The VDMA flatness requirement was included in the FEM 10.2.14 / 4.103 – 1 and from September 2021 in the European standard EN 15 620. It is therefore an official European flatness standard which must be met. This standard was developed at the request and with the approval of VNA forklift truck manufacturers, flooring contractors, engineering firms and universities, and is based on years of scientific research. VDMA is the only standard worldwide that controls all undulations that influence the driving behaviour of the forklift truck. The undulation of a floor is a combination of both (medium) long and short waiviness.
It is a favorite piece of rock trivia that "Mujer Amante" was initially considered a filler track for the album. Co-written by guitarist Walter Giardino and then-new vocalist Adrián Barilari , the song traded the band's usual high-speed neoclassical metal for a melodic, hard-rock sensibility.
The lyrics, famously composed by Barilari in his bathroom, describe a profound longing for a mysterious, ethereal woman. Mujer Amante (1990) – Rata Blanca - Observation Blogger
Against all expectations, it became their most popular song, selling over one million copies and propelling the band to massive international fame across Latin America and Europe. The Mystery of the "Lover Woman"