Instructions on sampling and sample shipment

as well as important safety instructions

The following instructions for sampling and sample shipment as well as the safety instructions contain important information to be observed in the course of the fuel check. Working on, maintaining, repairing, or operating a back-up power system is a very responsible task. This emergency power system must function safely in an emergency situation. As conscientious as the system must be looked after by regular maintenance, oil changes and test runs, the sampling described below must also be carried out.

The fuel in emergency power systems is sometimes stored for years, but fuels also age. The fuel sample you draw will be analysed by Tec4Fuels and evaluated for quality.


For sampling, we have sent you a service kit with the following contents. Please first check that the service kit is complete:

  • 1 shipping box plus hazardous material label
  • 1 sample accompanying sheet and 1 sticker with tank code per tank and canister
  • 1 plastic canister (2 liters) with safety lid per tank
  • 1 sampling hose with hand pump per tank
  • 1 pair of protective gloves
  • 1 cleaning cloth
  • 3 sealable plastic bags

Please check in advance whether the labeling of the stickers correspond to the tank codes on the accompanying sheet for the sample according to the data entry form.

If you have any questions, problems or incomplete service kit, please feel free to call us:

Tel. +49 2407 55830-00

Ein Karton, zwei Schläuche, zwei Kanister und Einmalhandschuhe.

WARNING: Use this service kit only for sampling light heating oil or diesel fuel!


Proceed as follows according to these sampling instructions:

Person reads instructions for sampling.

1. Carefully read these instructions and the following safety instructions.

Person opens fuel cap.

2. Open the tank at a suitable point (e.g., filler neck or inspection port)

Person puts labels on canister and tank.

3. Stick the labels onto the respective canister and the associated tank. Place the opened canister in a stable position near the removal opening.

Person inserts hose end into tank.

4. Use protective gloves and insert the long end of the hose into the tank so that the sample is taken from the middle to lower area if possible.

Person uses a new unused hand pump for each tank.

5. Please use a new and unused one of the hand pumps supplied for each tank, otherwise the result will be falsified. First, the pump and hose must be flushed. To do this, simply pump the fuel back into the tank with at least 20 “strokes”.

Person pumps fuel into canister up to max. mark.

6. Only then pump the fuel into the canister with the hand pump up to the “max.” mark.

Person pulls hose out of tank.

7. When the canister is filled, hold the short hose end back into the extraction opening and slowly pull the long hose end out of the tank through the cleaning cloth. While doing this, empty the pump and hose by pumping the fuel back into the tank until nothing is pumped. Any last residual amounts in the hose can be allowed to flow back into the tank. Wait until the hose has run empty.

Person closes the canister.

8. Carefully close the canister until the locking ring is engaged and the canister is tight. Wipe any adhering drips from the canister.

Person closes tank opening.

9. Close the extraction opening on the tank.


Be sure to fill out the tank system survey as a sample.

Please check that the labelling on the canister also matches the respective tank code.

Please send the completed tank system overview via email to


Proceed as follows when shipping fuel samples:

Two canisters, each packed in a zip bag.

1. Pack the filled canisters with the appropriate labels in a zip bag each, seal it carefully and place it in the return box. Please make sure that the canister is placed upright in the direction of the arrow in the carton.

A cardboard box containing two canisters.

2. Place the canister(s) in the return carton. Please make sure that the canister is placed upright in the direction of the arrow in the carton.

Two hands in a box, pressing a cardboard lid tightly.

3. Place the enclosed die-cut cardboard box over the two canisters and press lightly so that the canisters are covered for a snug fit.

Ein Karton und eine Hand, die einen Klebestreifen vom Kartondeckel abzieht.

4. There is an adhesive strip on the inside of the carton lid that you can use to seal the carton.

Ein Karton und zwei Hände.

5. Then carefully close the box with the adhesive tape.

A zip bag containing disposable gloves and hand pump and hose.

6. Place the pumps, hoses and cleaning rag in the sealable plastic bag and dispose of this via hazardous waste recycling.

The shipment is made by picking up the package by GO! Express & Logistics. The shipment goes to the analysis laboratory GMA in Frankfurt, not to TEC4FUELS. When the return box is ready for shipment, inform us at: Please specify the pickup address as well as pickup date and time window. We will arrange the collection for you.

Safety instructions for sampling fuels from emergency power systems

Please be sure to observe the following safety instructions in accordance with the sampling instructions.

  1. Use your personal protective equipment

Please wear suitable protective clothing when working. Suitable are safety shoes or boots, safety goggles with side protection in case of splashes and gloves protecting against aromatic hydrocarbons.

  1. Technical protective measures

Do not use a cell phone during sampling. Keep the sample away from ignition sources (open flames and sparks) and heat sources (hot pipes or surfaces).


  1. During sampling

Do not eat, drink, or smoke while collecting samples. Avoid contact with skin, eyes, and clothing. Do not put fuel-soaked rags in pockets of work clothing. Wash hands before and immediately after handling fuel. Wash off fuel on skin with soap and water. Remove contaminated clothing and shoes. Gloves must be inspected regularly and replaced if worn, punctured or contaminated.


Provide adequate ventilation. When working in enclosed spaces (tanks, containers, etc.), make sure beforehand that there is an atmosphere suitable for breathing. Vapours may form explosive mixtures with air. Do not smoke! Avoid inhalation of vapours or mist. Avoid contact of the fuel with skin, eyes, and clothing.


Avoid formation of vapor, mist, or aerosol. Do not use compressed air for filling, emptying, or handling.

  1. If something does happen

Eye contact:

May cause mild irritation. Flush eyes thoroughly with plenty of water, including under eyelids. Check if contact lenses are worn and remove if necessary. Then rinse the eyes. Consult a medical specialist if eye irritation persists.

Skin contact:

Heating oil and diesel may cause skin irritation and/or dermatitis. Wash skin with soap and water. Seek medical attention if skin irritation persists.

Ingestion of fuel oil or diesel:

DO NOT induce vomiting because the risk of aspiration is very high. Fuel may enter lungs and cause damage. Do not give anything to drink. Take affected person to hospital immediately. Do not wait until symptoms appear, they can be fatal. Call the emergency doctor immediately!