Directive 97/23/EC of the European Parliament and of the Council of 29 May 1997
on the approximation of the laws of the Member States concerning pressure equipment
Annex I
3. MANUFACTURING
3.3. Marking and labelling
In addition to the CE marking referred to in Article 15, the following information must be provided
(a) for all pressure equipment:
- the name and address or other means of identification of the manufacturer and, where appropriate, of his authorized representative established within the Community,
- the year of manufacture,
- identification of the pressure equipment according to its nature, such as type, series or batch identification and serial number,
- essential maximum/minimum allowable limits;
(b) depending on the type of pressure equipment, further information necessary for safe installation, operation or use and, where applicable, maintenance and periodic inspection such as:
- the volume V of the pressure equipment in L,
- the nominal size for piping DN,
- the test pressure PT applied in bar and date,
- safety device set pressure in bar,
- output of the pressure equipment in kW,
- supply voltage in V (volts),
- intended use,
- filling ratio kg/L,
- maximum filling mass in kg,
- tare mass in kg,
- the product group;
No gross weight required on anything that falls under PED 97/23/EC & EN3 has to follow suite.
I don't think any manufacturers CO2's have had gross weight stamped on for some time now.
