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RoHS Wires & Cables

Restricted substances & allowable limits

  • RoHS is often referred to as the lead-free directive, but it restricts the use of the following 6 substances.
  • The Maximum allowable values in weight percent in homogeneous material
    • Lead - (0.1%)1000 PPm
    • Mercury- (0.1%) 1000 PPm
    • Cadmium – (0.01%)100 PPm
    • Hexavalent Chromium- (Chromium VI or Cr6+) – (0.1%)1000PPm
    • Polybrominated biphenyles (PBB)- (0.1%) 1000PPm
    • Polybrominated diphenyles ethers -(PBDE) - (0.1%) 1000PPm

Effect of The banned substances on human health Lead (Pb)

Lead

  • Lead is a highly toxic metal that was used for many years in products found in and around our homes. This is the most common metal that applied in most industries, especially electronic industry.
  • Lead may cause damage to the brain and nervous system, affect memory and human concentration.
  • Lead, we can commonly find in our soldering process, glass, ceramics, plastic stabilizers, paints, etc.

Mercury (Hg)

  • Mercury is a highly toxic metal, It can be vaporized and enter into our atmosphere which may be transported over long distances by air. After aerial deposition, mercury can continue to exist in the environment and bioaccumulation in the food chain.
  • In terms of human exposure, the main exposure pathways are via the inhalation of vapours and via ingestion in food.
  • Mercury can cause adverse effects to blood, kidneys, and the nervous system.

Cadmium (Cd)

  • Cadmium tends to bio-accumulate. The major route through which humans are exposed is via the food chain.
  • Cadmium accumulates in kidneys, where it damages filtering mechanisms.
  • Examples are liver, mushrooms, shellfish, cocoa powder etc.
  • It is observed in pigment and stabilizer, electrical contact, Design control Relays and switches, Semiconductors, electroplating additives.

Hexavalent Chromium (Cr 6+)

  • Hexavalent chromium (Cr 6+)) can have a wide range of adverse effects on humans ranging from irritation to cancer.
  • The potential effects of Hexavalent chromium vary mainly with the amount absorbed into the bloodstream.
  • It is observed in hard chrome plating, corrosion resistance paints & electroplating additives.

PBB (Polybrominated biphenyls) and PBDE (Polybrominated diphenyl ethers)

  • They are known to occur in the air, in water, in soil, in marine and freshwater sediments.
  • It is also observed in plant and animal tissues.
  • The potential effects are mainly with the amount absorbed into the bloodstream.
  • Exposure to PBB and PBDE may lead to an increased risk of cancer.
  • Flame retardants in printed circuit boards, connectors, and plastics.

As PVC is concern, mostly only one substance is presented, that is pb –LEAD. We, test all input for this contains, and we assure >100ppm of lead in PVC compound & its colors.

Disclaimer: This information is to the best of our knowledge & accurate but all recommendations or suggestions are made without guarantee since the conditions of use are beyond our control. The typical values given do not constitute specification for the product but represent typical analytical values.