The ACI 318-14 standard is available in both inch-pound (US customary) and metric units. The metric version of the standard is commonly used in Canada and other countries that have adopted the metric system. The PDF version of the standard provides a convenient and easily accessible format for designers, engineers, and contractors.
Here are some notes on PCA (Precast Concrete Association) and ACI 318-14 (American Concrete Institute) metric PDF: pca notes on aci 318-14 metric pdf
The Precast Concrete Association (PCA) is a trade association that represents the precast concrete industry in the United States and Canada. The American Concrete Institute (ACI) is a professional organization that develops and publishes standards for concrete design and construction. The ACI 318-14 standard is available in both