10.A.07 Critical Items.
- All structural welding performed on critical items, such as scaffolding, shoring, forms, ladders, piling, etc., as well as other critical items as determined by a Qualified Person (QP), must only be performed by welders certified in accordance with American Welding Society (AWS) standards using qualified and approved welding practices and procedures (AWS certification or approved equivalent organization which trains to AWS standards).
- Welds on critical items must be inspected by either a current, AWS-certified Senior Certified Welding Inspector (CSWI) or Certified Welding Inspector (CW I) (or equivalent).
10.A.08 Before heat is applied to a drum, container, or hollow structure, a vent or opening must be provided for the release of any built-up pressure generated during the application of heat. The use of the heat or spark producing tools to create or provide venting is not permitted.
Types of Welding PPE
10.A.09 Employees performing welding, cutting, and heating work must be protected by PPE appropriate for the hazards that they may encounter and based upon the results of an AHA conducted specifically for the welding, cutting, or heating operation that they will be performing. All required respiratory, eye and face, noise, head, foot, and skin protection equipment must be selected and used in accordance with Sections 10.B, 10.C. and Section 5.
10.A.10 All welding and cutting equipment and operations must be in accordance with standards and recommended practices of ANSI/AWS Z49.1.
10.B Eye and Face Protection. The eyes and face of welders must be protected against UV and infrared radiation and flying objects during welding, grinding and chipping operations.
10.B.01 Personnel performing and/ or exposed to these tasks must have appropriate eye and face protection based on the hazards, in accordance with this section and Section 05.
10.B.02 Personnel performing and/ or exposed to work that produces UV, blue light, and Infrared light must be protected from these hazards.
- Shaded lenses must be selected based on the type of equipment and work. > See Section 5, Table 5-2.
- Protective helmets must have non-reflective surfaces and must be free of cracks or openings.
- Lenses that are cracked or pitted must not be used.
- All filter lenses must meet ANSI Z87.1.Ultraviolet, Luminous, and Infrared Transmittance requirements.
- Welding Helmets must always be used in conjunction with ANSI Z87.1 rated safety glasses with top and side protection.
- Electronic-shading welding helmets must not be used for welding processes requiring a higher shade than the helmet is capable of. Most auto-darkening helmets are not suited for welding processes requiring a Filter Shade of 14 or higher.
Knowledge Check Choose the best answer for the question.
10-2. Why is a vent or opening needed before heat is applied to a drum, container, or hollow structure?
You forgot to answer the question!