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Certainty Blog

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Quality Assurance vs. Quality Control

Summary: Quality Assurance (QA) and Quality Control (QC) are complementary but distinct disciplines within a quality management system — QA focuses on preventing defects through process design and standardization, while QC detects defects through testing and inspection of finished outputs. Together, they form a comprehensive approach to quality that drives first pass yield improvements, reduces […]

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How to Perform a Job Safety Analysis (JSA)

A Job Safety Analysis (JSA) is a critical process for identifying and controlling workplace hazards. This guide walks you through each step of the JSA process, providing practical insights and tools to enhance your organization’s safety program. […]

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An Essential Guide to HIRA

Hazard Identification and Risk Assessment (HIRA) is a critical process for identifying potential hazards and managing workplace risks. This guide walks you through the four essential steps of HIRA and offers practical examples to help create a safer work environment. […]

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Guide to Pre-Shipment Inspections

Summary: Pre-shipment inspections (PSI) serve as a critical final quality gate that verifies products meet all specifications, standards, and contractual requirements before they leave the facility. When integrated with quality frameworks like ISO 9001 and ISO 2859-1 sampling standards, PSI provides systematic, evidence-based verification that protects both the manufacturer and the customer. Implementing digital pre-shipment […]

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