HFS(R) Calibration Weight Set 1000g with Case and Tweezers for Digital Scale, Gram Scale-M2 Class Precision 8pcs 10g,20g,20g,50g,100g,100g,200g,500g

⭐⭐⭐⭐⭐ The HFS(R) Calibration Weight Set is an exceptional tool for anyone needing precise weight measurements for calibration or testing. The 1000g weight is impressively accurate and comes in a well-designed case that keeps everything organized and protected. The weight itself is solid and robust, providing reliable performance for ensuring the accuracy of scales and other measurement instruments. The case is durable and compact, making it easy to store and transport the weights safely. For professionals and hobbyists alike, this set delivers the precision and quality needed for accurate calibrations. If you require dependable weights for your measurement tasks, the HFS(R) set is a top-notch choice. Highly recommended!

Please consider the price of this item as you read the following review. Using a Radwag 82/220R.2 Analytical Balance calibrated with an external 100 g ASTM Class 0 reference calibration weight (+/- 130 ug), I tested the weights of the items in this set. They registered as follows: 10g - 10.00159 g 20g #1 - 19.99577 g 20g #2 - 19.99664 g (top pin was slightly tilted due to being loose in the box) 50g - 49.99365 g 100g - 100.0078 g 100g - 100.0080 g 200g - 200.0068 g 500g - 500.00 g (This item was outside the measurement range of the scale and was compared on a calibrated centigram scale to be accurate to decimal places when compared to a 500g ASTM Class 1 reference weight). So, for the most part this is an ASTM Class 6 set with some weights having enough deviation to fall into ASTM Class 7 (IOLM Class M2). In other words, about as inaccurate of a calibration set as you can buy, at least with regard to ASTM calibration classes (7 is the worst). But, for the price it is a decent set for low accuracy (i.e., every day/mere mortal) scale calibration of scales that go down to centigrams.

All calibration weights are accurate within +/- 0.1 g tolerance

Very nice set of calibration weights. Well worth the money. Weight set comes in a sturdy plastic container, with a separate hole for each piece so they do not bump into each other. Also included is a 'removal tool' to take a weight out of its holder (I guess to avoid contaminating the weights with skin oil/dirt). This tool is a thoughtful addition, but it's made out of plastic, so I don't feel secure using it with the 2 heaviest weights.

In all honesty it's a really good bang for your buck for what I use them for the weights work perfectly. The tweezers that come with it or kind of useless they're just too chintzy and you can throw those in the trash. For the price I'm not sure exactly what someone is to expect, it's basically a standard case to hold the weights which to me is no big deal this item was a great buy and a great value for all the different weights that come with it. The scales that we use only go to the hundreds so anything smaller than that doesn't necessarily matter to us.

I used this set and another small set of masses (0.1g to 100g) to calibrate an old Mettler P1210 scale (0.010 gram accuracy). Due to the way the Mettler is built, it has great internal reference masses for multiples of 100g. Also, between both sets I had an impressive assortment of 10, 20, 50 and 100g masses which could be combined to make 100 gram units to compare against the internal reference masss. Short story is everything measured within the accuracy of the scale. Any combination of masses measured as expected with and well within the accuracy of the scale (0.01 grams). It would be nice to weigh the set on a known scale, but to the limits of my testing I found these masses very accurate.

very good

A very nice set of scale weights. I tested each piece on a very sensitive digital scale and the numbers were spot-on. The blue plastic case works well too. Great value.

商品は10g×1個、20g×2個、50g×1個、100g×2個、200g×1個、500g×1個と言う組み合わせで合計8個で1kgになる分銅セットです。 分銅の組み合わせ次第で10g分解能で使えるため必要最小限のセットと言った感じで商品全体の軽量化にも貢献していると言えます。 当方では最大200gと300gまで測定可能な0.001g精度の精密はかり2台で10g、20g、50g、100gを確認した限りでは、0.01gの桁でズレがある分銅もあったものの僅か0.1%未満の誤差のため計測器自身の表示誤差なのか分銅自身の精度なのか判断が付きにくいほどで、分銅の表示に対し「誤差なし」と言えるレベルの商品でした。 簡易ピンセットも付属しており商品自身は満足いくものだったけれど、青色のケースが今一歩で「落とさないようケースの裏側を持つと凸凹しており指が痛い」「500g分銅より10g分銅は小さなためケースを上下にしたり倒したりすると10gや20gの分銅がケース内で飛び出ている」と言った感じでした。 ケースやクッション材がもう少し工夫されてあるといいなと思いました。 いずれにしても分銅としてまったく問題なく使える商品のため総合評価は★5としました。

Great assortement of kit and weights. It's generally very accurate; the margin of error is never more than 0.02 or 0.01 for me.

He comprobado la precisión de las pesas y las 8 cumplen con la calibración M2 (adjunto tabla).

Buen juego para verificar básculas, excelente calidad

Los pesos son clavados. Los probé en la báscula que tiene 3 años y me oermite comprobar que funciona correctamente y no estafo a nadie.