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Nickel ions can be released by some Nickel-containing materials. Prolonged direct contact with Nickel ions can cause skin sensitization and lead to allergic contact dermatitis. This has been designed as a quick in-house swab test to check for the Nickel ions from components that will come into direct and prolonged contact with skin.
Peroxide Kit is used for checking residual peroxide on the bleached fabrics.
Graduation 0.5 2 5 10 25mg/1
Graduation 1 3 10 30 100mg/1