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HACH ULR

HACH is a brand of water analysis instruments and reagents used in municipal drinking water, wastewater, industrial process water, and environmental monitoring. The ULR designation refers to ultra-low-range chemistries and kits designed to quantify trace analytes at microgram-per-litre (parts-per-billion) concentrations. The HACH ULR line includes fluorescence-based test kits for free chlorine, total chlorine, and sulfite, with working ranges such as 2 to 100 µg/L Cl₂ for free chlorine, 3 to 100 µg/L Cl₂ for total chlorine, and 6 to 500 µg/L SO₃ for sulfite. These kits are supplied with reagents and accessories such as vial stands, and are configured for 100 tests per kit. The fluorescence method is used where conventional colorimetric or amperometric measurements lack the sensitivity needed to resolve low-level changes in oxidant or oxygen-scavenger residuals. Typical applications include monitoring chlorine residuals in drinking water distribution and treatment, tracking sulfite in boiler water and closed-loop systems, and verifying dechlorination performance. 3G Electric supplies HACH ULR water quality test kits as part of its industrial equipment catalog. Available SKUs include 908RF1 (free chlorine, 2 to 100 µg/L Cl₂, 100 tests, includes two bottles of Free Chlorine Reagent), 908RF0 (sulfite, 6 to 500 µg/L SO₃, 100 tests, includes vial stand), and 908RF2 (total chlorine, 3 to 100 µg/L Cl₂, 100 tests, includes vial stand). Each listing carries the manufacturer part number, test parameter, range, test count, and included components so that buyers can match the kit to the required analyte and detection limit. 3G Electric supports the line with datasheet access, SKU-level specification data, and global logistics coordination. Orders can be placed for single kits or multiple SKUs, and the catalog is structured to let plant engineers, maintenance managers, and procurement specialists verify range, reagent configuration, and test count before purchase. For facilities that need to document trace-level chlorine or sulfite concentrations, the HACH ULR kits provide a defined measurement range and a fixed number of tests per kit, which supports consumable planning and method consistency across sites.

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About HACH ULR

HACH is a brand of water analysis instruments and reagents used in municipal drinking water, wastewater, industrial process water, and environmental monitoring. The ULR designation refers to ultra-low-range chemistries and kits designed to quantify trace analytes at microgram-per-litre (parts-per-billion) concentrations. The HACH ULR line includes fluorescence-based test kits for free chlorine, total chlorine, and sulfite, with working ranges such as 2 to 100 µg/L Cl₂ for free chlorine, 3 to 100 µg/L Cl₂ for total chlorine, and 6 to 500 µg/L SO₃ for sulfite. These kits are supplied with reagents and accessories such as vial stands, and are configured for 100 tests per kit. The fluorescence method is used where conventional colorimetric or amperometric measurements lack the sensitivity needed to resolve low-level changes in oxidant or oxygen-scavenger residuals. Typical applications include monitoring chlorine residuals in drinking water distribution and treatment, tracking sulfite in boiler water and closed-loop systems, and verifying dechlorination performance. 3G Electric supplies HACH ULR water quality test kits as part of its industrial equipment catalog. Available SKUs include 908RF1 (free chlorine, 2 to 100 µg/L Cl₂, 100 tests, includes two bottles of Free Chlorine Reagent), 908RF0 (sulfite, 6 to 500 µg/L SO₃, 100 tests, includes vial stand), and 908RF2 (total chlorine, 3 to 100 µg/L Cl₂, 100 tests, includes vial stand). Each listing carries the manufacturer part number, test parameter, range, test count, and included components so that buyers can match the kit to the required analyte and detection limit. 3G Electric supports the line with datasheet access, SKU-level specification data, and global logistics coordination. Orders can be placed for single kits or multiple SKUs, and the catalog is structured to let plant engineers, maintenance managers, and procurement specialists verify range, reagent configuration, and test count before purchase. For facilities that need to document trace-level chlorine or sulfite concentrations, the HACH ULR kits provide a defined measurement range and a fixed number of tests per kit, which supports consumable planning and method consistency across sites.

Common Applications

  • Drinking water treatment — HACH ULR Free Chlorine Fluorescence Test Kit (SKU 908RF1) for trace free chlorine residual monitoring at 2 to 100 µg/L Cl₂.
  • Drinking water distribution — HACH ULR Total Chlorine Fluorescence Test Kit (SKU 908RF2) for total chlorine measurement at 3 to 100 µg/L Cl₂ where combined chlorine is present.
  • Boiler water systems — HACH ULR Sulfite Fluorescence Test Kit (SKU 908RF0) for sulfite residual monitoring at 6 to 500 µg/L SO₃ as an oxygen scavenger.
  • Industrial process water — HACH ULR free chlorine and total chlorine kits for low-level oxidant residual checks in cooling and process streams.
  • Wastewater dechlorination — HACH ULR Total Chlorine Fluorescence Test Kit (SKU 908RF2) for verifying low total chlorine residuals after dechlorination.
  • Environmental and surface water monitoring — HACH ULR fluorescence test kits for trace chlorine and sulfite measurement in grab samples.

Frequently asked questions

Common questions about HACH ULR from 3G Electric.

What is the measurement range of the HACH ULR Free Chlorine Fluorescence Test Kit (SKU 908RF1)?

The HACH ULR Free Chlorine Fluorescence Test Kit, SKU 908RF1, measures free chlorine in the range of 2 to 100 µg/L (ppb) Cl₂. Each kit provides 100 tests and includes two bottles of Free Chlorine Reagent. The ultra-low-range fluorescence method is intended for samples where free chlorine residual must be resolved at parts-per-billion concentrations, such as in drinking water treatment and distribution monitoring. The kit is supplied with the reagents needed to perform the stated number of tests, and the range should be confirmed against the expected sample concentration before use.

What does the HACH ULR Sulfite Fluorescence Test Kit (SKU 908RF0) include, and what range does it cover?

The HACH ULR Sulfite Fluorescence Test Kit, SKU 908RF0, covers a sulfite range of 6 to 500 µg/L (ppb) SO₃ and provides 100 tests per kit. It includes a vial stand as part of the supplied components. The kit is used for monitoring sulfite in water, including boiler water and other systems where sulfite is dosed as an oxygen scavenger. The 6 to 500 µg/L range allows measurement of low residual sulfite concentrations. Buyers should verify that the sample matrix and expected sulfite level fall within this range before ordering.

How does the HACH ULR Total Chlorine Fluorescence Test Kit (SKU 908RF2) differ from the free chlorine kit?

The HACH ULR Total Chlorine Fluorescence Test Kit, SKU 908RF2, measures total chlorine in the range of 3 to 100 µg/L (ppb) Cl₂, while the free chlorine kit (SKU 908RF1) measures free chlorine in the range of 2 to 100 µg/L (ppb) Cl₂. Both kits provide 100 tests and include a vial stand or reagents as specified. Total chlorine represents the sum of free and combined chlorine, so the total chlorine kit is used where chloramine or other combined chlorine species are present or where total residual is the parameter of interest. The two kits are separate SKUs with different manufacturer part numbers.

What is the test count and reagent configuration for HACH ULR water quality test kits supplied by 3G Electric?

The HACH ULR water quality test kits listed by 3G Electric are configured for 100 tests per kit. For example, SKU 908RF1 includes two bottles of Free Chlorine Reagent for 100 tests, while SKU 908RF0 and SKU 908RF2 include a vial stand. The number of pieces per kit is five for the SKUs shown. Reagent and accessory contents vary by parameter, so the included components should be checked against the specific SKU. Test count and reagent configuration are stated in the catalog listing to support consumable planning and reorder scheduling.

Which HACH ULR test kit should be used for boiler water sulfite monitoring?

For boiler water sulfite monitoring, the relevant HACH ULR kit is SKU 908RF0, which measures sulfite in the range of 6 to 500 µg/L (ppb) SO₃. It provides 100 tests and includes a vial stand. Sulfite is commonly dosed in boiler water systems as an oxygen scavenger, and low-level residual monitoring helps confirm that the target concentration is maintained. The 6 to 500 µg/L range is suited to trace-level measurement. The kit is a consumable item, so the 100-test count can be used to estimate replacement intervals based on sampling frequency.

Can 3G Electric supply HACH ULR test kits with datasheets and part numbers for procurement?

Yes. 3G Electric lists HACH ULR water quality test kits with manufacturer part numbers, test parameters, ranges, test counts, and included components. For example, SKU 908RF1 corresponds to MPN 34251000, SKU 908RF0 to MPN 34250000, and SKU 908RF2 to MPN 34252000. Datasheet access and SKU-level specification data are available to support procurement review. Orders can be placed for individual kits or multiple SKUs, and logistics coordination is handled for global delivery. Buyers should confirm the required analyte, range, and test count against the listing before purchase.