1. In-Service Inspection German ExperiencesF
REISTAAT T
HÜRINGEN
Landesbetrieb für Arbeitsschutz und
technischen Verbraucherschutz
In-Service Inspection German Experiences
Michael Borzel
Thuringian Authority of Occupational Health and Safety
Department of Technical Consumer Protection and Market Surveillance
TAIEX- Workshop, Bucharest 27. Feb Mar. 2007

2. T O P I C S
L e g i s l a t i o n
E x p e r i e n c e
G u i d e

3. L e g i s l a t i o n - Review
Instructions
for
Manufacturing
and
Operation
- instructions combined in one statuary ordinance
- restrictive regulations for manufacturing
- solid base for a fixed scope of in-service inspection

4. Scope of In-Service Inspection
- examination of the accompanying documents
- check of the necessary equipment
- are the conditions of placement in proper style
Documen-
tation
Manometer
Safety Valve
Shut-off device
Drain Nozzle

5. L e g i s l a t i o n - Review 10 years for the pressure test
Instructions
for
Manufacturing
and
Operation
- fixed prescriptions for periodical examination
5 years for the check of the inside wall of the vessel
10 years for the pressure test

6. L e g i s l a t i o n - Today Ordinance Ordinance for for
Placing on the market
Ordinance
for
Use / Operation

7. Time Limits in ComparisonD 5 L 5 NL 4 S 3 GB
2,17 F
1,5-3 B
1-3 I
1-2
years for the check of the internal surface of the vessel
Source: VdTÜV

8. Scope of In-Service Inspection
- examination of the accompanying documents
- (check of the necessary equipment)
- conditions of placement (surroundings)
Declaration of
Conformity
Instructions
for
Use

9. Scope of In-Service Inspection
c‘d
- determination of inspection intervals
confirmation by an approved body (P * V > 200 bar litres)
max. intervals - 5 / 10 years !!
Instructions
for
Use

10. Defining the Inspection Intervals
Instructions
for
Use
direct from the manufacturer
Examples:
... an inside corrosion test should be carried out at quarterly intervals.
... check the condition of the inside of the walls once a
year.
... for maintenance and installation, the general technical
rules are to be observed.

11. Defining the Inspection Intervals
c‘d 1 4 3 2 5
years
quarterly
once a year
possible

12. The Guidance Design / Fabrication Documented Quality
- EC type-examination / certificate of adequacy
- module G / Module B+D
Documented Quality
- design code,
- wall thickness
- corrosion allowance
- ……

13. The Guidance Results of the In-Service Inspection
c‘d
Results of the In-Service Inspection
- equipment
- conditions of placement
Operating Conditions which influence lifetime
- number of stress cycles
- pressure pulsation
- drainage

14. missing or incomplete documents
Implementation
Advice
first short - then longer periods
Problems
missing or incomplete documents
poor workmanship

16. Thank you
for your attention