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VOC Monitoring

Speciated volatile organic compound and compressed-gas analysis by GC-MS.

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Environmental Monitoring

About VOC Monitoring

Volatile organic compounds drive both health risk and fugitive product loss, and they require speciated analysis — knowing total VOC is rarely enough when a specific compound carries the limit. CVR Labs identifies and quantifies individual VOCs by GC-MS, covering BTEX (benzene, toluene, ethylbenzene, xylenes), chlorinated solvents and the wider volatile suite in workplace air, fence-line monitoring, process vents and compressed gases.

Sampling uses sorbent tubes, canisters or impingers matched to the compound and setting, with thermal desorption or solvent extraction at the laboratory. Whether the driver is occupational exposure to benzene, a fence-line complaint or LDAR support, results are reported compound-by-compound against the applicable limit.

VOC Monitoring at CVR Labs Chennai
Most Requested

Signature tests under VOC Monitoring

The checks clients most often ask for with this service — we build the right sub-panel around your product and standard.

BTEX (benzene, toluene, xylenes)Chlorinated solventsSpeciated VOC suite (GC-MS)Sorbent tube / canister samplingCompressed-gas VOCs
Test Coverage

What we analyse under VOC Monitoring

The parameter groups below are drawn from this service's own accredited scope; the full searchable list follows.

Speciation is essential

Benzene carries a far stricter limit than other aromatics; only compound-by-compound GC-MS quantification tells you which VOC is the problem.

VOCs are health and loss

Volatiles are both an exposure hazard and lost product/feedstock; monitoring serves safety and process economics together.

Sampling must fit the compound

Sorbent tubes, canisters and impingers each suit different VOCs and settings — correct media selection makes the result valid.

BTEX & aromatics

BenzeneTolueneEthylbenzenem- & p-Xyleneso-XyleneStyreneNaphthalene

Alkylbenzenes & substituted aromatics

1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneIsopropylbenzenen-Butylbenzene4-IsopropyltolueneChlorobenzeneBromobenzene

Chlorinated & halogenated solvents

TrichloroetheneTetrachloroetheneVinyl ChlorideChloroformCarbon-chain chloroethanesDichlorobenzenes

Brominated & trihalomethanes

BromoformBromomethaneBromodichloromethaneDibromochloromethane1,2-DibromoethaneDichlorodifluoromethane
NABL Scope of Accreditation

VOC Monitoring — parameters & methods

Parameter / Test Method / Standard
1,1,1,2-Tetrachloroethane CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
1,1,1-Trichloroethane CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
1,1,2,2-Tetrachloroethane CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
1,1,2-Trichloroethane CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
1,1-Dichloroethane CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
1,1-Dichloroethene CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
1,1-Dichloropropene CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
1,2,3-Trichlorobenzene CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
1,2,3-Trichloropropane CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
1,2,4-Trichlorobenzene CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
1,2,4-Trimethylbenzene CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
1,2-Dibromo-3- chloropropane CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
1,2-Dibromoethane CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
1,2-Dichlorobenzene CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
1,2-Dichloroethane CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
1,2-Dichloropropane CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
1,3,5-Trimethylbenzene CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
1,3-Dichlorobenzene CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
1,3-Dichloropropane CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
1,4-Dichlorobenzene CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
2,2-Dichloropropane CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
2-Chlorotoluene CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
4-Chlorotoluene CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
4-Isopropyltoluene CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
Benzene CVR/INS/SOP/GCMSMS/018IS 5182 (Part 11), 2011CVR/INS/SOP/GCMSMS/026
Bromobenzene CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
Bromochloromethane CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
Bromodichloromethane CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
Bromoform CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
Bromomethane CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
Chlorobenzene CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
Chloroethane CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
Chloroform CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
Chloromethane CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
cis-1,2-Dichloroethene CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
cis-1,3-Dichloropropene CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
Dibromochloromethane CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
Dibromomethane CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
Dichlorodifluoromethane CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
Ethylbenzene CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
Hexachlorobutadiene CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
Isopropylbenzene CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
m- & p-Xylenes CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
Naphthalene CVR/INS/SOP/GCMSMS/003CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026
n-Butylbenzene CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
n-Propylbenzene CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
o-Xylene CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
sec-Butylbenzene CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
Styrene CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
t-Butylbenzene CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
Tetrachloroethene CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
Toluene CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
trans-1,2-Dichloroethene CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
trans-1,3-Dichloropropene CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
Trichloroethene CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
Trichlorofluoromethane CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
Vinyl Chloride CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
Xylene CVR/INS/SOP/GCMSMS/018CVR/INS/SOP/GCMSMS/026CVR/INS/SOP/GCMSMS/025
Need a parameter that isn't listed? Share your product and requirement and our technical team will confirm the applicable method, standard and turnaround, and advise whether it falls within our NABL scope. Contact our technical team →
Methods & Standards

How VOC Monitoring is tested

Reference methods applied

GC-MS/MS (CVR/INS/SOP/GCMSMS/018, /025, /026)IS 5182 (Part 11) — benzeneSorbent-tube / canister sampling

Where more than one standard applies, the appropriate method is selected for each sample and regulatory requirement. Individual VOCs are speciated and quantified by GC-MS/MS under validated in-house CVR SOPs, with benzene also covered by IS 5182 (Part 11); samples are collected on sorbent tubes, canisters or impingers and thermally desorbed or extracted at the laboratory — all within the accredited scope.

Accreditation & Recognition

Accreditations covering VOC Monitoring

See the Accreditations & Scope page for full certificate details.

NABL
CPCB
ISO 45001
Samples we accept

Samples we accept for VOC Monitoring

Workplace airfence-lineprocess ventscompressed gases
How It Works

From enquiry to accredited report

Enquiry & Scope

Share your site, regulatory driver and parameters; we define the plan.

Field Sampling

Trained personnel sample on-site per CPCB/IS protocols.

Lab Analysis

Accredited instruments with full chain-of-custody and QC.

Technical Review

Results checked against statutory limits and approved.

Accredited Report

Audit-ready report formatted for regulatory submission.

FAQ

VOC Monitoring — frequently asked questions

Is VOC Monitoring NABL-accredited at CVR Labs?
Yes. VOC Monitoring is performed under CVR Labs' NABL ISO/IEC 17025:2017 accreditation (Cert. NABLT0626TN18226) at our Chennai laboratory, with traceable, audit-ready reports accepted for compliance and submission.
Do you speciate individual VOCs?
Yes. We identify and quantify individual compounds by GC-MS — BTEX, chlorinated solvents and the wider volatile suite — rather than reporting only a total VOC figure.
Where can VOC monitoring be applied?
Workplace air for exposure assessment, fence-line and process-vent monitoring, indoor air investigations and compressed-gas analysis.
How are VOC samples collected?
Using sorbent tubes, Summa-type canisters or impingers selected to suit the target compound and setting, with thermal desorption or extraction at the lab.
What samples do you accept for VOC Monitoring?
We routinely handle Workplace air, fence-line, process vents, compressed gases. Share your exact sample type and target standard and our technical team will confirm the required quantity, method and turnaround.
What parameters are included in VOC Monitoring?
The VOC Monitoring panel covers 58 accredited parameters such as 1,1,1,2-Tetrachloroethane, 1,1,1-Trichloroethane, 1,1,2,2-Tetrachloroethane, 1,1,2-Trichloroethane and 1,1-Dichloroethane. The full searchable list is on this page — tell us your target and we'll map the right sub-panel for your sample.

Ready to test with an accredited laboratory?

NABL ISO/IEC 17025:2017 · ISO 9001 · ISO 45001 · CPCB · BIS — trusted since 1999.

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