It depends on the material involved
Most data centers involve using a computer keyboard and monitor and do not require the use of personal protective equipment.
Applying most wax products would not require the use of personal protective equipment.
OSHA does not establish or require dress-codes. OSHA does require that each employer assess the hazards of the workplace and require the use of personal protective equipment suitable to the circumstances.
The standard term is PERSONAL Protective equipment- usually abbreviated as PPE. These are items of equipment worn by a worker to protect THAT worker from a workplace hazard. It may typically include such items as safety glasses, ear plugs, hardhat, respirator, safety shoes, gloves, etc. Because they require a worker to use them, and use them correctly every time, they are the LEAST preferred means of protecting a worker from a hazard.
Personal Protective Equipment (PPE) is one or more items that an individual wears and that is used to protect that individual from some hazardous agent in his or her environment. The laws in some states and nations require an employer to must provide appropriate forms of PPE to their employees. Other forms may be the responsibility of the employee to purchase. Examples: Gloves, safety glasses, safety reflective vest, hard hat, safety-toe shoes, dust mask/respirator, lab coat, face shield, etc.
Radioactive pellets will require different personal protective equipment depending on the isotope present and the physical form of the pellets. If the pellets are easily crumbled to dust, then respiratory protection will be needed if engineering controls such as enclosure and negative pressure ventilation cannot be provided. If the pellets are unlikely to be crumbled into dust, respirator protection may not be needed. In either case, to prevent excessive radiation exposure, minimize time of contact, maximize distance from the material, and provide an appropriate thickness of radiation shielding.
You require a lot of heat and a vessel (usually ceramic) that can withstand the heat. You'll also require some kind of protective gear, usually a robot, that can withstand the high temperatures.
It is a good idea to be willing world in multiple and sometimes dangerous conditions. You may also require your own equipment and protective clothing.
The law that covers Personal Protective Equipment (PPE) in a workshop is most likely Occupational Safety and Health Administration (OSHA) regulations. These regulations require employers to assess the workplace for hazards, provide appropriate PPE to employees, and ensure that employees are trained on how to use the PPE correctly.
The OSHA requirements for clothing, in a warehouse or anywhere else, are that employers must assess the work place and require appropriate clothing to prevent injury. The employer must document that assessment and be able to support it objectively.OSHA does not get specific, except that clothing and other protective equipment that cannot be used outside the workplace must be provided by the employer at no cost to the employee.
This is situation dependent, taking into consideration what protective measures are put into place for the technician (i.e. just wearing latex gloves or a full protective suit) and how sensitive the experiments or samples are to contamination (i.e. hair falling into them). At the very least be tied back. It would be preferred to have long hair tied into a bun of similar fashion such that there is no risk of draping of falling into any materials. Many laboratories will require a head covering or more stringent personal protective equipment (PPE).
In many cases, a fork truck driver needs no personal protective equipment. In some cases, where the driver is working near areas where hazardous materials may be in the air, everyone - not just the driver- may require protection appropriate to the specific hazardous materials present. Many fork truck drivers will wear industrial safety glasses to protect eye sight, and industrial safety shoes to protect their toes from falling objects of intermediate weight. Sometimes they will also use some form of hearing protection, but in some locations this is not desirable as it can reduce the ability to hear other people or machines near by