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Testing & Certification

Every claim we make about ETERNAL is backed by an accredited third-party laboratory. RoHS and REACH compliance, full ASTM characterisation and thermogravimetric composition — tested, documented and available to our customers.

Standards & Accreditation

Verified by independent laboratories

GoGreen operates a certified quality and environmental management system, and submits ETERNAL recovered carbon black to NABL- and ISO/IEC 17025-accredited laboratories for regulatory and performance testing.

ISO
9001

Quality Management

ISO 9001:2015 certified manufacturing and quality system.

ISO
14001

Environmental Management

ISO 14001:2015 certified environmental management system.

ISO
14064

Carbon Accounting

CO₂ impact quantified to ISO 14064-1:2018 methodology.

EU
RoHS

RoHS Compliant

Directive 2011/65/EU and Amendment (EU) 2015/863 — pass.

EU
REACH

REACH Compliant

All 242 SVHC below the 0.1% w/w Article 33(1) threshold.

ASTM
D‑Series

ASTM Characterisation

Full physical and chemical testing to ASTM carbon black methods.

Testing partners

Intertek India Pvt. Ltd. Eurofins | Spectro Analytical Labs HASETRI — ISO/IEC 17025 accredited

Regulatory Compliance

RoHS and REACH — tested, not assumed

Buyers exporting into the EU carry the compliance burden down their supply chain. ETERNAL has been screened against both the RoHS restricted substance list and the full ECHA SVHC candidate list by Intertek.

RoHS

RoHS 10 Substance Screening

Intertek India Pvt. Ltd. · Report DELH24018655
ULR TC566324424018655F

PASS

Tested against RoHS Directive 2011/65/EU and Amendment Commission Delegated Directive (EU) 2015/863 (phthalate content).

Restricted substance	Result	RoHS limit
Cadmium (Cd)	Not detected	100 ppm
Lead (Pb)	37 ppm	1,000 ppm
Mercury (Hg)	Not detected	1,000 ppm
Hexavalent chromium (Cr VI)	Not detected	1,000 ppm
PBBs — all 10 congeners	Not detected	1,000 ppm
PBDEs — all 10 congeners	Not detected	1,000 ppm
DEHP · DBP · BBP · DIBP	Not detected	1,000 ppm each

Reporting limits: 5 ppm (heavy metals, PBBs, PBDEs), 50 ppm (phthalates). Methods per IEC 62321 series. Limits quoted from Annex II of 2011/65/EU and Amendment (EU) 2015/863 for homogeneous material.

REACH

SVHC 242 Substance Screening

Intertek India Pvt. Ltd. · Report DELH24018656

PASS

Screened against all 242 Substances of Very High Concern on the applicable ECHA candidate list at the time of testing, defined under Article 57 of REACH Regulation (EC) 1907/2006.

242SVHC substances screened

<0.02%Detection limit, every substance

0.1%Article 33(1) threshold

No SVHC was detected above the 0.02% detection limit — comfortably below the 0.1% w/w threshold at which Article 33(1) safe-use information becomes mandatory. ETERNAL therefore meets Article 33(1) by default.

Analysis by a combination of GC-MS, LC-MS/MS, GC-ECD, HPLC, ICP-OES and XRF spectrometry. The SVHC candidate list is updated periodically by ECHA; screening is repeated against current lists.

Physical & Chemical Properties

Full ASTM characterisation

ETERNAL pelletized recovered carbon black tested by Eurofins | Spectro Analytical Labs against the ASTM carbon black method series — the same standards used to qualify virgin furnace blacks.

ASTM

Carbon Black — Physical & Chemical Analysis

Eurofins | Spectro Analytical Labs Limited · Report D250113041 · As-received basis

Parameter	Result	Test method
Moisture content	0.43 % by mass	ASTM D1509-2018
Ash content	19.05 % by mass	ASTM D1506-2015
Oil absorption (DBP)	94.97 ml/100 g	ASTM D2414-2022
Pellet hardness	0.32 N	ASTM D5230-2019
pH value	8.20	ASTM D1512-2015
Sieve residue (325 mesh)	5.4 mg/kg	ASTM D1514-2015
Sulphur content	1.62 % by mass	ASTM D1619-2020
Toluene discolouration (transmission)	99.10 %	ASTM D1618-2018
Fines at 125 µm	5.86 % by mass	ASTM D1508-2023
Attrition	5.00 % by mass	ASTM D1508-2023

Results relate only to the item tested. Values are representative of the tested production sample and are not a specification limit — refer to the grade TDS for specification ranges.

Pellet size distribution

As the world's first producer of pelletized rCB, consistency of pellet size is the property our customers feel first — in dosing accuracy, dust suppression and dispersion behaviour. Sieve analysis to ASTM D1511-2012, shown as a cumulative curve.

97.6%cumulative retained at 250 µm

0.88%passing 125 µm — fines fraction

Median pellet size (D₅₀) falls at approximately 0.74 mm, interpolated from the cumulative passing curve between the 500 µm and 1 mm sieves.

SieveCumulative retainedRet.Pass.

≥ 2 mm

1.10%98.90%

≥ 1 mm

27.63%72.37%

≥ 500 µm

71.30%28.70%

≥ 250 µm

97.64%2.36%

≥ 125 µm

99.12%0.88%

Cumulative % retained on and above each sieve, with cumulative % passing alongside. Derived from the discrete fractions reported under ASTM D1511-2012; totals 100.00%.

Thermogravimetric Analysis

Composition confirmed by TGA

Grade E432 analysed by HASETRI — the Hari Shankar Singhania Elastomer and Tyre Research Institute, an ISO/IEC 17025 accredited laboratory — using ASTM D6370, the reference method for rubber compound composition.

78.4%

18.3%

0%100% of sample mass

78.4%Carbon content — mass loss 300–850 °C in oxygen

18.3%Residue (ash) remaining at 850 °C

3.3%Volatiles — mass loss 50–560 °C in nitrogen

TGA

Composition Analysis — Grade E432

HASETRI, Mysuru · Order 35850925
TC-527425000001974F · ISO/IEC 17025 accredited

Test parameter	Result
Mass loss, 50–560 °C in nitrogen, then cooled to 300 °C	3.3 %
Mass loss, 300–850 °C in oxygen	78.4 %
Residue remaining at 850 °C	18.3 %

Method ASTM D6370:23. Heating and cooling ramps at 10 °C/min. Thermogram retained on file and available with the full report.

How We Test

Consistency is a process, not a certificate

A single passing report proves a sample. Repeatable quality proves a producer. Our testing runs on a defined cadence across in-house and external laboratories.

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In-house laboratory

Every production batch is tested in our own lab before release — iodine adsorption, DBP absorption, ash, moisture and sieve residue.

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Batch traceability

Each despatch carries a batch-linked certificate of analysis, traceable back to feedstock lot and reactor run.

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Third-party verification

Accredited external laboratories re-verify regulatory compliance and full characterisation on a scheduled basis.

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Customer-specific testing

Where your specification calls for parameters outside our standard panel, we will arrange the testing and share the results.

Documentation

Request test reports and certificates

Technical data sheets and safety data sheets download directly. Full third-party laboratory reports are issued to customers and qualified enquirers on request — send us a note and our technical team will share them.

Technical Data Sheets

Specification ranges, typical values and handling guidance for each ETERNAL grade.

Browse grades & TDS →

Safety Data Sheet

Classification, handling, storage and transport information for ETERNAL rCB.

Download MSDS →

ISO 9001:2015 Certificate

Quality management system certification for our Haridwar facility.

View certificate →

ISO 14001:2015 Certificate

Environmental management system certification.

View certificate →

RoHS & REACH Reports

Full Intertek test reports covering RoHS 10 and the 242-substance SVHC screening.

Request reports →

ASTM & TGA Reports

Eurofins physical/chemical characterisation and HASETRI thermogravimetric analysis.

Request reports →

Qualifying ETERNAL for your specification? Send us your test panel and we will tell you exactly which data we already hold — and arrange what we don't.

Talk to our technical team

Test results shown on this page are transcribed from third-party laboratory reports and relate only to the samples tested. They are representative values, not specification limits. Laboratory reports are the property of the issuing laboratory and are reproduced only in full. Refer to the applicable grade TDS for specification ranges.

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