Leak testing (LT) Level 1 according to DIN EN ISO 9712

Training

Training must cover the training content recognised by the LT technical committee. The minimum training time is 5 days. (The duration of a training day is at least seven hours, which may be completed on a single day or by accumulated hours.)

Examination centres

A list of authorised examination centres is available on the Locations page.

Among others: Leybold Academy (LT1/LT2)

Examination procedure

SectionExplanationDuration
Identification of participants, examination rules, preparation
General examination element40 questions80 min
Break
Specific examination element30 questions90 min
Break
Practical examination element

180 min

Number of examination specimens for initial examination

Three examination specimens shall be used, and the second and each further specimen must differ in nature from the preceding ones, e.g. by product form, material properties, shape, size and type of discontinuity.

Industrial sector1st specimen2nd specimen3rd specimen
ISTGDGTG oder DG

Dates

Course no. Training Examination Organiser, location
LT-26-331 Initial 21.09.2026 - 25.09.2026 26.09.2026 VECTOR mit Leybold, Köln