Best calibration weights according to redditors
We found 24 Reddit comments discussing the best calibration weights. We ranked the 9 resulting products by number of redditors who mentioned them. Here are the top 20.
We found 24 Reddit comments discussing the best calibration weights. We ranked the 9 resulting products by number of redditors who mentioned them. Here are the top 20.
Looks like a balance weight set, except not sure what the jar with the powder would be.
Obecome 6Pcs 5g 10g 2x20g 50g 100g Grams Precision Steel Calibration Weight Kit Set with Tweezers for Balance Scale https://www.amazon.com/dp/B01E76H4QU/ref=cm_sw_r_cp_apa_i_y-d0DbT0ZNY3X
The other problem with my answer is the markings. Not sure what SCH would be, what's the other one marked as? Looks different.
This. It’s pretty easy to make a 10% error in measuring volume which is why we trust our scales more.
Really want to know? Get a calibration weight set.
https://www.amazon.com/HFS-Scale-Balance-Calibration-Weight/dp/B01EIHQP1I
Homebrew Materials:
Vacuum Pump Oil
Vacuum Tubing
1/4" Barb x 1/4" NPT Male Hose Fitting
1/4" Male x 1/4" Female NPT Extension Hose
Vacuum Pump
Filters
Spatulas
Magnetic Stir Bar
Digital Hotplate with Magnetic Stirrer
Nitrile Gloves (Better than Latex)
Empty Capsules (Buy Separated unless you hate your life)
Capsule Machine (If you value your sanity, buy more than a 100... I hated my life doing this)
Mohr Pipets
Pipette 10ml
Mortar and Pestle (If you're doing orals, get this... Otherwise, you're playing Russian Roulette with your doses and liver)
Funnel (For pouring into small places)
Alconox (For clean your shit)
Temperature Gun (How hot is my shit?)
Graduated Cylinder (If you measure with beakers, you're a fucking idiot... And you should consider Volumetric Flasks)
Beaker Set
1 Liter Beaker (Because brewing en'masse is better)
Scale (I have a 2kg one, too)
Calibration Weight Set
Calibration Weight 100g (Because you need two for the scale linked)
Vacuum Regulator (Unless you want to filter 9001 times due to broken shit)
Oil (Any USP grade, filtered or unfitlered)
BB
BA
Butyl Stoppers
Flip Top Seals
Crimper
Vials (Unsealed)
Autoclave (Cheaper than an oven, why are you using an oven?!)
Weight Boats (Buy a million of these. They're cheap and useful)
Did I miss something? Probably. Yes.
Be sure to get a set of calibration weights at 1/2/5/10/20 etc. grams. Cheap scales are cheap -- and the readings sometimes drift with temperature and battery voltage. A set of weights will keep your scale honest.
https://www.amazon.com/Hestya-Calibration-Digital-Balance-Tweezer/dp/B078Q3JZY7
You don't need to go hog wild on the quality of the calibration weights - a cheap set will do the job for what you're measuring.
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Side story -- I used to work at a company that had a chemistry lab that analyzed metal purity, assay of acid solutions, etc. Their calibration weight set was made out of 24K solid gold so the weights wouldn't oxidize over time, and could be acid washed from time to time to eliminate surface contamination. They were 100 miligrams, 1 gram, 2 gram ... up to 25 grams. The "whole set" weighed about 1 troy ounce and was made sometimes in the 1950s. They looked brand new in 1990 when I was there. The scale they used to weigh things was accurate to 0.00001g (0.01 milligrams) !
I have this scale, works great.
Scale. http://www.amazon.com/American-Weigh-0-01g-Digital-Scale/dp/B0012LOQUQ/ref=sr_1_2?ie=UTF8&qid=1451967354&sr=8-2&keywords=digital+scale+.001
Invest in one of these when you purchase your scale.
http://www.amazon.com/American-Weigh-Scales-100WGT-Calibration/dp/B002SVUBYE/ref=pd_sim_79_3?ie=UTF8&dpID=71XQ-JQBcKL&dpSrc=sims&preST=_AC_UL160_SR114%2C160_&refRID=0HV20GZ384XMBZV68JKM
https://www.amazon.com/dp/B002SVUBYE/ref=dp_cerb_1 might be helpful
Hold on just a moment there....
You are blatantly accusing them of false advertisement. In other words you are accusing them of doing something illegal. You aren't even sure if your scale is accurate according to your other posts. Shouldn't you be 100% accurate with your facts before rushing to a public declaration that they are criminals? The burden of proof is on the accuser in any civilized society.
Scale calibration weights are cheap. This one is 100 grams and is $4.16 on Amazon.
My point is that the fault may be on the:
If you are wrong... wouldn't you now be guilty of libel?
Can confirm re: calibration weights.
That particular one doesn't come with a calibration weight, unfortunately. But -- I've tried more than one scale and I got really tired of the calibration hassle, so with the $10 or so I saved on that scale from another I was looking at, I bought a simple set of calibration weights -- and have ended up using them far more frequently than I thought I might.
But for those who don't have a calibration weight, to me it's bonus that the scale actually arrived perfectly calibrated.
I also have a AWS Gemini 20 milligram scale -- great if you're looking for milligrams and very precise -- but far too difficult to use regularly for kratom, IMO, not least because the scale can't use a regular cup, even a plastic condiment cup.
But even if I'd had to pay the convenience store price you mentioned, which was double what I did pay, I couldn't be happier with the scale I bought. As I told my partner at the time, it's the scale that all the others wish they were. :D
I have these:
http://www.amazon.co.uk/gp/product/B00EPO9M2Y?psc=1&redirect=true&ref_=oh_aui_detailpage_o04_s00
And I also have this:
http://www.amazon.co.uk/gp/product/B00FM7VHUI?psc=1&redirect=true&ref_=oh_aui_detailpage_o04_s01
I've tested item 1 with item 2 and they're consistently accurate to within 0.01g
Yes you need exactly 500g to calibrate it and yes you fucked it up.
American Weigh Scales 500WGT 500g Calibration Weight Use for Scales https://www.amazon.com/dp/B00SSK3YNO/ref=cm_sw_r_cp_api_zECJzb6CNJ3CZ
Are you calibrating the scale with 10grams? Then weighing something at 25mg? http://www.amazon.com/Calibration-Kit-Tweezers-Weights-10mg/dp/B0010TEPLA/ref=pd_sbs_k_3
is what you need to make sure it really is accurate...
Here you go
spend $10 and get a scale
https://www.amazon.com/American-Weigh-AWS-100-Digital-Resolution/dp/B0012LOQUQ/ref=sr_1_1_sspa?s=kitchen&ie=UTF8&qid=1517584965&sr=1-1-spons&keywords=aws+scale&psc=1&smid=A3DV91KOL4GJSD
also recommend getting the calibration weight
https://www.amazon.com/American-Weigh-Scales-Calibration-Weight/dp/B002SVUBYE/ref=pd_bxgy_79_2?_encoding=UTF8&pd_rd_i=B002SVUBYE&pd_rd_r=0TEQW4Z8WMGM258YEPNP&pd_rd_w=JxFfI&pd_rd_wg=S7PlN&psc=1&refRID=0TEQW4Z8WMGM258YEPNP
Most pocket scales I've had calibrate off of a weight like this.
I got one forever ago and it's been good to keep my scale accurate
They just need recalibrating very easy to do. I've got them exact scales mate and I had to buy a calibration weight to calibrate them before I could even use them. Worth doing though as you know they are bang on plus you can recalibrate whenever needed. This is the one I bought:
https://www.amazon.co.uk/Smart-weigh-chrome-carbon-steel/dp/B00FMYVRTC/ref=cm_cr_arp_d_pdt_img_top?ie=UTF8
The resolution of my scale is 0.01gr. I would assume the instrument could have an inherent error (As all instruments)
Amazon sells calibration kits:
https://www.amazon.co.uk/Smart-Weigh-Calibration-Different-Milligram/dp/B00FM7VHUI/ref=sr_1_fkmr1_2?ie=UTF8&qid=1503180399&sr=8-2-fkmr1&keywords=1gr+calibration+weight.
I could question my reference, its legal, that said, the more measurements we have with similar instruments and cards could strengthen the results presented in this thread.
NONONONONO!!! No dollar bills. The weight can be different depending on the age of the bill, the humidity in the room, and how long it's been in your hand or pocket. I advocate these because they're inexpensive, and accurate. Use nickles at the very least, but never paper money.