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: 4
Number of individual trees analyzed: 5
Number of specimens: 10
Number of measurements: 33
Max PZC read (of all measurements): 19.4
Min PZC read (of all measurements): 8.1
Max PZC average on one log: 18.6
Min PZC average on one log: 8.7
PZC Average of all logs: 11.2

Species: anisoptera spp.
Family: Dipterocarpaceae
Clade: Angiospermae
Description: Large emergent rainforest trees with simple, alternate leaves and characteristic fruits featuring 2-3 prominent, elongated wings.
Other Local Names: Phdiek, Bella rosa, Ven-ven, Mai bak, Pengiran, Kaunghmu, Palosapis, Krabak, Krabak, Pik, Ven-ven

Reference Colour: Orange yellow
Texture: Coarse
Grain: Straight or interlocked
Interlocked Grain: Slight
Notes: Sometimes orangey yellow darkening to golden brown. Presence of whitish resin streaks.

Diameter: 60÷150cm
Density @12% MC: 630kg/m³
Janka Hardness: 780lbf
Crushing Strength @12%MC: 46MPa
Static Bending Strength @12%MC: 83MPa
Longitudinal Modulus of Elasticity E: 12.93GPa
Volumetric Shrinkage Coefficient: 0.52% per %
Total Tangential Shrinkage TS: 8.8%
Total Radial Shrinkage TS: 3.7%
T/R Anisotropy Ratio: 2.4-
Fibre Saturation Point: 32%
Thermal Conductivity: 0.21W/mk
Sapwood Thickness: 5÷8cm
Sapwood Demarcation: Not clearly demarcated

Resistance to Decay: Class 4 – poorly durable
Resistance to Dry Wood Borers: Class S – susceptible (risk in all the wood)
Resistance to Termites: Class M – moderately durable
Treatability: Class – 3-4 – poorly or not permeable
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.

Log Buoyancy: Floats
Log Conservation: Moderate (treatment recommended)
Drying Rate: Slow
Drying Risk of Distortion: Slight risk
Drying Risk of Case Hardening: No known specific risk
Drying Risk of Checking: Slight risk

Blunting Effect: High
Machining Tool: Tungsten carbide
Suitability for Peeling: Good
Suitability for Slicing: Good
Sawing Machining Notes: Resin exudation in steaming. Tendency to tearing on quartersawn.
Assembly Nailing Screwing: Good
Additional Notes: Filling is recommended to obtain a good finish
End Uses: Turned goods, Glued Laminated, Formwork, Interior joinery, Boxes and crates, Built-in furniture or mobile item, Veneer for back or face of plywood, Moulding, Veneer for interior of plywood, Flooring, Panelling, Sliced veneer

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