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Document IDHWB-QMS-8.4
Version2.0.0
Statusâ—Ź APPROVED
Clause8.4.1 (General)
Document Control
Document Title Purchasing Process SOP
Document ID HWB-QMS-8.4
Version 2.0.0
Status APPROVED
Author George (Systems Architect)
Approved By Humberto Dominguez, CEO
Date 09/21/2026
ISO 9001 Clause 8.4.1 (General)

Standard Operating Procedure: Purchasing Process (ISO 8.4)

1.0 Purpose

To define the standardized procedure for the selection and evaluation of external providers, ensuring zero-defect inputs into the SigmaFidelity™ value chain.

2.0 Universal Mandates (2026 Baseline)

  1. Tier 6 Telemetry: Every supplier performance audit must be logged.
  2. Physical Truth: Use absolute paths for the digital PO repository.

3.0 Procurement Lifecycle

graph TD Start([Need Identification]) --> Select[Supplier Evaluation] Select --> PO[PO Creation] PO --> Verify[Receipt & Verification] Verify --> SDS[SDS Registry Update] SDS --> Audit[Annual Supplier Review] Audit --> End([Complete]) Verify -- Defect --> CAR[Initiate Corrective Action] CAR --> Select

4.0 Procedure

  1. Selection: Evaluate suppliers based on Accuracy, Compliance (SDS), and Cycle Time.
  2. Execution: Document all orders via formal PO specifying SigmaFidelity™ Grade.
  3. Verification: Upon delivery, the Purchasing Lead verifies the shipment for "Poka-Yoke" compliance (intact labels and valid expiration).

5.0 Verification (Zero-Defect Check)

  • Supplier On-Time Delivery (OTD) >98%.
  • Zero unverified chemicals found at client sites.

6.0 Revision History

Version Date Author Change Description
2.0.0 05/21/2026 George TOTAL MODERNIZATION. Consolidated flowchart and added 2026 mandates.
1.0 2026-02-21 Gemini Initial formalized procurement process.
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