is individually tested to 10

FE Attachment with tube

concentrated sources of pollution and is therefore suitable for tasks where the manufacturer's text and datasheet specify use for soldering

The description on the manufacturer's product page specifically indicates this application

Design: Hex-Plus (larger contact surfaces for reduced notching)

Pose ESD SB 75my 406x508mm; pk/100 16x20" MIL4903121414 is individually tested to 10. This package contains 100 ESD (Electrostatic Discharge) shield bags with a standard print. Each bag measures 406 x 508mm and is designed to protect sensitive electronic components from electrostatic discharge.