MG
Mn mass fraction	MASS_FRACTION	ELEMENT_MN
Na mass fraction	MASS_FRACTION	ELEMENT_NA
Nb mass fraction	MASS_FRACTION	ELEMENT_NB
Nd mass fraction	MASS_FRACTION	ELEMENT_ND
Ni mass fraction	MASS_FRACTION	ELEMENT_NI
Pb mass fraction	MASS_FRACTION	ELEMENT_PB
Rb mass fraction	MASS_FRACTION	ELEMENT_RB
S mass fraction	MASS_FRACTION	ELEMENT_S
Sc mass fraction	MASS_FRACTION	ELEMENT_SC
Se mass fraction	MASS_FRACTION	ELEMENT_SE
Si mass fraction	MASS_FRACTION	ELEMENT_SI
Sn mass fraction	MASS_FRACTION	ELEMENT_SN
Ta mass fraction	MASS_FRACTION	ELEMENT_TA
Tb mass fraction	MASS_FRACTION	ELEMENT_TB
Th mass fraction	MASS_FRACTION	ELEMENT_TH
Ti mass fraction	MASS_FRACTION	ELEMENT_TI
Tl mass fraction	MASS_FRACTION	ELEMENT_TL
U mass fraction	MASS_FRACTION	ELEMENT_U
V mass fraction	MASS_FRACTION	ELEMENT_V
W mass fraction	MASS_FRACTION	ELEMENT_W
Y mass fraction	MASS_FRACTION	ELEMENT_Y
Yb mass fraction	MASS_FRACTION	ELEMENT_YB
Zn mass fraction	MASS_FRACTION	ELEMENT_ZN
Zr mass fraction	MASS_FRACTION	ELEMENT_ZR
Alkalinity	AMOUNT_OF_SUBSTANCE_CONCENTRATION	ALKALINITY
Alkalinity	AMOUNT_OF_SUBSTANCE_PER_MASS	ALKALINITY
Dissolved Inorganic Carbon	AMOUNT_OF_SUBSTANCE_CONCENTRATION	DISSOLVED_INORGANIC_CARBON
Dissolved Inorganic Carbon	AMOUNT_OF_SUBSTANCE_PER_MASS	DISSOLVED_INORGANIC_CARBON
Dissolved Inorganic Carbon	MASS_CONCENTRATION	DISSOLVED_INORGANIC_CARBON
Dissolved Inorganic Carbon mass fraction	MASS_FRACTION	DISSOLVED_INORGANIC_CARBON
Total Carbon	AMOUNT_OF_SUBSTANCE_CONCENTRATION	TOTAL_CARBON
Total Carbon	AMOUNT_OF_SUBSTANCE_PER_MASS	TOTAL_CARBON
Total Carbon	MASS_CONCENTRATION	TOTAL_CARBON
Total Carbon mass fraction	MASS_FRACTION	TOTAL_CARBON
Total Inorganic Carbon	AMOUNT_OF_SUBSTANCE_CONCENTRATION	TOTAL_INORGANIC_CARBON
Total Inorganic Carbon	AMOUNT_OF_SUBSTANCE_PER_MASS	TOTAL_INORGANIC_CARBON
Total Inorganic Carbon	MASS_CONCENTRATION	TOTAL_INORGANIC_CARBON
Total Inorganic Carbon mass fraction	MASS_FRACTION	TOTAL_INORGANIC_CARBON

Mineral feedstock

Mineral feedstock measurement properties

Property	Quantity kind	Qualifier
Bulk density	BULK_DENSITY	—
Particle mass density	PARTICLE_MASS_DENSITY	—
Specific surface area	SPECIFIC_SURFACE_AREA	—
H₂O mass fraction	MASS_FRACTION	COMPOUND_H2O
Al mass fraction	MASS_FRACTION	ELEMENT_AL
As mass fraction	MASS_FRACTION	ELEMENT_AS
Ba mass fraction	MASS_FRACTION	ELEMENT_BA
Ca mass fraction	MASS_FRACTION	ELEMENT_CA
Cd mass fraction	MASS_FRACTION	ELEMENT_CD
Ce mass fraction	MASS_FRACTION	ELEMENT_CE
Co mass fraction	MASS_FRACTION	ELEMENT_CO
Cr mass fraction	MASS_FRACTION	ELEMENT_CR
Cs mass fraction	MASS_FRACTION	ELEMENT_CS
Cu mass fraction	MASS_FRACTION	ELEMENT_CU
Eu mass fraction	MASS_FRACTION	ELEMENT_EU
Fe mass fraction	MASS_FRACTION	ELEMENT_FE
Hf mass fraction	MASS_FRACTION	ELEMENT_HF
Hg mass fraction	MASS_FRACTION	ELEMENT_HG
K mass fraction	MASS_FRACTION	ELEMENT_K
La mass fraction	MASS_FRACTION	ELEMENT_LA
Lu mass fraction	MASS_FRACTION	ELEMENT_LU
Mg mass fraction	MASS_FRACTION	ELEMENT_MG
Mn mass fraction	MASS_FRACTION	ELEMENT_MN
Mo mass fraction	MASS_FRACTION	ELEMENT_MO
Na mass fraction	MASS_FRACTION	ELEMENT_NA
Nb mass fraction	MASS_FRACTION	ELEMENT_NB
Nd mass fraction	MASS_FRACTION	ELEMENT_ND
Ni mass fraction	MASS_FRACTION	ELEMENT_NI
P mass fraction	MASS_FRACTION	ELEMENT_P
Pb mass fraction	MASS_FRACTION	ELEMENT_PB
Rb mass fraction	MASS_FRACTION	ELEMENT_RB
S mass fraction	MASS_FRACTION	ELEMENT_S
Sc mass fraction	MASS_FRACTION	ELEMENT_SC
Se mass fraction	MASS_FRACTION	ELEMENT_SE
Si mass fraction	MASS_FRACTION	ELEMENT_SI
Sn mass fraction	MASS_FRACTION	ELEMENT_SN
Sr mass fraction	MASS_FRACTION	ELEMENT_SR
Ta mass fraction	MASS_FRACTION	ELEMENT_TA
Tb mass fraction	MASS_FRACTION	ELEMENT_TB
Th mass fraction	MASS_FRACTION	ELEMENT_TH
Ti mass fraction	MASS_FRACTION	ELEMENT_TI
Tl mass fraction	MASS_FRACTION	ELEMENT_TL
U mass fraction	MASS_FRACTION	ELEMENT_U
V mass fraction	MASS_FRACTION	ELEMENT_V
W mass fraction	MASS_FRACTION	ELEMENT_W
Y mass fraction	MASS_FRACTION	ELEMENT_Y
Yb mass fraction	MASS_FRACTION	ELEMENT_YB
Zn mass fraction	MASS_FRACTION	ELEMENT_ZN
Zr mass fraction	MASS_FRACTION	ELEMENT_ZR
Total Carbon mass fraction	MASS_FRACTION	TOTAL_CARBON
Albite mass fraction	MASS_FRACTION	MINERAL_ALBITE
Andesine mass fraction	MASS_FRACTION	MINERAL_ANDESINE
Augite mass fraction	MASS_FRACTION	MINERAL_AUGITE
Diopside mass fraction	MASS_FRACTION	MINERAL_DIOPSIDE
Hematite mass fraction	MASS_FRACTION	MINERAL_HEMATITE
Labradorite mass fraction	MASS_FRACTION	MINERAL_LABRADORITE
Maghemite mass fraction	MASS_FRACTION	MINERAL_MAGHEMITE
Montmorillonite mass fraction	MASS_FRACTION	MINERAL_MONTMORILLONITE
Orthoclase mass fraction	MASS_FRACTION	MINERAL_ORTHOCLASE
Pigeonite mass fraction	MASS_FRACTION	MINERAL_PIGEONITE
Quartz mass fraction	MASS_FRACTION	MINERAL_QUARTZ
Rutile mass fraction	MASS_FRACTION	MINERAL_RUTILE
Asbestiform minerals mass fraction	MASS_FRACTION	MINERAL_CATEGORY_ASBESTIFORM
Asbestos mass fraction	MASS_FRACTION	MINERAL_CATEGORY_ASBESTOS
Gross alpha activity concentration	ACTIVITY_CONCENTRATION	GROSS_ALPHA
Gross beta activity concentration	ACTIVITY_CONCENTRATION	GROSS_BETA
Particle diameter p10	PARTICLE_DIAMETER	PERCENTILE_10
Particle diameter p50	PARTICLE_DIAMETER	PERCENTILE_50
Particle diameter p80	PARTICLE_DIAMETER	PERCENTILE_80
Particle diameter p90	PARTICLE_DIAMETER	PERCENTILE_90
Particle diameter p97	PARTICLE_DIAMETER	PERCENTILE_97
Radiation equivalent dose rate [EC RP112]	DOSE_EQUIVALENT_RATE	RADIATION_NORMALIZATION_METHOD_EC_RP112_STANDARD_ROOM_MODEL
Gamma activity concentration index [ACI]	DIMENSIONLESS	RADIATION_NORMALIZATION_METHOD_GAMMA_ACTIVITY_CONCENTRATION_IDX

Biomass

Biomass measurement properties

Property	Quantity kind	Qualifier
Dry mass	MASS	MATERIAL_CONDITION_DRY
Wet mass	MASS	MATERIAL_CONDITION_WET
Al mass fraction	MASS_FRACTION	ELEMENT_AL
As mass fraction	MASS_FRACTION	ELEMENT_AS
B mass fraction	MASS_FRACTION	ELEMENT_B
Ba mass fraction	MASS_FRACTION	ELEMENT_BA
Ca mass fraction	MASS_FRACTION	ELEMENT_CA
Cd mass fraction	MASS_FRACTION	ELEMENT_CD
Co mass fraction	MASS_FRACTION	ELEMENT_CO
Cr mass fraction	MASS_FRACTION	ELEMENT_CR
Cu mass fraction	MASS_FRACTION	ELEMENT_CU
Fe mass fraction	MASS_FRACTION	ELEMENT_FE
Hg mass fraction	MASS_FRACTION	ELEMENT_HG
K mass fraction	MASS_FRACTION	ELEMENT_K
Mg mass fraction	MASS_FRACTION	ELEMENT_MG
Mn mass fraction	MASS_FRACTION	ELEMENT_MN
Mo mass fraction	MASS_FRACTION	ELEMENT_MO
N mass fraction	MASS_FRACTION	ELEMENT_N
Na mass fraction	MASS_FRACTION	ELEMENT_NA
Ni mass fraction	MASS_FRACTION	ELEMENT_NI
P mass fraction	MASS_FRACTION	ELEMENT_P
Pb mass fraction	MASS_FRACTION	ELEMENT_PB
S mass fraction	MASS_FRACTION	ELEMENT_S
Se mass fraction	MASS_FRACTION	ELEMENT_SE
Si mass fraction	MASS_FRACTION	ELEMENT_SI
Ti mass fraction	MASS_FRACTION	ELEMENT_TI
Tl mass fraction	MASS_FRACTION	ELEMENT_TL
U mass fraction	MASS_FRACTION	ELEMENT_U
V mass fraction	MASS_FRACTION	ELEMENT_V
Zn mass fraction	MASS_FRACTION	ELEMENT_ZN
Total Carbon mass fraction	MASS_FRACTION	TOTAL_CARBON
Yield	MASS_PER_AREA	CROP_YIELD

Ion exchange resin

Ion exchange resin measurement properties

Property	Quantity kind	Qualifier
NO₃⁻	AMOUNT_OF_SUBSTANCE_PER_MASS	ANION_NO3_1MINUS
PO₄³⁻	AMOUNT_OF_SUBSTANCE_PER_MASS	ANION_PO4_3MINUS
SO₄²⁻	AMOUNT_OF_SUBSTANCE_PER_MASS	ANION_SO4_2MINUS
Ca mass fraction	MASS_FRACTION	ELEMENT_CA
Co mass fraction	MASS_FRACTION	ELEMENT_CO
Cr mass fraction	MASS_FRACTION	ELEMENT_CR
K mass fraction	MASS_FRACTION	ELEMENT_K
Mg mass fraction	MASS_FRACTION	ELEMENT_MG
Na mass fraction	MASS_FRACTION	ELEMENT_NA
Ni mass fraction	MASS_FRACTION	ELEMENT_NI

Biochar measurement types

Production batch

Production batch measurement properties

Property	Quantity kind	Qualifier
Mass	MASS	—
pH	ACIDITY	—
Specific surface area	SPECIFIC_SURFACE_AREA	—
H:C	DIMENSIONLESS_RATIO	HYDROGEN_TO_ORGANIC_CARBON_RATIO
Inertinite Fraction	DIMENSIONLESS_RATIO	INERTINITE_FRACTION
Poorly Carbonized Fraction	DIMENSIONLESS_RATIO	POORLY_CARBONIZED_FRACTION
Semi-Inertinite Fraction	DIMENSIONLESS_RATIO	SEMI_INERTINITE_FRACTION
1-2-3-4-6-7-8-HeptacDD mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	HEPTACDD_1234678
1-2-3-4-6-7-8-HeptacDF mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	HEPTACDF_1234678
1-2-3-4-7-8-9-HeptacDF mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	HEPTACDF_1234789
1-2-3-4-7-8-HexacDD mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	HEXACDD_123478
1-2-3-4-7-8-HexacDF mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	HEXACDF_123478
1-2-3-6-7-8-HexacDD mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	HEXACDD_123678
1-2-3-6-7-8-HexacDF mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	HEXACDF_123678
1-2-3-7-8-9-HexacDD mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	HEXACDD_123789
1-2-3-7-8-9-HexacDF mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	HEXACDF_123789
1-2-3-7-8-PentacDD mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	PENTACDD_12378
1-2-3-7-8-PentacDF mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	PENTACDF_12378
HexaCDF 234678 mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	HEXACDF_234678
2-3-4-7-8-PentacDF mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	PENTACDF_23478
2-3-7-8-TetraCDD mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	TETRACDD_2378
2-3-7-8-TetraCDF mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	TETRACDF_2378
H₂O mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	COMPOUND_H2O
H₂O mass fraction (wet basis)	MASS_FRACTION_WET_BASIS	COMPOUND_H2O
Acenaphthene mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	ACENAPHTHENE
Acenaphthylene mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	ACENAPHTHYLENE
Anthracene mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	ANTHRACENE
Benz[a]anthracene mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	BENZ_A_ANTHRACENE
Benzo[a]pyrene mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	BENZO_A_PYRENE
Benzo[b]fluoranthene mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	BENZO_B_FLUORANTHENE
Benzo[e]pyrene mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	BENZO_E_PYRENE
Benzo[g-h-i]perylene mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	BENZO_GHI_PERYLENE
Benzo[j]fluoranthene mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	BENZO_J_FLUORANTHENE
Benzo[k]fluoranthene mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	BENZO_K_FLUORANTHENE
Chrysene mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	CHRYSENE
Dibenzo[a-h]anthracene mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	DIBENZ_AH_ANTHRACENE
Fluoranthene mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	FLUORANTHENE
Fluorene mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	FLUORENE
Indeno[1-2-3-cd]pyrene mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	INDENO_123_CD_PYRENE
Naphthalene mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	NAPHTHALENE
OctaCDD mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	OCTACDD
OctaCDF mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	OCTACDF
PCB-101 mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	PCB_101
PCB-105 mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	PCB_105
PCB-114 mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	PCB_114
PCB-118 mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	PCB_118
PCB-123 mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	PCB_123
PCB-126 mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	PCB_126
PCB-138 mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	PCB_138
PCB-153 mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	PCB_153
PCB-156 mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	PCB_156
PCB-157 mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	PCB_157
PCB-167 mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	PCB_167
PCB-169 mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	PCB_169
PCB-180 mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	PCB_180
PCB-189 mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	PCB_189
PCB-28 mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	PCB_28
PCB-52 mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	PCB_52
PCB-77 mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	PCB_77
PCB-81 mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	PCB_81
Phenanthrene mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	PHENANTHRENE
Pyrene mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	PYRENE
I TEQ NATO CCMS lower bound mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	I_TEQ_NATO_CCMS_LOWER_BOUND
I TEQ NATO CCMS upper bound mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	I_TEQ_NATO_CCMS_UPPER_BOUND
Total 16 EPA PAH excl LOQ mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	TOTAL_16_EPA_PAH_EXCL_LOQ
Total 6 NDL PCB lower bound mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	TOTAL_6_NDL_PCB_LOWER_BOUND
Total 6 NDL PCB upper bound mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	TOTAL_6_NDL_PCB_UPPER_BOUND
Total 7 indicator PCB lower bound mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	TOTAL_7_INDICATOR_PCB_LOWER_BOUND
Total 7 indicator PCB upper bound mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	TOTAL_7_INDICATOR_PCB_UPPER_BOUND
Total 8 EFSA PAH excl LOQ mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	TOTAL_8_EFSA_PAH_EXCL_LOQ
WHO 2005 PCB TEQ lower bound mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	WHO_2005_PCB_TEQ_LOWER_BOUND
WHO 2005 PCB TEQ upper bound mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	WHO_2005_PCB_TEQ_UPPER_BOUND
WHO 2005 PCDD/F PCB TEQ lower bound mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	WHO_2005_PCDD_F_PCB_TEQ_LOWER_BOUND
WHO 2005 PCDD/F PCB TEQ upper bound mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	WHO_2005_PCDD_F_PCB_TEQ_UPPER_BOUND
WHO 2005 PCDD/F TEQ lower bound mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	WHO_2005_PCDD_F_TEQ_LOWER_BOUND
WHO 2005 PCDD/F TEQ upper bound mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	WHO_2005_PCDD_F_TEQ_UPPER_BOUND
As mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	ELEMENT_AS
As mass fraction (wet basis)	MASS_FRACTION_WET_BASIS	ELEMENT_AS
Cd mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	ELEMENT_CD
Cd mass fraction (wet basis)	MASS_FRACTION_WET_BASIS	ELEMENT_CD
Co mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	ELEMENT_CO
Co mass fraction (wet basis)	MASS_FRACTION_WET_BASIS	ELEMENT_CO
Cr mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	ELEMENT_CR
Cr mass fraction (wet basis)	MASS_FRACTION_WET_BASIS	ELEMENT_CR
Cu mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	ELEMENT_CU
Cu mass fraction (wet basis)	MASS_FRACTION_WET_BASIS	ELEMENT_CU
H mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	ELEMENT_H
H mass fraction (wet basis)	MASS_FRACTION_WET_BASIS	ELEMENT_H
Hg mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	ELEMENT_HG
Hg mass fraction (wet basis)	MASS_FRACTION_WET_BASIS	ELEMENT_HG
K mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	ELEMENT_K
K mass fraction (wet basis)	MASS_FRACTION_WET_BASIS	ELEMENT_K
Ni mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	ELEMENT_NI
Ni mass fraction (wet basis)	MASS_FRACTION_WET_BASIS	ELEMENT_NI
O mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	ELEMENT_O
O mass fraction (wet basis)	MASS_FRACTION_WET_BASIS	ELEMENT_O
P mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	ELEMENT_P
P mass fraction (wet basis)	MASS_FRACTION_WET_BASIS	ELEMENT_P
Pb mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	ELEMENT_PB
Pb mass fraction (wet basis)	MASS_FRACTION_WET_BASIS	ELEMENT_PB
Sb mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	ELEMENT_SB
Sb mass fraction (wet basis)	MASS_FRACTION_WET_BASIS	ELEMENT_SB
V mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	ELEMENT_V
V mass fraction (wet basis)	MASS_FRACTION_WET_BASIS	ELEMENT_V
Zn mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	ELEMENT_ZN
Zn mass fraction (wet basis)	MASS_FRACTION_WET_BASIS	ELEMENT_ZN
Fixed Carbon mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	FIXED_CARBON
Fixed Carbon mass fraction (wet basis)	MASS_FRACTION_WET_BASIS	FIXED_CARBON
Total Carbon mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	TOTAL_CARBON
Total Carbon mass fraction (wet basis)	MASS_FRACTION_WET_BASIS	TOTAL_CARBON
Total Inorganic Carbon mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	TOTAL_INORGANIC_CARBON
Total Inorganic Carbon mass fraction (wet basis)	MASS_FRACTION_WET_BASIS	TOTAL_INORGANIC_CARBON
Ash Content mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	ASH_CONTENT
Porosity	DIMENSIONLESS_RATIO	POROSITY
Volatile Matter mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	VOLATILE_MATTER
Particle diameter p10	PARTICLE_DIAMETER	PERCENTILE_10
Particle diameter p80	PARTICLE_DIAMETER	PERCENTILE_80
Particle diameter p90	PARTICLE_DIAMETER	PERCENTILE_90
Particle diameter p97	PARTICLE_DIAMETER	PERCENTILE_97
Cation Exchange Capacity	AMOUNT_OF_SUBSTANCE_PER_MASS	CATION_EXCHANGE_CAPACITY

Soil

Soil measurement properties

Property	Quantity kind	Qualifier
pH	ACIDITY	—
Bulk density	BULK_DENSITY	—
Temperature	TEMPERATURE	—
H₂O mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	COMPOUND_H2O
H₂O mass fraction (wet basis)	MASS_FRACTION_WET_BASIS	COMPOUND_H2O
Soil Organic Carbon mass fraction (dry basis)	MASS_FRACTION_DRY_BASIS	SOIL_ORGANIC_CARBON
Soil Organic Carbon mass fraction (wet basis)	MASS_FRACTION_WET_BASIS	SOIL_ORGANIC_CARBON
Clay mass fraction	MASS_FRACTION	CLAY
Sand mass fraction	MASS_FRACTION	SAND
Silt mass fraction	MASS_FRACTION	SILT

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