Guidance on Classification of Eye Protection Equipment in Welding Work

02:08, 11/07/2024

On December 28, 2016, the Ministry of Labor, War Invalids, and Social Affairs issued Circular 49/2016/TT-BLDTBXH promulgating the national technical regulations for personal eye protection equipment used in welding work.

According to the provisions set forth in Circular 49/2016/TT-BLDTBXH, personal eye protection devices used in welding work are classified as follows:

Classification by type and shape:

- Glasses with or without frames;- Closed-type protective glasses;- Masks;- Handheld face shields;- Protective headgear.

Classification by lenses:

- Glass lenses (including both brittle glass lenses and chemically, thermally, and impact-resistant glass lenses);- Lenses made of organic compounds;- Multi-layer lenses: lenses made from multiple layers bonded together with adhesive.

Classification by protective function

Personal eye protection devices used in welding work may have one or more of the following functions:

- Protection against impacts from various hard objects;- Protection against optical radiation;- Protection against splashes of molten metal;- Protection against falling and splashing liquids;- Protection against dust;- Protection against gases;- Any combination of the above factors.

More details can be found in Circular 49/2016/TT-BLDTBXH, effective from August 1, 2017.

- Thanh Lam -

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