# NSN 6550-01-425-7957: Chlorine Test Tablets

NSN 6550-01-425-7957 (also written 6550014257957; NIIN 01-425-7957) is a chlorine test tablets in Federal Supply Class 6550, In Vitro Diagnostic Substances, Reagents, Test Kits and Sets. 5 manufacturer part numbers from 3 suppliers are on record. It was last purchased in Oct 2026.

## Identification

- NSN: 6550-01-425-7957 (6550014257957)
- NIIN: 01-425-7957 (014257957)
- Item name: CHLORINE TEST TABLETS
- Federal Supply Class: [FSC 6550 In Vitro Diagnostic Substances, Reagents, Test Kits and Sets](https://nsnexplorer.com/fsc/6550/)
- Federal Supply Group: [FSG 65](https://nsnexplorer.com/group/65/)
- Acquisition method suffix code: AMSC Z: a commercial, nondevelopmental or off-the-shelf item. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ALCD | USAGE DESIGN | DIETHYL-P-PHENYLENE DIAMINE (DPD) NO. 1R TABLETS USED FOR DETERMINING OF CHLORINE PPM OF FLUIDS. |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | CHLORINE TEST TABLE IETHYL-P-PHENYLENE DIAMINE (DPD) NO 1R TAB |
| FEAT | SPECIAL FEATURES | UNIT QTY 100. |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 1224K35 | 59728 | ARTHUR H. THOMAS COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 22278642 | 22527 | FISHER SCIENTIFIC COMPANY L.L.C. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 6999-J | 34807 | LA MOTTE CHEMICAL PRODUCTS CO INC, THE DBA LA MOTTE COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 6999A-J | 34807 | LA MOTTE CHEMICAL PRODUCTS CO INC, THE DBA LA MOTTE COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 9864H20 | 59728 | ARTHUR H. THOMAS COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Price history

Newest first.

| Date | Unit price | Quantity | Supplier | Agency | Source |
| --- | --- | --- | --- | --- | --- |
| 2026-10-01 | $15.85 | 50 | ARS SALES & SERVICES LLC | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6550014257957) |
| 2026-09-17 | $17.22 | 1 | SZY HOLDINGS, LLC DBA SZY HOLDINGS LLC | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6550014257957) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-01 | [SPE2DS27V0056](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6550014257957) | CHLORINE TEST TABLETS | ARS SALES & SERVICES LLC | $792.50 |
| 2026-09-17 | [SPE2DS26P3150](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6550014257957) | CHLORINE TEST TABLETS | SZY HOLDINGS, LLC DBA SZY HOLDINGS LLC | $17.22 |
| 2026-09-16 | [SPE2DS26V9956](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6550014257957) | CHLORINE TEST TABLETS | SZY HOLDINGS, LLC DBA SZY HOLDINGS LLC | $19.95 |
| 2026-09-16 | [SPE2DS26P3122](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6550014257957) | CHLORINE TEST TABLE | SZY HOLDINGS, LLC DBA SZY HOLDINGS LLC | $100.14 |
| 2026-08-05 | [SPE2DS26V8475](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6550014257957) | CHLORINE TEST TABLETS | MIDLAND SCIENTIFIC INC | $17.25 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=6550014257957&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6550014257957
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- USAspending contract actions (each award above links to its record)
- All data is public U.S. government data; every row above links to its source record where one exists.

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