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4.1 Performance Requirements

Table 4.1.1 Results of Testing the Performance Requirements of the Product
Property Unit Requirement Result
Material variability flexural strength F-statistic 10 boards from each of 4 production batches Pass
density F-statistic 10 boards from each of 4 production batches Pass
chemistry N/A X-ray diffraction Pass
atomic % X-ray fluorescence Pass
Leachate pH pH pH > Gypsum board or 6, whichever is greater 8-9 pH
Free chloride ion leachate (weight of board mass) % If > 0.1%, corrosion resistant fasteners required 7
Vicker's hardness MPa ASTM E384 report value Varies 40-150
Fastening – staples (16 gauge SS316 staples, 11 mm wide × 38 mm in length) Install panels on a 12 ft. × 8 ft. wood frame and observe if breakage after 95% are installed Pass
Flexural strength of immersed samples MPa Average residual strength after immersion from each lot ≥ 90% of average strength of as-received material. The residual strength after immersion of each specimen must be ≥ 80% of average strength of as-received material. ASTM C293 Pass
Flexural strength of samples exposed to construction moisture (e.g., rain) MPa Average loss in strength of all MgOCl samples £ Average loss in strength of NBC benchmark (e.g., exterior gypsum) Pass Footnote (1)
Water vapour permeance ng/Pa·s·m2 ASTM E96, desiccant method > 170 ng/Pa×s·m2 300
Air permeance L/s×m2×Pa @ 75 Pa DP Report value (ULC S741-08) 0.0422
Fastener corrosion (mass loss compared to SS316) % Mass loss of SS316 did not exceed 0.07%. Mass loss of SS304 did not exceed 0.11%. ASTM G198-11 Pass with only 0.04% difference following 4-month test program Footnote (2)