RoHS Full Form and Meaning: What RoHS Compliant Really Means

RoHS stands for Restriction of Hazardous Substances. It is the name used for laws that cap the amount of specific hazardous substances, such as lead, mercury and cadmium, in electrical and electronic equipment (EEE). The best-known version is the European Union’s RoHS Directive 2011/65/EU. India has its own RoHS provisions in Rule 16 of the E-Waste (Management) Rules, 2022.

If you need declarations, test planning or a technical file for India or the EU, see our RoHS and CE compliance service.

Where RoHS comes from

The European Commission’s RoHS Directive page sets out the history:

RoHS 2 has an “open scope”. The Commission’s RoHS 2 FAQ explains that from 22 July 2019 all its provisions apply to all EEE that is not otherwise excluded, including the catch-all category 11 for “other EEE”.

The 10 EU RoHS substances and limits

Annex II of Directive 2011/65/EU, as amended by Delegated Directive (EU) 2015/863, sets these maximum concentration values, tolerated by weight in homogeneous materials:

The four phthalates apply from 22 July 2019 for most EEE. For medical devices (including in vitro diagnostic devices) and monitoring and control instruments, they apply from 22 July 2021. The UK government’s announcement of the change also notes that spare parts and cables used to repair, reuse or upgrade EEE placed on the market before 22 July 2019 are not caught.

Homogeneous material is the key phrase. The RoHS 2 FAQ defines it as a material of uniform composition throughout, or a combination of materials that cannot be separated by mechanical actions such as unscrewing, cutting, crushing or grinding. Its examples are the plastic cover of a computer screen, the copper wire inside a cable and the solder of a solder joint. The limits apply to each homogeneous material separately, not to the product as a whole. A 2 kg appliance with 1 g of high-lead solder fails unless an exemption covers that use, even though lead is a tiny fraction of the total weight.

Specific uses that cannot yet avoid a substance are exempted in Annex III (all EEE) and Annex IV (medical devices and monitoring and control instruments). Each exemption has its own scope and expiry date, and the list is revised regularly, so check the current consolidated text for any exemption you rely on.

India RoHS under the E-Waste Rules, 2022

India does not have a separate RoHS law. Its restrictions sit in Rule 16 of the E-Waste (Management) Rules, 2022, which apply from 1 April 2023. In summary:

• Limits (Rule 16(1)). Every producer of EEE, and of their components, consumables, parts and spares listed in Schedule I, must ensure that new items do not exceed 0.1% by weight in homogeneous materials for lead, mercury, hexavalent chromium, PBB and PBDE, and 0.01% for cadmium.
• Exemptions. Applications listed in Schedule II are exempt, but must meet the limits given in that schedule. Spares for EEE placed on the market before 1 May 2014 may be exempt where compliant spares are not available. Equipment for defence and similar strategic applications is excluded.
• Declaration. The producer must give information on the constituents of the equipment, with a declaration of conformance, in the product user documentation, and must provide compliance information as a self-declaration.
• Market access. Import or placing on the market of new EEE is permitted only if it complies.
• Checks. CPCB conducts random sampling of EEE on the market, with sampling and testing costs borne by the producer. Non-compliant products must be brought into compliance and withdrawn or recalled.

RoHS compliance in India is linked to EPR. Producers submit RoHS information when they register on CPCB’s e-waste EPR portal. Our e-waste EPR checklist covers that link, and EPR full form and meaning explains the wider EPR system.

EU RoHS and India RoHS side by side

A product that complies with EU RoHS will usually meet India’s limits for the six common substances. The reverse is not true: an Indian-compliant product may still contain phthalates above the EU limit. The exemption lists also differ, so check each one.

What “RoHS compliant” means, and what it does not

It means that:

• every homogeneous material in the product is within the limits, or covered by a valid exemption;
• the manufacturer has evidence for this and has declared it, in the EU through the EU Declaration of Conformity and in India through a self-declaration.

It does not mean that:

• an authority certified the product. There is no official RoHS certificate in the EU or India. The RoHS 2 FAQ states that from 2 January 2013, CE marking is the only marking that attests conformity with RoHS 2. A green “RoHS” logo or a lab’s “RoHS certificate” has no legal standing of its own.
• the product is free of the substances. It may contain them below the limits or under an exemption.
• the product is safe or meets other laws. RoHS covers substances only. Electrical safety, EMC, radio and chemical laws such as REACH are separate.
• it complies everywhere. “RoHS compliant” without saying which RoHS is ambiguous.

The evidence behind a RoHS claim

For the EU, Article 7 of the Directive requires the manufacturer to draw up technical documentation and carry out internal production control in line with module A of Decision 768/2008/EC. The harmonised standard for that documentation is EN IEC 63000:2018, which replaced EN 50581:2012, as listed on the Commission’s RoHS harmonised standards page. In India, producers registering on CPCB’s e-waste EPR portal declare that technical documentation, for example to EN IEC 63000, is available for verification.

A typical RoHS file contains:

• a bill of materials broken down to homogeneous materials or parts;
• supplier declarations, and material data where available;
• a risk assessment that decides which parts need testing;
• test reports to the IEC 62321 series for higher-risk parts, such as solders, PVC cables, plastics with flame retardants, coatings and pigments;
• records of any exemptions used;
• the declaration itself: the EU Declaration of Conformity for Europe, the self-declaration and user-documentation statement for India.

For testing, choose a laboratory accredited for the specific IEC 62321 methods. Our NABL testing page and NABL full form and meaning explain how to check a lab’s scope.

XRF screening vs wet chemistry

The IEC 62321 series separates screening from confirmatory methods.

XRF screening (IEC 62321-3-1). The IEC 62321-3-1 method uses X-ray fluorescence to screen for five elements: lead, mercury, cadmium, total chromium and total bromine. It is fast and largely non-destructive, which makes it useful for sorting large numbers of parts. Its limits follow from what it measures:

• it reports total chromium, not hexavalent chromium;
• it reports total bromine, not PBB or PBDE specifically;
• it cannot detect the four phthalates, which are organic compounds without a distinctive element;
• small, thin, coated or mixed samples may not be a single homogeneous material, which affects the reading.

Confirmatory methods. Where a screening result is inconclusive, or for substances XRF cannot see, labs use the other parts of the series:

A separate screening part, IEC 62321-3-3, covers PBB, PBDE and phthalates in polymers by pyrolysis or thermal desorption GC-MS (Py/TD-GC-MS), which fills the gap XRF leaves for the organic substances.

A sensible approach screens everything by XRF and sends only the doubtful or untestable cases to wet chemistry or GC-MS. This keeps costs down without leaving gaps in the file.

How Aaditech can help

Aaditech is a private compliance consultancy; we are not an EU notified body and not part of CPCB. We map your products to India RoHS and EU RoHS, run supplier declaration campaigns, decide which parts need XRF or confirmatory testing, coordinate accredited labs and assemble the technical file and declarations. For exports, we tie the RoHS evidence into your CE mark documentation. See our RoHS and CE compliance service.