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[PDF] ASTM C474 – 15(2020) gratis

Fecha de publicación: 01/06/2020 Standard Test Methods for Joint Treatment Materials for Gypsum Board Construction ASTM C474 – 15(2020)

[PDF] ASTM E973 – 16(2020) gratis

Fecha de publicación: 01/06/2020 Standard Test Method for Determination of the Spectral Mismatch Parameter Between a Photovoltaic Device and a Photovoltaic Reference Cell ASTM E973 – 16(2020)