On a forum, in English, ISO can also mean "In Search Of". Much like OTOH "On The Other Hand" and IMHO "In My Humble (or Honest) Opinion", LOL "Laugh Out Loud" and ROTFL "Rolling On The Floor Laughing". It is shorthand, to avoid having to type everything out.ISO stands for International Organization for Standardization. ISO Certification proves that businesses say what they do, and do what they say. ... In fact, ISO stresses customer focus in every aspect of its structure. ... (not customer) to ensure they have all the information they need prior to accepting or producing a product.