Stichting Keuringsbureau Hout, the independent certification body of the Dutch timber industry, certifying products, processes and people and accredited by the Raad voor Accreditatie (C019). In fire safety, SKH certifies firms against BRL 0602, the assessment guideline for treating timber and timber products with fire-retardant agents under vacuum and pressure — the basis for certifying structural or cladding timber as flame-retardant treated to a Dutch standard.