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ATEX is an abbreviation for the French term “ATmosphères EXplosibles”. It is an explosion protection directive under the EU’s mandatory CE certification. The scope of equipment to which this instruction applies is very wide; it generally includes equipment used in fixed offshore platforms, petrochemical plants, flour mills, and other locations where potential explosive environments may exist. https://p1-tt.byteimg.com/origin/pgc-image/a8f1cf2c29c84de4b6361f27ed0789d0?from=pc We know that devices that seek explosion-proof certification are equipped with an explosion-proof mark. What are the differences between the explosion-proof certification mark required by the EU’s ATEX standard and those used in China? Take the following ATEX explosion-proof certification mark as an example: https://p1-tt.byteimg.com/origin/pgc-image/7dddb4c1fe074bf2b139feeda0c014d7?from=pc CE: ATEX is an explosion-proof directive under the EU’s CE certification system; it also falls under the CE certification framework. xxxx: The code of the EU notifying body – ATEX certifications can only be issued by notifying bodies in the EU; no such bodies exist in China. The currently authoritative ATEX certification bodies include TÜV Rheinland, TÜV Süd, TÜV Nord, CSA, BV, Euroclass, and others. Hexagonal mark: This is a mark specific to ATEX certification. II: Indicates non-mining equipment; it is divided into categories I and II, with I referring to mining equipment and II referring to non-mining equipment (including areas with gases and dust). 2: The explosive area is classified as Zone 1, which is further divided into Zones 1, 2, and 3. These correspond to Zones 0, 1, and 2 in international/domestic explosion-proof classification systems – that is, 1 corresponds to Zone 0, 2 corresponds to Zone 1, and 3 corresponds to Zone 2. (Note: Internationally, based on explosive substances and the duration of their presence, explosive gas areas are classified into Zones 0, 1, and 2, while explosive dust areas are classified into Zones 20, 21, and 22.) G: stands for Gas; this device is intended for use in environments with explosive gases. Divided into G and D, where D stands for Dust, referring to areas with dust. Ex: indicates explosion-proof; d: indicates flameproof type. Internationally, the protection types for explosion-proof equipment include flameproof type d, intrinsic safety type i, increased safety type e, etc. If there are multiple explosion-proof protection types, they are sorted in alphabetical order according to their codes. ⅡC: Indicates the gas category; the representative gas is hydrogen. T4: Temperature category – the maximum surface temperature of the equipment does not exceed 135°C, with categories T1, T2, T3, T4, T5, and T6. Gb: The protection level EPL of the device, corresponding to devices used in Zone 1 explosive areas.