BIS Certification for AUS 32 Diesel NOx Reduction Agent IS 17042 Part 1:2020 - Pristine Fluids Private Limited, Nandigama, Andhra Pradesh | Standphill India

Standphill India successfully completed BIS ISI Mark certification under IS 17042 Part 1:2020 for Pristine Fluids Private Limited - a manufacturer of AUS 32, the diesel engine NOx reduction agent, based at 4-123, Kuraganti Vari Kandriga, Chandapuram, Nandigama, NTR District, Andhra Pradesh. The BIS license bearing number 660010**** was officially granted on January 28, 2025. Standphill India managed the complete certification from factory assessment to final license grant.

Pristine Fluids Private Limited is an AUS 32 manufacturer based in Chandapuram, Nandigama - a town in NTR District of Andhra Pradesh, situated along the highway corridor between Hyderabad and Vijayawada. The company name itself signals the product's defining characteristic - purity. AUS 32 is a chemically sensitive fluid where even trace contamination by metals or incorrect urea concentration can damage SCR catalyst systems in diesel vehicles. Pristine Fluids' commitment to producing high-purity AUS 32 is reflected in their successful BIS certification under IS 17042 Part 1:2020.

Andhra Pradesh is one of South India's most active commercial vehicle markets - with significant freight movement along the Hyderabad-Vijayawada-Chennai corridor, large agriculture and construction equipment fleets, and a rapidly growing logistics sector. All BS6 diesel vehicles and commercial engines operating in the state require a continuous supply of quality AUS 32 to function within emission norms. Pristine Fluids supplies this demand from their Nandigama facility - and BIS certification under IS 17042 Part 1:2020 positions them to supply to fleet operators, automotive dealers, and fuel retail networks across Andhra Pradesh and the broader South Indian market. Standphill India was engaged to manage the complete certification and the license was granted on January 28, 2025.

IS 17042 Part 1:2020 is the Bureau of Indian Standards specification for AUS 32 - the 32.5% aqueous urea solution used in Selective Catalytic Reduction systems to convert harmful nitrogen oxide emissions from diesel engines into harmless nitrogen and water vapour. This standard is the mandatory quality benchmark for AUS 32 manufacturers in India - defining the precise chemical composition and purity requirements that protect SCR catalyst systems from damage and ensure effective emission reduction performance.

Key requirements under IS 17042 Part 1:2020 include:

Urea concentration - must be 32.5% by weight within ±0.7% tolerance — neither more nor less

Refractive index - a rapid field verification parameter for urea concentration

Density - corresponding to 32.5% urea concentration at the specified temperature

pH value - within the defined alkalinity range

Biuret content - urea decomposition product that damages SCR catalysts — must be strictly below defined limits

Aldehyde content - within specified limits to prevent catalyst poisoning

Heavy metal contamination - iron, copper, zinc, chromium and other metal content controlled to extremely low limits measured in parts per million

Calcium, magnesium, sodium, potassium - controlled to prevent mineral scaling in SCR systems

Phosphate content - below defined limit

Marking and labelling - BIS ISI Mark and batch identification correctly applied to certified AUS 32 packaging

BIS certification under IS 17042 Part 1:2020 is mandatory for all AUS 32 manufacturers in India. Automotive OEMs, vehicle dealers, fleet operators, petrol pump dispensing networks, and commercial vehicle service centres all require BIS-certified AUS 32 — making IS 17042 Part 1:2020 certification a direct commercial requirement for any serious AUS 32 manufacturer in India.

Standphill India conducted a pre-audit gap analysis at the Nandigama facility - assessing the water purification system, urea sourcing and grade verification, mixing and blending process controls, storage vessel and filling line cleanliness and contamination prevention, in-house testing laboratory capability for IS 17042 Part 1:2020 parameters, and documentation. All compliance gaps were addressed before the BIS application was filed.

Complete BIS ISI Mark license application documentation was prepared under IS 17042 Part 1:2020 - covering AUS 32 product specifications, raw material quality details for urea and purified water, manufacturing process documentation, quality control procedures for all IS 17042 parameters, laboratory equipment information, and all required declarations. The application was filed through the BIS portal after full verification.

AUS 32 samples were tested at a BIS-recognised chemical testing laboratory for all IS 17042 Part 1:2020 parameters - urea concentration, refractive index, density, pH, biuret content, aldehyde content, and all heavy metal and mineral contamination parameters - with first-attempt clearance. On-ground audit support was provided during the BIS factory inspection at Nandigama. Post-audit follow-up was handled until license 660010**** was officially granted on January 28, 2025.

Standphill India has delivered IS 17042 Part 1:2020 BIS certifications for AUS 32 manufacturers across India - including in Andhra Pradesh and Gujarat. We understand the chemical manufacturing requirements, the precision testing involved, and what BIS auditors evaluate in an AUS 32 production facility.

With BS6 emission norms driving consistent and growing demand for certified AUS 32 across India's commercial vehicle fleet, having your BIS license in place is both a legal requirement and a direct market access advantage across Andhra Pradesh, Telangana, and South India.

Contact Standphill India today for a free consultation on your IS 17042 Part 1:2020 BIS certification.

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