One of the bottles has a pretty good scratch, not what you need with a colorimeter, I'll just swap it out for a new bottle. When I tested my HI736 tester with this 100ppb certified standard, I got 80/82/80ppb in three tests. I was expecting something closer to 100ppb. 20% variance is a lot!
Smart Solutions Emulsifying Vegetable Non Toxic
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Premium Grade DMSO Roll-On - Non-Diluted 99.995% Low Odor - 3 Oz. Bottle - BPA-Free Container
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Semi-synthetic engine oil IDEMITSU Zepro Euro Spec 5W-40, 4 l, 3.84 kg, 1 pc.
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π§ Certified Laboratory Deionized Water Demineralized: Ensuring Pure and High-Quality Results
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Graduated Erlenmeyer Glass Flask Set With Narrow Mouth - 500Ml Capacity
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2-Pack 32Oz All-Purpose Heavy Duty Plastic Spray Bottles - Leak Proof, Adjustable Nozzle For Cleaning, Planting & Pet Care - Green
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Valchoose LDPE Economy Wash Bottle, Narrow Mouth Squeeze Bottle Medical Lab Plastic, Safety Squeeze Bottle No Spill, Bend Mouth Watering Cans (500Ml / 16Oz / 1 Bottle)
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Get 24 Pack Of 4 Oz. Amber Boston Round Glass Bottles With Droppers From GBO GLASSBOTTLEOUTLET.COM
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