QUALITY ASSURANCE
Every batch documented. Every shipment verified.
Quality management at Nishka begins before a raw material enters the facility. Incoming testing, in-process checks, final batch release, and Certificate of Analysis — documented for every order. ISO 9001:2015 certified manufacturing in Vapi.
CERTIFICATION
ISO 9001:2015 certified.
ISO 9001:2015 is the international standard for quality management systems. Certification at the Vapi facility covers documented batch records, supplier qualification, calibrated test instruments, customer feedback protocols, and scheduled internal audit cycles. The certificate is renewed on the standard audit schedule and is available on request.
Full quality pageQUALITY PROCESS
How quality is maintained at every stage.
Supplier qualification
Raw material suppliers are qualified against a defined approval procedure before being added to the approved supplier list. Ongoing supplier performance is monitored and re-evaluated on the ISO 9001:2015 schedule.
Incoming raw material testing
Every incoming raw material delivery is tested against specification before release to production. Incoming test reports are recorded and retained as part of the production batch record. Non-conforming materials are quarantined and rejected — they do not enter production.
Documented batch manufacturing
Manufacturing instructions governing each production batch are documented and version-controlled. Operators follow the batch manufacturing record step-by-step. Any deviation from the documented procedure requires investigation and recorded disposition before the batch continues.
In-process control
In-process checkpoints verify intermediate product against specification at defined stages during manufacturing. Viscosity, appearance, and key intermediate properties are measured at specified points in the process.
Final batch release testing
Every batch is tested against the full specification listed in the TDS: viscosity (kinematic, at 25°C), refractive index, specific gravity, appearance, active content, and applicable identity tests. The batch is held in quarantine until all values are confirmed within specification by QA.
Certificate of Analysis
A Certificate of Analysis is generated for each released batch, listing the measured values for all tested parameters alongside the specification limits. CoA is available on request for every shipment and is retained in the batch record for 24 months from release date.
Retain samples
Retain samples from every production batch are held at defined storage conditions for 24 months from date of manufacture. Available for testing or re-analysis if required by the customer or triggered by a complaint investigation.
Internal audit and management review
Internal quality audits are conducted to the ISO 9001:2015 schedule. Management reviews confirm system effectiveness and track continuous improvement actions to closure. Audit records are maintained and available to customers for supplier qualification purposes.
DOCUMENTATION AVAILABLE
What we provide with every shipment.
ISO CERTIFICATE
ISO 9001:2015 — View the certificate.
Current certificate covering the Vapi manufacturing facility. View in-browser or download for your supplier qualification file.