Model Cat : PT-138
| Description |
|---|
| FLOW CUP VISCOMETERS for measuring viscosity of paints, varnishes, lacquers and other viscous products, as per I.S. |
| Technical Specification | |
|---|---|
| Supplied with | Stand |
| NABL version | PT-139 with NABL certificate as per IS 3944 |
| HSN Code | 90278010 |
| Models Available | |||
|---|---|---|---|
| Cat. No. | Type | Viscosity Range (stokes) | Used For |
| PT-138/05 | B-2 | up to 0.5 | Spirit lacquers |
| PT-138/10 | B-3 | 0.5 – 1.2 | Heavy liquids |
| PT-138/15 | B-4 | 0.8 – 2.5 | Heavy liquids |
| PT-138/20 | B-5 | 1.5 – 5.0 | Heavy liquids |
| PT-138/25 | B-6 | 6.0 | Heavy liquids |
Description
PT-138 flow cup viscometers from Popular Traders, Ambala measure the viscosity of paints, varnishes, lacquers and other viscous products as per Indian Standards. They are supplied with a stand, in five cup types from B-2 to B-6.
Key features
- Flow cups as per Indian Standards, supplied with stand
- Five cup types covering up to 6 stokes
- NABL-certified version available (PT-139, as per IS 3944)
Models available
- PT-138/05: type B-2, up to 0.5 stokes, spirit lacquers
- PT-138/10: type B-3, 0.5–1.2 stokes, heavy liquids
- PT-138/15: type B-4, 0.8–2.5 stokes, heavy liquids
- PT-138/20: type B-5, 1.5–5.0 stokes, heavy liquids
- PT-138/25: type B-6, 6.0 stokes, heavy liquids
Applications
- Paint and varnish manufacturing QC
- Lacquer, ink and coating industries
- Quality labs and colleges
Which model should I choose?
Choose the cup type by your product’s viscosity: B-2 for thin spirit lacquers, B-4 for most paints, and B-5 or B-6 for heavy liquids. Order PT-139 when you need an NABL certificate.
Made in India by Popular Traders
Popular Traders has made laboratory equipment in Ambala, Haryana since 1942. We are ISO 9001:2015 certified, ZED Silver certified, MSME registered and an approved supplier on GeM. Most models are dispatched within about 1 week of your order. Send us an enquiry for the price and warranty terms for the model you need. Custom sizes and OEM supply are available on request.
Frequently asked questions
What do PT-138 flow cups measure?
The viscosity of paints, varnishes, lacquers and other viscous products.
Which standard do they follow?
Indian Standards; the NABL-certified PT-139 is as per IS 3944.
Which cup types are available?
B-2, B-3, B-4, B-5 and B-6.
Is a stand included?
Yes, each cup is supplied with a stand.
Is an NABL-certified cup available?
Yes, order PT-139.
QUALITY & CERTIFICATIONS

ISO 9001:2015 certified • Registered on GeM • ZED certified • Make in India



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