BIS Issues Wide Circulation Draft for Tetrahydrofuran Specification
Reference source : BIS
On October 22, 2026, the Bureau of Indian Standards (BIS) issued a Wide Circulation Draft proposing a new Indian Standard titled ‘Tetrahydrofuran — Specification’. The draft has been prepared by the Organic Chemicals, Alcohols and Allied Products Technical Committee (PCD 9) and invites comments and suggestions from stakeholders for further improvement. The deadline for submitting comments is December 21, 2026.
Background
Tetrahydrofuran (THF), CAS 109-99-9 is a cyclic ether widely used as an industrial solvent and intermediate in the manufacture of polymers, resins, coatings, adhesives, inks, pharmaceuticals and agrochemicals.
Scope
This standard prescribes the requirements, methods of sampling and test methods for tetrahydrofuran (THF).
Requirements
|
Sr. No. |
Characteristics |
Requirements |
|
1. 2. 3. 4. 5. 6. 7. 8.
|
Purity, percent by mass, Min Moisture content, ppm, Max THF Peroxides, ppm, Max Butylated hydroxytoluene (BHT) content, ppm Residue on Evaporation, mg/100 ml, Max Relative Density at 20 °C/20 °C, g/ml Total impurities, ppm, Max Colour, Pt-Co, Max |
99.50 300 50 250 to 400 10 0.886 to 0.890 400 |
Packing and Marking
- Use airtight ISO containers, stainless steel drums, bulk containers or other mutually agreed containers to prevent leakage, evaporation and contamination. Inert gas blanketing may be used.
- Each container shall display the material name, manufacturer details,manufacturing date, net mass, lot/batch number and applicable statutory information.
- Products conforming to this standard may be certified under the conformity assessment schemes of the Bureau of Indian Standards Act.