Bis Certification For P-xylene According to Bureau of Indian Standards BIS ISI Certification is mandatory for P-xylene. It is an aromatic hydrocarbon and is used primarily as a building-block chemical in the manufacture of PET plastics and polyesters. All P-Xylene IS standards IS 17370:2023 are now covered under the mandatory ISI certification scheme and without ISI mark, this product is ineligible for marketing, import or export in the Indian consumer market. Aleph India provides best consultancy services for P-Xylene in India, facilitating BIS licensing as per IS 17370:2023. We provide comprehensive end-to-end support and guidance during the BIS certification process.