Saltire detected the symbol, which often appears with balls in the quadrants formed by the arms of the chi-cross, in standards that appear on the coins of Persepolis. She suggested that early Christians endorsed its solar symbolism as appropriate to Christ. She also wrote: "although it cannot be proved, ... in the white saltire of St. Andrew we still have a reminiscence of the old standard of the Persepolitan kingdom". In the old European Union standard, a black saltire set in an orange square is the hazard symbol for irritants (Xi) or harmful chemicals (Xn). It indicates a hazard less severe
Black Sun (symbol) in August 2017. Additionally, the Azov Battalion, a National Guard of Ukraine regiment widely associated with neofascism, employs the symbol in an official capacity as an emblem element, along with the Wolfsangel. Along with other symbols from the Nazi era such as the Wolfsangel, the sig rune, and the totenkopf, the black sun is used by adherents of the Church of Satan and other Satanists. According to scholar Chris Mathews: Mathews notes that Satanists sometimes combine Nazi imagery, such as when the Church of Satan's online store sold Wolfsangel rings by presenting them before a Black Sun background. Mathews says,