StableWeigh for TDS
NEW AND REVOLUTIONARY
Total Dissolved Solids (TDS) Vessels
Replacing Crucibles Around The World!
Refine your Total Dissolved Solids (TDS) analysis using Environmental Express StableWeigh™ vessels. Replace your current crucible or dish with our patented StableWeigh™ vessels. The vessels and related products work together to help you perform the TDS analysis more efficiently and more accurately.
StableWeigh™ reduces the amount of time you spend preparing, weighing, cooling, and cleaning your evaporation vessels. The disposable vessels are prepared and weighed for you, allowing you to start your analysis immediately without the cumbersome task of drying a crucible and obtaining the tare weight. StableWeigh™ vessels are inert to common water and waste water components and are heat resistant at the temperature required by the method. Because the mass of the vessel is an order of magnitude lower than a traditional glass or ceramic crucible the StableWeigh™ vessel does not hold as much heat energy and will cool to balance temperature much faster. Having the mass of the vessel closer to the mass of the weighed residue also gives greater precision and accuracy. This will help to reduce the number of drying and weighing cycles needed to obtain a constant weight. Once you are done with the analysis the vessel can be disposed of which eliminates the need for washing and the possibility of carryover from one sample to the next.
Click below for a webinar on the regulatory update for StableWeigh vessels:
StableWeigh Replacement Parts
|EE4061036||Replacement Hose Barbs for Filling Stations, 10pk|
Static Control Devices
|F160106-ML-1L||Total Dissolved Solids, Mid-Level, 1 L (2 x 500mL)|
|F95010||TDS standard, 10pk|
All of our pricing is available online by logging into your customer account with your customer ID. If you need help accessing or setting up your online account please call our customer service department at 800-343-5319. You can also contact your sales representative and they will be able to better discuss pricing with you.
We highly recommend that some form of static control is employed when using our StableWeigh vessels. We have several static control products available if you do not currently have a system in place.
This is made of plastic, metal, and electrical components. This does not contain any radioactive components.
The StableWeigh vessels can hold about 300 milliliters.
I notice the ASTM D5907 is the only method listed under method compliant. Are these also compliant with SM2540C? Thanks.
Currently, StableWeigh is only method compliant with the ASTM D5907 method. There is an update coming very soon to SM2540 which will specifically allow for our vessels to be used. The method update will actually mention StableWeigh by name.
Any type/model of steam bath can be used to evaporate the samples to dryness. The method allows for you to use an oven to evaporate the samples as well. We recommend the temperature to be set between 103-105 C. Our filling stations support the vessel during filtration. They should then be placed in our modular rack, TDS200R, throughout the rest of the test.
Dimensions of 5-place modular rack:\r\nLeft to Right - 14.25\" \r\nFront to Back - 12.75\"\r\nTall - 4\"\r\n
Although they may look like plastic bags, they are vessels made from a proprietary polymer blend.
We do offer samples of our StableWeigh vessels. The part number is TDS100S.
These vessels were designed to replace traditional crucibles. They come preconditioned and preweighed so they are ready to use right out of the box. Filter your sample through a 1.5 um washed and dried glass fiber filter into the vessel. Place the vessel into an oven/steam bath to evaporate to dryness. Bake in 180C oven for 1 hour. Cool in desiccator to balance temperature (about 15 mins). Weigh the vessel with the residue. Calculate your TDS value. Discard vessel.