Dear Customers,
We will be on our Christmas break from 23 December 2025 at 1:00 p.m. and will be available again from 5 January 2026.
Please note that new registrations and requests requiring manual processing will only be handled from this date onwards.
You may, of course, place orders and access downloads online at any time.
We wish you happy holidays, a restful break, and a healthy start to the New Year!
Your DIN Media
Standard [CURRENT]
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This standard specifies requirements for gas blender training programmes. This standard specifies the competencies required of an individual in order to obtain a gas blender certificate from a training organization, attesting that he/she has met or exceeded the requirements specified in this standard. This standard specifies two levels of gas blender qualification. These are "Level 1 gas blender" as well as "Level 2 gas blender". Training programmes according to this standard can be designed and delivered in a modular way. This standard specifies the specific training requirements; in addition to this the general requirements for recreational scuba divers in accordance with ISO 24803 apply. This service standard deals in particular with quality aspects. It is simultaneously revised on an international and European level according to the Vienna Agreement procedure. The committee responsible for this standard is NA 159-02-01 AA "Tourismus-Dienstleistungen" ("Tourism services") at DIN.