• The use of fire-extinguishing and protective equipment.
• Operation and maintenance of the charging system on the ba‐
sis of the instructions for use.
– Charging systems are only to be operated and maintained by
personnel.
– Aged 18 and above.
– Possessing the necessary technical knowledge.
– Who can be relied on to work diligently.
Note
Supervised work may also be performed by personnel that do not
meet the requirements stipulated.
Charging (a separate TRG applies to vessels from other countries
and their charging).
♦ A compressed-gas vessel is only to be filled with the com‐
pressed gas declared on it and the quantity must comply with
the stipulated pressure, weight or volume data (refer to pres‐
sure vessel regulations).
♦ In the case of vessels approved for use with several types of
compressed gas, the compressed gas with which it is to be
filled and - if the compressed gas has a tc ≥ -10° C (tc = critical
temperature) - the maximum permissible charging weight in
line with TRG 104 must be marked on the vessel prior to con‐
nection for filling.
♦ Compressed-gas vessels marked with the maximum permis‐
sible charge pressure in bar at 15° C must be filled manomet‐
rically. If, at the time of filling, the temperature is not 15° C, the
pressure corresponding to the prevailing temperature must be
established; it must be ensured that the permissible charge
pressure at 15° C is not exceeded in the compressed- gas
vessel. The charged vessels are to be checked by way of ran‐
dom pressure measurements to determine possible overfill‐
ing.
♦ Compressed-gas vessels on which the maximum permissible
capacity is indicated by the net weight (filling weight, permis‐
sible weight of fill) in kilograms must be filled gravimetrically.
The vessels are to be weighed during filling and subsequently
subjected to a weight check on special scales to establish
possible overfilling. Scales used for this purpose must be cali‐
brated.
♦ Under certain conditions, gases with a tc ≥ +70° C may be
transferred volumetrically from compressed-gas vessels with
a maximum volume of 150 l to compressed-gas vessels with
a volume of maximum 1000 ccm. The stipulations of the TRG
apply to the transfer of liquefied gas to cylinders used by work‐
men.
♦ The following TRG's applies to vehicle vessels:
– For gases with tk ≥ +70° C TRG 101.
– Industrial gas mixtures with tk ≥ +70° C TRG 102 or TRG 103:
– Liquefied extremely low-temperature compressed gases (re‐
fer to TRG 103) may, contrary to item 4, be filled volumetrically
if the charging system and/or the vessels is/are equipped with
devices for measuring or limiting the volume of the charge and
– with the exception of motor vehicle vessels as per item 3 –
for measuring the temperature of the charge. When filling
volumetrically, it must be ensured that the permissible charge
Audi 100 1991 ➤ , Audi 80 1992 ➤ , Audi A1 2011 ➤ , Audi A2 2001 ➤ , A ...
Refrigerant R134a Servicing - Edition 01.2011
14 Rep. Gr.00 - General, Technical Data
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