Article in portuguese, by Fernando do Carmo (2010). See also http://www.parque-escolar.pt/pt-orientacoes--instalacoes-bibliotecas.php.
Portuguese School Libraries Network as also produced guidelines for SL facilities (2008) in lower grades schools (basic: primary - K-10 http://www.rbe.min-edu.pt/np4/194.html , and 10-15 years old students http://www.rbe.min-edu.pt/np4/195.html) as well as in high/secondary schools http://www.rbe.min-edu.pt/np4/100.html
You can always use translation tools, or... start to learn portuguese, one of the more spoken languages on Earth!
Via Leanne Windsor