grabfert.blogg.se - Silica dust

Undergo a qualitative or quantitative fit-test at least annually.Do a positive/negative fit check every time they put a respirator on.They are medically approved to wear one.The respirator's protection factor is suitable for the exposures being encountered.The filter will filter out the particle size employees are being exposed to, as well as any other hazardous materials, such as solvents, that may be present.They are using the right one for the type of material in question.If your employees are using one, then make sure that they are doing so via a respirator protection program that meets Section 5144 requirements, including: Use compressed air to clean dust off of surfaces, equipment or yourself.Work with materials dry unless you also have a good exhaust system or there is simply no other way to do it safely, in which case a good respirator protection program will be necessary.Use a water mist to keep airborne dust down.Wet materials before disturbing, unless that creates significant muscular skeletal strain, slip or other safety hazards.Use vacuums and exhaust systems with adequate filtration.Wet sweeping where possible using water or a sweeping compound.Work with materials in a way that minimizes the generation of airborne dust.This will include ensuring water flow rates within specifications. Set up and maintenance of the equipment according to the manufacturer's instructions.Systems meeting Nationally Recognized Testing Lab (NRTL) approval requirements for electrical systems in wet conditions, including GFCI-protected electrical sources.Use a wet-cutting system that minimizes the generation of dry dust.

User training on the proper use and maintenance of the equipment.NOTE: Maintenance of the system can result in significant dust exposures, so respiratory protection may be needed. This includes ensuring the dust collectors are serviced as needed.

The system needs to be maintained to ensure optimal air exhaust.

This includes using the shortest flexible ducting with the least amount of bends.

The users need to make sure it is consistently set up according to the manufacturer's specifications, and remains so throughout its use.

This means an exhaust hood design that allows for effective capture of airborne dust.

The exhaust system needs to be properly designed in order for it to effectively control exposure.

Use a local exhaust or vacuum tool system that removes airborne dust before it gets to the breathing zone of the operator or surrounding employees. There may be considerable dust contamination that can easily become airborne due to traffic and other activities, such as clean up. In both cases, careful attention is needed where employees need to enter the affected area once the process has stopped or the enclosure has been removed.

Establish a perimeter around the source of the airborne dust to keep employees away and prevent exposures.

Enclose the work so all dust is contained within the enclosure and all employees are outside.