The Ph Standard, cataloged under National Stock Number 6810-01-239-7562, is classified within Federal Supply Class 6810 (Chemicals) of the Chemicals and Chemical Products group. The manufacturer of record is Vwr International, Llc Dba Vwr Scientific. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6810-01-239-7562 |
| Primary Part Number | 34175-242 |
| Item Name | Ph Standard |
| FSC / FSG | 6810 / 68 — Chemicals |
| Manufacturer | Vwr International, Llc Dba Vwr Scientific |
| Status | ACTIVE |
| General Characteristics Item Description | BUFFER POWDER TO MAKE 7.0 PH IN 100 ML DISTILLED WATER; 10 CAPSULES PER VIAL; 5 VIALS PER BOX |
| Nondefinitive Spec/std Data | N CLASS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Hazardous per DLA record (HMIC Y) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 34175-242 PRIMARY | Vwr International, Llc Dba Vwr Scientific (USA) |
| HYDRION BUFFER PH 7.00 | Vwr International, Llc Dba Vwr Scientific (USA) |
| 4122F38 PRIMARY | Arthur H. Thomas Company (USA) |
| 21-2110-08 PRIMARY | Taylor Chemical Company Dba Taylor Chemical Co (USA) |
| Reference | Meaning |
|---|---|
| HYDRION BUFFER SALT PH 7.00 | 5/9 Secondary reference U.S. Government activity |
| 13-640-303E | 5/9 Secondary reference Fisher Scientific Company L.l.c. |
| DOD-R-23679 | 5/9 Secondary reference U.S. Government activity |
NSN 6810-01-239-7562 is a Ph Standard, manufactured by Vwr International, Llc Dba Vwr Scientific, classified under FSC 6810, Chemicals. Status: active.
NSN 6810-01-239-7562 has 4 manufacturer part numbers on file: 34175-242 (Vwr International, Llc Dba Vwr Scientific), HYDRION BUFFER PH 7.00 (Vwr International, Llc Dba Vwr Scientific), 4122F38 (Arthur H. Thomas Company), 21-2110-08 (Taylor Chemical Company Dba Taylor Chemical Co).
2 possible matches (shared part number, not a government interchangeability claim): 6810-01-239-7563, 6810-01-259-8231. Verify interchangeability with system specifications before substitution.
Key specifications for 34175-242: General Characteristics Item Description: BUFFER POWDER TO MAKE 7.0 PH IN 100 ML DISTILLED WATER; 10 CAPSULES PER VIAL; 5 VIALS PER BOX; Nondefinitive Spec/std Data: N CLASS; Part Name Assigned by Controlling Agency: PH STANDARD BUFFER PWDR TO MAKE 7.0PH IN 100ML DISTILLED WATER. 2 specifications are documented in the U.S. Government catalog.
Hazardous per DLA record (HMIC Y). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.