Get a Quote
To request a quote, Email info@welos.com.pk or call the laboratory at 042-37334448
Bottle Order
Clients can request sample containers from the laboratory by filling up the bottle request form or you can directly e-mail your project manager to request for bottles and have them fill up the form for you.
[DOWNLOAD BOTTLE REQUEST FORM]
Sampling Instructions
Sampling Guidelines
- Always use proper sampling containers, preservatives and provide enough sample for analysis. Click herefor a list of proper sampling containers, preservatives and minimum volume of sample per test.
- Samples must be sent to the laboratory before holding time expires. The following are the tests with short holding time: pH – 15 min, Nitrate, Nitrite, O-Phosphate, BOD, MBAS, Turbidity, Settleable Solids – 48 hrs. For a complete list of holding time information, click here.
- Aqueous samples for volatiles should be collected on 40 mL VOA vial with zero headspace or bubble if present should not be greater than 5 mm.
Shipping Instructions
There are several ways you can send samples to the laboratory:
- Request for sample pick-up by calling the laboratory at 042-37334448
- If you are sampling around the area of the laboratory, you can also drop off samples personally at the laboratory. WELCOS is located at 29 D, Punjab University Town ll, Khayban-e-Jinnah, Lahore Pakistan
- Send samples to the laboratory using commercial courier like TCS or Leopards. Put samples in a cooler that will maintain temperature at 6 °C without freezing the samples. Make sure to use overnight service.