How was this developed and how do I trust its credibility/Expertise?

The membership of the ISO/WG SR was the largest and the most broadly based in terms of stakeholder representation of any single group formed to develop an ISO standard. Six main stakeholder groups were represented: industry; government; labour; consumers: nongovernmental organizations; service, support, research and others, as well as a geographical and gender-based balance of participants.

Under the joint leadership of the ISO members for Brazil (ABNT) and Sweden (SIS), it was made up of experts from ISO members (national standards bodies – NSBs) and from liaison organizations (associations representing business, consumers or labour, or inter-governmental or nongovernmental organizations). Membership was limited to a maximum of six experts per NSB and two experts per liaison organization.

In July 2010, the ISO/WG SR had 450 participating experts and 210 observers from 99 ISO member countries and 42 liaison organizations. The ISO national members bodies (NSBs) of 83 countries nominated experts to participate whilst the ISO members of 16 countries observed the work of the ISO/WG SR. About 42 organizations had liaison status with the ISO/WG SR and nominated experts to participate in its work.

NB:

The International Standard ISO 26000:2010, Guidance on social responsibility, provides harmonized, globally relevant guidance for private and public sector organizations of all types based on international consensus among expert representatives of the main stakeholder groups, and so encourage the implementation of best practice in social responsibility worldwide.