Hazardous Chemical Substance Management

Hazardous Chemical Substance Management

Hazardous Chemical Substance Management

To safeguard human health and the environment, ASUS uses all chemical substances carefully. We obey regulations that control their use, formulate technical standards that strictly require our suppliers to forbid their use. ASUS defines a hazardous chemical substance as a material characterized by persistent, bio-accumulative, toxic, carcinogenic, or mutagenic features, as well as possible reproductive toxicity or environmental hormone disruption.

In 2000, ASUS established a GreenASUS department to monitor international environmental regulations; to update our hazardous substances free (HSF) technical standards; and to reduce chemicals that can harm the environment and human health.

ASUS strictly controls the use of chemicals in our products. In addition to restricting the use of chemicals regulated by the EU RoHS Directive since 2006, we also voluntarily control non-regulated chemicals such as PVC, BFRs, phthalates, beryllium, and antimony, which may cause an allergic skin reaction.

As of 2006, ASUS began a voluntary ban on use of unrestricted hazardous substances such as tetrabromobisphenol-A (TBBP-A), brominated flame retardants, and polyvinyl chloride (PVC). No ASUS product contains TBBP-A or PVC—except printed circuit boards, cables, and connectors. Since 2010, ASUS has also banned hexabromocyclododecane (HBCDD) in all products.

Since 2013, ASUS has banned the use of beryllium (Be) and antimony (Sb) in all products. Since 2015, ASUS has also banned the use of phthalates such as bis(2-ethylhexyl)phthalate (DEHP), benzyl butyl phthalate (BBP), dibutyl phthalate (DBP), and diisobutyl phthalate (DIBP) in all products.

To further control hazardous substances, ASUS has initiated a management process to improve control of restricted substances. ASUS also executes policies to encourage green technology with the goal of further advancing sustainable development practices and to offer consumers more environmentally friendly products.

In order to comply with EU REACH Directive which went effective in 2007, ASUS takes the manufacturer responsibility for disclosing the information of SHVC in our products. Please click HERE for the related information.

According to our Precautionary Policy for Green Design, we control the hazardous substances from sources - that is, of the enormous supply chain. To improve efficiency, we use eGreen platform, SRM, for component approval process and ask our suppliers to provide the third-party test report along with the hazardous substances warranty letter. This could efficiently manage our green supply chain and ensure our green quality.

ASUS' Halogen-Free Declaration

The halogens or halogen elements are a series of nonmetal elements from Group VIIA of the periodic table, and the halogenated compounds such as Brominated Flame Retardants (BFRs) and Chlorinated Flame Retardants (CFRs) are widely used as the materials of the parts for electronic products, as the gluing technique, or as flame retardant for its effectiveness and economic advantage.

However, if end of life products containing BFRs or CFRs are not properly treated and recycled, they will release dioxin and furan during the incineration process. Dioxin compounds are stored in biological fat, are hard to be metabolized, and will be cumulated through the food chain, thus they will lead to bio-genetic lesions.

According to the recent scientific researches, many halogenated compounds are proven to be potentially harmful to the human and the environment. Among the halogenated compounds, Polybrominated biphenyls (PBBs) and Polybrominated diphenylethers (PBDEs) may interfere with brain development and is carcinogenic, thus they are listed in EU RoHS Directive. In addition, TBBP-A (Tetrabromobisphenol-A) is one kind of BFRs and is used in the electronic products for its effectiveness and economic advantage, but it could pose great destructive impacts to the ecosystem. Another halogenated compound Polyvinyl chloride (PVC) is very popular worldwide for its convenience, stable characteristic and low price. Nevertheless, the plasticizer (phthalate) added during using stage will interfere with biological endocrine, and dioxin and hydrochloride produced by incineration at the disposal stage could cause serious environmental pollution.

Based on the precautionary principle, ASUS has defined many halogenated compounds such as BFRs, CFRs, TBBP-A and PVC as hazardous substances and includes them into our internal standard "Hazardous Substance Free Technical Standard" and formulated "Halogen-Free Technical Standard" according to IEC-61249-2-21, which define the allowance concentration of halogens as followed: 900 ppm max for Cl, 900 ppm max for Br, and 1500 ppm max for total halogens.

ASUSTeK has formulated "ASUSTeK GreenASUS Halogen-Free Technical Standard" in 2008 and encouraged our suppliers replacing halogen flame retardant with low environmental impact substances such as nitrogen compounds, phoshorous compounds, hydrates. We have phased in halogen-free on components with high risk, such as PCB laminate, plastic parts greater than 25g, and cable assembly. In 2009 we had introduced some halogen-free sample models to the market. Beginning from September 1, 2010, all newly purchased components, except system modules, PCBs, connectors and cables that still possess technical difficulty and are not economical viable, need to compile with halogenfree policy. ASUSTeK is committed to continuously increase the proportion of halogenfree components used in new products if alternative technologies are feasible and the technologies will not affect product performance, quality, health and the environment.

Learn more:

Other Chemical Substances Management

According to ASUS Precautionary Policy, we not only banned substances that restricted in global regulation such as RoHS and REACH, but also controlled any substance that pose a threat to human health or the environmental.

ASUS hold to a rigorous standard of environmental compliance as GreenASUS HSF Technical Standard to remove and replace toxics further and include them in our supplier contracts.

Beryllium is Alkaline-earth metal and belongs to Group IIA of the periodic table. The substitutes are not found net for its good metallic characteristic. Beryllium oxide has good performance in electrical physics, thermal physics and mechanical properties, so it is important to the use of electronic products. However, beryllium has an adverse impact on the human body during exploitation or waste disposal. In animal experiments, beryllium and its compounds is carcinogenic and toxic. ASUS has listed beryllium as Level 3 restricted substance and plans to phase out parts containing beryllium by end of 2012.

Antimony belongs to Group VA of the periodic table. Antimony trioxide is used for flame retardant. It is very popular in the market for its good characteristic and thus is difficult to phase out in a short-term. However, it could stimulate the respiratory and gastrointestinal and is toxic, and it is also a carcinogenic substance. ASUS has listed antimony as Level 3 restricted substance and plans to phase out parts containing antimony by end of 2012.

In addition, for the substances control in manufacturing process, ASUS has banned the use of benzene and n-hexane in the final assembly of products, and we verify supply chain compliance through annual on-site audits.

Table of ASUS' Controlled Hazardous Substances

ASUS's Controlled Hazardous Substances
Heavy metals Cadmium (Cd) and cadmium compounds
Lead (Pb) and lead compounds
Mercury (Hg) and mercury compounds
Hexavalent chromium (Cr6+) compounds
Nickel (Ni) and nickel compounds
Arsenic (As) and arsenic compounds
Beryllium(Be) and beryllium compounds
Antimony(Sb) and antimony compounds
Bismuth(Bi) and bismuth compounds
Cobalt (Co) and Cobalt compounds
Brominated organic compounds Polybrominated biphenyls (PBBs)
Polybrominated diphenylethers (PBDEs)
Tetrabromodiphenyl ether, Pentabromodiphenyl ether, Hexabromodiphenyl ether, Heptabromodiphenyl ether
Tetrabromobisphenol-A (TBBP-A)
Hexabromocyclododecane (HBCDD)
Brominated Flame Retardants (BFRs)
Other brominated organic compounds
Chlorinated organic compounds Polychlorinated biphenyls (PCB), Polychlorinated naphthalenes (PCN), Polychlorinated terphenyls (PCT)
Chlorinated paraffins (CP)
Polyvinyl chloride (PVC) and PVC blends
Chlorinated Flame Retardants (CFRs)
Hexachlorobutadiene (HCBD)
Tetrachlorobenzenes (TeCB)
Other chlorinated organic compounds
Organic tin compounds (including Tributyl tin compounds(TBT), Triphenyl tin compounds (TPT))
Specific Azo compounds
Expanded Polystyrene (EPS)
Ozone depleting substances
Radioactive substances
Halogenated diphenyl methanes
Perfluorooctane sulfonates (PFOS)
Perfluorooctyl acid (PFOA) and individual salts and esters of PFOA
Phthalate (DINP, DIDP, DNOP)
Bis(2-ethylhexyl)phthalate (DEHP)
Benzyl butyl phthalate (BBP)
Dibutyl phthalate (DBP)
Diisobutyl phthalate (DIBP)
Fragrance substance (Musk xylene and Musk ketone)
Pentachlorophenol (PCP)
Dimethylfumarate (DMF)
Phenol,2-(2H-benzotriazol-2-yl)-4,6 bis(1,1-dimethylethyl)
Hydrofluorocarbons (HFCs), Perfluorocarbons (PFCs), Sulfur hexafluoride (SF6)
Selenium (Se) and Selenium compounds
Polyaromatic Hydrocarbons(PAHs)
Red Phosphorous
Benzenamine, N-phenyl-, reaction products with styrene and 2,4,4-trimethylpentene (BNST)
Benzidine and benzidine dihydrochloride that have the molecular formulas C12H12N2 and C12H12N2•2HCl, respectively
Tris(2-chloroethyl) phosphate (TCEP)
Tris(1,3-dichloro-2-propyl) phosphate (TDCPP)
Substance at nanoscale