PCB Soldering Safety

Dated:2017-10-24      Popularity:1452

PCB soldering is widely used from PCB assembly to BGA placement, cable assembly to SMT assembly. Before starting work, please learn the risk assessment and chemical safety information that should can protect yourself a lot.

PCB Soldering

Control of Fumes
a.Rosin soldering can only be used under strict control of the conditions with the safety office after discussion, where there is no effective alternative. Fume extraction should be done by an enclosed hood (preferably) or tip extraction. Ideally, these should vent to the outside. Tip extract units that use filter boxes should include both activated carbon and HEPA filters.
b.The bench top filter extraction system can be used for rosin-free soldering in well-ventilated areas (i.e. large volume work space or with mechanical air changes) and the placement of these systems is important for performance.
c.All extraction systems should be tested at least once a year and maintained (i.e. regularly replace the filter). Keep a log when change or mark on the filter/system.

Electrical Safety
a.Do not use a soldering iron that has significant damage to the body, cable, or plug.
b.All soldering irons should have electrical safety (PAT) test in the last 12 months.
c.If there is a short circuit possible, please use a ground socket and ground pin.

First Aid
Place any burns in cold water for 15 minutes at once.

Fire Prevention
a.Work on a fire-proof or fire resistant surface.
b.Wear a fire resistant cloth (i.e. 100% cotton) to cover your arms and legs to prevent accidental burns.
c.Know where is your nearest fire extinguisher, and how to use it.

Lead Exposure
Lead can cause serious chronic health effects. Exposure will be mainly caused by accidental ingestion from your skin, wear gloves if needs handling solder directly. Limited fumes may be produced by soldering. 

Rosin Exposure
Rosin is the resin contained in solder flux. Flux produces visible fumes during soldering. Exposure to rosin can cause eye, throat and lung irritation, nose bleeding and headache. Repeated exposure can cause respiratory and skin allergies, leading to aggravating asthma. 

Solder and Cleaning
a.Wear eye protection.  
b.Use rosin and lead-free solder as much as possible.
c.After soldering, be sure to wash your hands with soap.

Soldering Iron

PCB Soldering Iron
a.Never touch the element of the soldering iron. It can reach 400°C!
b.Hold wires to be heated with tweezers or clamps.
c.Keep your cleaning sponge wet when used.
d.When not in use, always return the soldering iron to its stand. Never put it on the workbench.
e.Turn off the device and unplug the power when not in use.

a.Label appropriately and dispose of as hazardous waste.
b.Used solder sponge and contaminated wipes should be placed in a sealed bag treated as the hazardous waste.

PCB Soldering  

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