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: 5
Number of individual trees analyzed: 5
Number of specimens: 8
Number of measurements: 30
Max PZC read (of all measurements): 14.6
Min PZC read (of all measurements): 5.3
Max PZC average on one log: 12.9
Min PZC average on one log: 6.2
PZC Average of all logs: 11.0

Species: alstonia spp.
Family: Apocynaceae
Clade: Angiospermae
Description: Alstonia are trees or shrubs characterized by milky latex, simple leaves often arranged in whorls, small fragrant flowers, and slender paired fruit pods.
Other Local Names: Milk wood, White cheese wood, Chatian, Chatiyan, Shaitanwood, Pulaï, Sepati, Mai tin pet, Letok, Sega, Taun me ok, Milk wood, White cheese wood, Dita, Linog, Pagoda tree, Pattern wood, Rukattana, Thia, Mo-cua

Reference Colour: Creamy white
Texture: Medium
Grain: Straight
Interlocked Grain: Absent
Notes: Wood cream white to light yellow, aspect slightly lustrous. Grain sometimes irregular or oblique. Presence of latex canals.

Diameter: 60÷75cm
Density @12% MC: 450kg/m³
Janka Hardness: 450lbf
Crushing Strength @12%MC: 40MPa
Static Bending Strength @12%MC: 63MPa
Longitudinal Modulus of Elasticity E: 8.93GPa
Volumetric Shrinkage Coefficient: 0.33% per %
Total Tangential Shrinkage TS: 6.1%
Total Radial Shrinkage TS: 3.4%
T/R Anisotropy Ratio: 1.8-
Fibre Saturation Point: 35%
Thermal Conductivity: 0.16W/mk
Sapwood Demarcation: Not clearly demarcated

Resistance to Decay: Class 5 – non-durable
Resistance to Dry Wood Borers: Class S – susceptible (risk in all the wood)
Resistance to Termites: Class S – susceptible
Treatability: Class 1 – treatable Atlas of Tropical Timber Species
Use Class Covered by Natural Durability: Class 1 – inside (no risk of dampness)

Log Buoyancy: Floats
Log Conservation: Low (treatment necessary)
Drying Rate: Rapid
Drying Risk of Distortion: Slight risk
Drying Risk of Case Hardening: No known specific risk
Drying Risk of Checking: Slight risk

Blunting Effect: Normal
Machining Tool: Ordinary
Suitability for Peeling: Good
Suitability for Slicing: Not recommended or without interest
Sawing Machining Notes: Keep tools sharp to avoid a fuzzy surface. Filling is recommended to obtain a good finish.
Assembly Nailing Screwing: Poor
End Uses: Matches, Interior joinery, Boxes and crates, Built-in furniture or mobile item, Veneer for interior of plywood, Moulding, Panelling

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