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Effects of Poor Sampling or handling on Analysis Results

Sampling must have to be taken into account significantly to produce reliable results. No matter how modern techniques we are following in analysis or even if we are using the latest test equipment, all goes wasted if sampling is compromised.

Here is a small light thrown over aspects and results a poor sampling or sample handling can yield.

  • Poor sampling can lead to non-representative oil samples, giving results that do not reflect the actual condition of the oil.
  • Contamination during sampling can falsely increase parameters such as moisture, particles, metals, or acidity.
  • Improper sampling location may miss localized contamination or degradation.
  • Insufficient sample mixing can cause separation of contaminants and produce inconsistent results.
  • Exposure to air or moisture during sampling can alter oxidation, moisture, and other chemical test results.
  • Dirty or unsuitable sampling containers can introduce external contaminants and affect laboratory analysis.
  • Incorrect sample quantity may be insufficient for all required tests or affect test accuracy.
  • Improper storage or delayed testing can change the oil’s properties before analysis.
  • Incorrect labeling or identification can result in analysis being performed on the wrong sample or incorrect interpretation of results.
  • Overall effect: Bad sampling can produce false, misleading, or unreliable analytical results, leading to incorrect conclusions about oil quality and equipment condition.

We at AccreditedTestLabs.com, always ensure proper sampling and sample handling as per SOPs prescribed by national and International standards. Learn more about our sampling services, types, capability, and worldwide coverage here : – Professional Sampling Services

Sampling Services for oil, gas, food, water, material.

Rigs Lube Oil Sampling and Testing in Bahrain

Enquiry:

We are interested in obtaining a quotation for the following:  

80 bottles for lubes lab testing and collect samples at rig.

Kindly provide your best price, delivery timeline, and any other relevant terms. Please send your response within two days.


One of our highly proficient and ISO certified laboratory would be taking over this job.

Should you have any similar requisites, do drop us email and we shall revert instantly -> [email protected].

VGP 2013 Ballast Water Testing in Veracruz, Mexico

Enquiry:

We kindly request your confirmation of availability to provide ballast water sampling and laboratory analysis services in full compliance with US EPA VGP 2013 requirements at Veracruz, Mexico.

Vessel ETA: 16 February
(The confirmed port schedule will be shared once finalized.)

We would appreciate your advice on the following:

• Confirmation of service availability at Veracruz port
• Mobilization lead time within the specified ETA window
• Detailed list of VGP 2013 parameters covered in your testing scope
• Sampling methodology, sample handling procedure, and chain of custody protocol
• Estimated reporting timeline (indicative and final results)
• Commercial quotation covering attendance, sampling, laboratory analysis, and reporting

Should you require further operational details, we will be pleased to provide vessel particulars, ballast tank configuration, BWTS details, and intended sampling scope.

We look forward to your prompt response and appreciate your support.


One of our highly proficient and ISO certified laboratory would be taking over this job.

Should you have any similar requisites, do drop us email and we shall revert instantly -> [email protected].

Waste Water Samples Testing in Bahrain

Enquiry:

We are currently preparing an international project in Bahrain and are looking for an accredited laboratory that can perform comprehensive analysis of wastewater samples.

Specifically, we would like to request:

1. *Bacteriological analysis* (total coliforms, E. coli, and other relevant parameters).
2. *Heavy metals analysis* 
3. *Moisture content determination* of wastewater samples.

The detailed methods of calculation and testing procedures will be attached to this request for your reference.

Could you please confirm the following:

* Whether your laboratory can perform these analyses.
* The methods and standards you use for each test (e.g., APHA, ASTM, ISO).
* The typical turnaround time for such analyses.
* The cost quotation for a standard wastewater sample set.

We would appreciate receiving your response at your earliest convenience. If possible, kindly provide the contact details (email/WhatsApp) of the responsible person with whom we can coordinate directly


One of our highly proficient and ISO certified laboratory would be taking over this job.

Should you have any similar requisites, do drop us email and we shall revert instantly -> [email protected].

Water Sampling, Testing for Zirku Island, UAE

Enquiry:

We having requirement for water sampling of produced water in zirku island. List of testing & number of sampling is attached in ADNOC SOW.

Kindly provide best price for sample collection, testing & reports.


One of our highly proficient and ISO certified laboratory would be taking over this job.

Should you have any similar requisites, do drop us email and we shall revert instantly -> [email protected].

Hydrotest of Wastewater in Duba Tabuk, KSA

Enquiry:

WIth reference to the Executive regulation for the protection of aqueous media from pollution, appendix 3, we would appreciate it, if you could submit to us a quotation for wastewater sampling analysis tor review and consideration. We are contractor at NEOM green hydrogen project. The project is in Duba, Tabuk region of KSA.


One of our highly proficient and ISO certified laboratory would be taking over this job.

Should you have any similar requisites, do drop us email and we shall revert instantly -> [email protected].

Gas Sampling and Testing Saudi Aramco Plant, KSA

Enquiry:

Kindly We are looking your best competitive quote to provide us the services for gas sampling at Gas plant. We are looking three (3) Quotes from your end.

1ST QUOTE

The Gas sampling to be taken at the downstream of 7 Nos. .

The require gas sampling to be analyzed and quantified the followings:

  1. Components analysis.
  2. Water content.
  3. Chloride values.
  4. PH values.
  5. Alkalinity ( inc total p, m carbonate, Bicarbonate, Hydroxide).
  6. Dissolved Oxygen values.

Total 7 samples

2nd QUOTE

separate Quotation of sampling in we need to Quantify and Only water content in the Gas outlet stream.

Means Total 7 samples at the downstream of Slug catchers.

3RD QUOTE

Lab analysis quote for Sour Water Streams from Seven Slug Catchers

also required to analyze the following:  

  1. Components analysis
  2. Water   
  3. Chloride
  4. PH
  5. Alkalinity ( in total p, m carbonate, Bicarbonate, Hydroxide)
  6. Dissolved Oxygen,

Means Total 7 samples from Sour water streams at the downstream of slug catchers.   


One of our highly proficient and ISO certified laboratory would be taking over this job.

Should you have any similar requisites, do drop us email and we shall revert instantly -> [email protected].