“Do your DPD Chlorine tabs work in Hach equipment?”

Good afternoon, Ronda, and thank you for this inquiry. When weighing the different DPD options (tablets, powders, reagentstrips, etc.) make sure you note the sample size that each test method will work in. As a general rule most devices that use DPD as a reagent will have 10 mL sample sizes, but we have also seen devices that use 15 mL sample sizes, 7 mL sample sizes and 20 mL sample sizes.

Check your machine’s manual to find out what sample size it takes. In order to remain compliant with whatever drinking water directives you follow you will need to match up the sample size w/ the correct reagent amount.

Specifically, though, you asked about the DPD tablets for chlorine testing that we have shown on our site and as far as we know all of the DPD products we have shown on our site work for 10 mL samples — except for the eXact Micro DPD products which work in smaller samples.

Two 10-mL Tablets/Strips/Powders for a 20-mL Sample?

While in theory that would work, definitely check your approved testing method to see if it expressly forbids that sort of thing and/or if it specifically calls for a brand or type of chlorine reagent delivery method. In the past we have seen where testing protocols have gotten so granular that they call out not only the type of DPD used, but also the brand of the test meter and DPD used for chlorine testing.

(100) DPD #1 Tablets (1,000) DPD #1 Tablets

(100) DPD #3 Tablets (1,000) DPD #3 Tablets

]]> http://watertestingblog.com/2011/11/10/do-the-dpd-tablets-work-in-hach-meters/feed/ 0 http://watertestingblog.com/2011/01/18/wanted-5000-dpd-1-tablets-for-chlorine-testing/ http://watertestingblog.com/2011/01/18/wanted-5000-dpd-1-tablets-for-chlorine-testing/#respond Tue, 18 Jan 2011 13:03:26 +0000 http://watertestingblog.com/?p=3595

1,000 DPD #1 Tablets

Recently we received a request for a quote on 5,000 DPD #1 Tablets for chlorine (or possibly another oxidizer) level testing. We’d like to remind remind everyone that although we link to a number of water quality products, Water Testing Blog does not stock or sell any products.

The party asking about DPD #1 Tablets sought to import them into a foreign country so we suggested they contact companies on the following page:

( http://www.alibaba.com/showroom/dpd-tablets.html )

… so they could attempt to save a few bucks (or whatever currency they use) on shipping.

Now having said that, when it comes to DPD #1 we believe anyone thinking about using DPD tablets should at least consider using DPD-1 ReagentStrips in their place. ReagentStrips dissolve faster and easier than tablets (especially in hard or cold water) and contain no filler materials that could interfere with photometric optics.

As far as performance, the manufacturer of DPD-1 ReagentStrips, Industrial Test Systems, Inc., had an independent laboratory conduct a blind water sampling study using DPD ReagentStrips, Tablets and Powder Pillows. In the end the ReagentStrips tested as good, and in some cases better, than other DPD reagent delivery methods.

I need to buy Dpd Tablets and I have not found a supplier nor a Manufacturer to buy from.

Kindly Link me with Dpd Tablets Manufacturers who can supply me.

We thank you very much, Janet, for your inquiry and suggest you take a look at the material below, as it will lead you to what you seek:

For those of you interested in learning more about DPD and its uses, please refer to an earlier posting entitled What id DPD?.

National Stock Number (NSN) for “Chlorine Test Tablet” — 6550012191061 and 6550014257957

click here for more details Part Number: A8800	DPD Test Tabs DPD Tabs #1 (100) “Test Tablets are more accurate and have a longer shelf life than liquid DPD. Premium-quality DPD tabs work in all DPD Test Kits including Taylor, LaMotte and others. Pool supplies from In The Swim.” Your Cost: $7.99
click here for more details Part Number: A8805	DPD Test Tabs DPD Tabs #1 (1000) “Test Tablets are more accurate and have a longer shelf life than liquid DPD. Premium-quality DPD tabs work in all DPD Test Kits including Taylor, LaMotte and others. Pool supplies from In The Swim.” Your Cost: $47.99
click here for more details Part Number: A8840	DPD Test Tabs DPD Tabs #3 (100) “Test Tablets are more accurate and have a longer shelf life than liquid DPD. Premium-quality DPD tabs work in all DPD Test Kits including Taylor, LaMotte and others. Pool supplies from In The Swim.” Your Cost: $7.99
click here for more details Part Number: A8845	DPD Test Tabs DPD Tabs #3 (1000) “Test Tablets are more accurate and have a longer shelf life than liquid DPD. Premium-quality DPD tabs work in all DPD Test Kits including Taylor, LaMotte and others. Pool supplies from In The Swim.” Your Cost: $47.99
click here for more details Part Number: A8580	DPD Powder DPD Power 10 g. DPD Powder for use with Taylor DPD test kits. Your Cost: $12.99

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