Chatoyance was measured by the chatometry.com team using the PZC method. The statistics for this specific timber are hereby summarized to provide an evaluation of data robustness:
Number of sources for samples: 7
Number of individual trees analyzed: 9
Number of specimens: 28
Number of measurements: 87
Max PZC read (of all measurements): 19.3
Min PZC read (of all measurements): 8.3
Max PZC average on one log: 17.2
Min PZC average on one log: 10.4
PZC Average of all logs: 14.5

Species: populus spp.
Family: Salicaceae
Clade: Angiospermae
Description: Deciduous, fast-growing trees with alternate, simple leaves, often featuring flattened petioles that cause a characteristic “trembling” motion. They produce pendulous catkins and distinctive cottony seeds.
Other Local Names: Pappel, Alamo, Cottonwood, Peuplier, Pioppo

Reference Colour: White
Texture: Fine
Grain: Straight
Interlocked Grain: Absent
Notes: Wood is white, often greyish or very pale brown. Sapwood poorly to not demarcated depending on species. Sometimes slightly wavy grain.

Diameter: 30÷60cm
Density @12% MC: 450kg/m³
Janka Hardness: 390lbf
Crushing Strength @12%MC: 35MPa
Static Bending Strength @12%MC: 62MPa
Longitudinal Modulus of Elasticity E: 9.8GPa
Volumetric Shrinkage Coefficient: 0.45% per %
Total Tangential Shrinkage TS: 8.3%
Total Radial Shrinkage TS: 4.8%
T/R Anisotropy Ratio: 1.7-
Fibre Saturation Point: 30%
Thermal Conductivity: 0.16W/mk
Lower Heating Value: 18430KJ/Kg
Sapwood Demarcation: Not demarcated

Resistance to Decay: Class 5 – non-durable
Resistance to Dry Wood Borers: Class S – susceptible (risk in all the wood) Atlas of Tropical Timber Species POPLAR Cross sections of Populus alba
Resistance to Termites: Class S – susceptible
Treatability: Class 3 – poorly treatable
Use Class Covered by Natural Durability: Class 1 – inside (no risk of dampness)
Durability Notes: This species is listed in the NF EN 350 standard. Treatability of heartwood is variable.

Log Buoyancy: Not applicable
Log Conservation: Low (treatment necessary)
Drying Rate: Rapid to normal
Drying Risk of Distortion: Slight risk
Drying Risk of Case Hardening: Yes
Drying Risk of Checking: Slight risk

Blunting Effect: Normal
Machining Tool: Ordinary
Suitability for Peeling: Good
Suitability for Slicing: Good
Sawing Machining Notes: Keep tools very sharp to prevent fuzzy surfaces.
Assembly Nailing Screwing: Good
Assembly Notes: Not prone to splits when nailing. Very absorbent when gluing.
Additional Notes: The strong tendancy of Poplar to be wooly makes its finish delicate
End Uses: Matches, Built-in furniture or mobile item, Framing, Moulding, Boxes and crates, Fibre or particle boards, Veneer for back or face of plywood, Pulp, Veneer for interior of plywood

Source 1: Tropical Timber Atlas, Editions Quae, e-ISBN 978-2-7592-2770-9