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M3 Iron test load Weights, full selection against white background
Hexagonal M1 Iron Calibration Weight
M1 Iron Weights on white background

M3 Cast Iron Test Load Weights

Our Price: £16.00 – £134.00 + VAT (£19.20 - £160.80 inc VAT)

In stock for immediate dispatch!

For Standard Traceable options only 1 certificate is required per order of weights regardless of quantity.

For the UKAS option 1 certificate is required per weight ordered.

Note: Weights above 25kg cannot be UKAS certified.

Standard Traceable Calibration Certificate - 1 certificate needed regardless of amount of weights ordered

Price: £27

Standard Traceable Calibration Certificate + Numbering - 1 certificate needed regardless of amount of weights ordered (Test Weight cert)

Price: £43

UKAS M3 Calibration Certification - 1 certificate required per weight ordered

Price: £70

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Description

Cast Iron M3 Test Load Calibration / Testing Weights

All the M3 Cast Iron Test Load Weights are cast to a high standard, shot blasted, ground and finished with a black paint finish.

Ideal for use for low/mid accuracy applications.

The tolerances and dimensions for each M3 Cast Iron Test Load Weights are listed when a weight is selected on the drop down menu.

If just a tolerance certificate is required the Standard Traceable Calibration Certificate may suffice.

The M3 Cast Iron Test Load Weights can be identified by selecting the Standard Traceable Calibration Certificate + Numbering certificate option which will pass BRC and SALSA audit standards. You only need to order 1 certificate.

IF UKAS/ISO17025 certification is required you can also select this option, would need to order 1 UKAS certificate per weight.

Testing Guidelines:

Proof loading – Testing objects to see how much weight they can take. A typical application for this is testing lifts at the capacity they are rated for.

Testing / Calibration of weighing machines – The M3 Calibration / Testing Weights can be used for testing coarse weighing machines. A typical application for this would be testing floor scales and agricultural hoppers and weighing systems.

Calibration weights up to 2 kg are the hexagonal shape
Calibration weights of 5 kg and above are bar weights with handle

 

Size Guide:

(+/-1mm)

flat side to flat side (top) cm flat side to flat side (bottom) cm point to point (top) cm point to point (bottom) cm height cm
100g iron hex 3.0 3.5 3.5 3.9 1.6
200g iron hex 3.8 4.1 4.3 4.7 2.0
500g iron hex 5.3 5.7 6.1 6.5 2.7
1 kg iron hex 6.6 7.2 7.6 8.3 3.5
2 kg iron hex 8.6 9.3 9.8 10.5 4.2
Length Width Height
5 kg iron bar 15.0 7.5 8.4
10 kg iron bar 19.2 9.6 10.9
20 kg iron bar 23 – 23.4 10.2 – 11.4 14.0
25 kg iron bar 23.0 12.5 17.0

 

MPN:

M3IRON100 – 100g M1 Iron Weight

M3IRON200 – 200g M1 Iron Wight

M3IRON500 – 500g M1 Iron Weight

M3IRON1K – 1kg M1 Iron Weight

M3IRON2K – 2kg M1 Iron Weight

M3IRON5K – 5kg M1 Iron Weight

M3IRON10K – 10kg M1 Iron Weight

M3IRON20K – 20kg M1 Iron Weight

M3IRON25K – 25kg M1 Iron Weight

 

 

We endeavour to deliver your goods to you as fast as we can. A large percentage of our orders are delivered in 3 - 5 working days (all mainland UK postcodes except IV, AB and KW) but some goods can take longer if they are delivered direct from the manufacturer or if the item is made to order. Please note, IV, AB and KW postcodes and non-mainland UK including Northern Ireland can take longer. Please give us a call if your order is urgent to verify the delivery time or see if a faster delivery is possible (additional costs may apply for larger orders).

The following delivery charges may apply per order:
  • £12.00 + VAT – Mainland UK
  • £30.00 + VAT – UK non-mainland

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Frequently Asked Questions

Please see below for answers to frequently asked questions.

A calibration certificate proves the accuracy of your weighing equipment. It is very likely that if accuracy matters in your workplace, certification will be required by your industry regulators. They are straightforward to get hold of though. Just ask our team.

If you are trading or transacting anything by weight, you will probably need to demonstrate your weighing equipment is verified for trade use. This gives your customers confidence in your business and will make sure buying and selling run smoothly. We can help get you with relevant approvals for your equipment.

The answer will vary depending on how your equipment is used. As a minimum, we typically recommend once a year but our team can provide advice based on your individual circumstances.

The International Organization of Legal Metrology (OIML) has established standards for the classification of calibration test weights. Varying from E0 & E1, which are the most accurate to M2 which are commonly used for calibrating platform scales, floor scales and other industrial weighing instruments.

As a rough guide we have listed desired accuracy against class below.

+/- 0.1% – UNclassed Proof Load Test Weights
+/- 0.05% – M3 (Check/calibrate coarse scales)
+/- 0.005% – M1 (Check/calibrate standard scales)
+/- 0.0015% – F2 (Check/calibrate portable balances)
+/- 0.0005% – F1 (Check/calibrate precision balances)
+/- 0.00015% – E2 (Check/calibrate analytical balances)

The choice of weight class depends on the intended use and the level of accuracy required for a particular application. If you’re unsure, talk to our team who can advise you on the right class for your equipment.

If you’re sending a scale back to us for recalibration, it is ideal to use the original packaging. If this is not available choose a sturdy well-padded box to avoid shocks. Where possible, protect the load sensor by removing the weighing pan and any under-pan support and pack these separately in the box. You may be able to use the equipment’s locking pins or screws too.

Do ensure all the paperwork, including your contact details, is included to ensure we can return it once calibration is complete.

Need help? Speak to one of our experts Contact Us

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