METTLER TOLEDO SQC-XP Statistical Quality Control Software for XP Precision Balances

Overview

The METTLER TOLEDO SQC-XP Statistical Quality Control software is a purpose-built, regulatory-compliant application designed exclusively for integration with the XP Series precision balances. It implements statistically rigorous process control methodologies—including X-bar and R charts, capability indices (Cp/Cpk), and real-time trend analysis—based on ISO 2859-1 (sampling plans), ISO 3534-2 (statistical terminology), and ICH Q5A/Q9 principles. Engineered for high-integrity environments, SQC-XP enables laboratories and production lines to monitor fill weight uniformity, tablet mass consistency, or net content compliance in accordance with mandatory requirements such as EU Directive 76/211/EEC (prepackaged goods), US FDA 21 CFR Part 11 (electronic records), and EU GMP Annex 11 (computerized systems). Its architecture ensures traceability, data integrity, and procedural adherence without requiring external PCs or third-party statistical packages.

Key Features

• Fully embedded operation via XP balance’s high-resolution color touchscreen—no external computer or network dependency required.
• Automated acquisition of weighing data directly from the balance sensor, eliminating manual transcription errors and ensuring ALCOA+ (Attributable, Legible, Contemporaneous, Original, Accurate) data governance.
• Real-time calculation of statistical parameters: mean, standard deviation, control limits (±3σ), process capability (Cp, Cpk), and out-of-control condition alerts (e.g., Western Electric rules).
• Multi-regulatory tolerance configuration: native support for EU e-mark compliance (food/cosmetics), Ph. Eur. Chapter 2.9.40 (pharmaceutical dosage units), and three user-defined tolerance sets for internal SOPs or customer-specific requirements.
• Dual-regulatory mode allows concurrent evaluation against two distinct legal frameworks—for example, validating pharmaceutical product weight against both USP and Japanese PMDA guidelines within a single measurement sequence.
• Batch-level reporting with PDF export, including summary statistics, control charts, violation logs, and operator ID timestamps—all digitally signed and time-stamped per 21 CFR Part 11 requirements.

Sample Compatibility & Compliance

SQC-XP supports all XP Series balances—from microbalances (XP2U, readability 1 µg) to heavy-capacity models (XP64000, max 64 kg)—ensuring consistent methodology across R&D, QC, and manufacturing scales. The software accommodates up to 100 discrete sample identifiers per session, each with configurable target weight, tolerance band, and acceptance criteria. All data handling conforms to ISO/IEC 17025:2017 (clause 7.5.2 on data management), EU GMP Annex 11 (validation of automated systems), and FDA guidance on data integrity (2018). Audit trails record every parameter change, result override, or user login event with immutable timestamps and operator credentials.

Software & Data Management

SQC-XP operates as a firmware-level application embedded within the XP balance OS—not as standalone desktop software. This eliminates version mismatch risks and guarantees deterministic response timing critical for regulated workflows. Data storage occurs locally on the balance’s secure internal memory with optional encrypted USB export. All reports include digital signatures compliant with eIDAS Regulation (EU No 910/2014). For enterprise integration, optional METTLER TOLEDO LabX™ connectivity enables centralized data aggregation, role-based access control, and automated backup to network drives or LIMS—fully supporting 21 CFR Part 11 audit readiness and GLP/GMP inspection protocols.

Applications

• Pharmaceutical manufacturing: Real-time tablet weight control during compression, capsule filling verification, and lyophilized vial fill checks per USP and Ph. Eur. 2.9.40.
• Food & beverage: Net content verification for prepackaged products subject to EU Directive 76/211/EEC and FDA 21 CFR 101.105.
• Cosmetics & personal care: Batch release testing for tube, bottle, or sachet fill weights aligned with CPNP and ASEAN Cosmetic Directive requirements.
• Chemical & industrial packaging: Verification of catalyst dosing, additive blending, or reagent kit assembly where mass consistency directly impacts reaction yield or safety.
• Contract manufacturing organizations (CMOs): Standardized QC execution across multiple client-specific SOPs using customizable tolerance templates and electronic signature workflows.

FAQ

Is SQC-XP validated for GMP environments?
Yes—SQC-XP is supplied with a comprehensive validation package including IQ/OQ documentation templates, test scripts, and evidence of firmware-level security controls meeting Annex 11 and 21 CFR Part 11 requirements.
Can SQC-XP be used with non-XP balances?
No—SQC-XP is exclusively licensed for METTLER TOLEDO XP Series balances due to its deep firmware integration and hardware-specific calibration data exchange protocol.
Does SQC-XP support multi-language interfaces?
Yes—the XP balance’s system language setting automatically applies to SQC-XP, supporting English, German, French, Spanish, Chinese, Japanese, and 12 additional languages.
How is data backup and recovery handled?
Local backups are performed automatically to internal flash memory; manual export to password-protected USB devices is supported. Optional LabX integration enables scheduled cloud or server-based archival with version history.
What training resources are available?
METTLER TOLEDO provides certified instructor-led workshops, interactive e-learning modules (including SOP simulation), and context-sensitive help embedded directly in the XP touchscreen interface.