Ensuring Quality That Speaks
Through Every Tile

At AQS, Porcelain Tiles undergo rigorous testing — from raw materials to final finish.
Our quality control process ensures your walls reflect not just beauty, but trust

Porcelain Tile Inspection in India

Porcelain tiles are known for their durability, low water absorption, and premium finishes, making them one of the most exported tiles from India. However, variations in production quality can lead to problems such as uneven thickness, shade differences, edge chipping, warping, and polish inconsistencies. These defects can result in shipment rejection, additional costs, and brand reputation damage.

With years of expertise in the Indian tile export industry, AQS acts as a trusted third-party partner for importers worldwide. Our inspection services give you the confidence that your porcelain tiles will be consistent, defect-free, and ready for the global market, helping you avoid costly disputes and delays.

Porcelain tiles quality check by AQS tile inspection company in India
AQS Testing Parameters

AQS Inspection Process for
Porcelain Tiles

We implement specialized inspection protocols for GVT and PGVT tiles, focusing on surface finish, dimensional accuracy, and mechanical strength. Our detailed checks ensure each tile meets international quality standards, delivering flawless, export-ready products for premium markets.

factory visit and production readiness check

Factory Visit & Production Readiness Check

Our inspection starts with a hysical visit to the manufacturing plant to verify that the entire production quantity is ready for inspection. We check:

  • Produced quantity vs. client order
  • Batches arranged by size and design (60x60 cm, 60x120 cm)
  • Proper identification of pallets and segregated lots

01

warehouse stock inspection

Warehouse
Stock Inspection

We verify that:

  • Finished material is properly stored and not mixed
  • Shade and batch stickers are visible and aligned
  • Stock is stacked safely, minimizing damage during storage

02

aql based random sampling

AQL-Based
Random Sampling

Random boxes are selected using AQL standards based on lot size. Boxes are chosen from:

  • Top, middle, and bottom rows of pallets
  • Multiple pallets from different production batches This ensures no pre-selected or hand-picked tiles are used to mislead quality checks.

03

box weight measurement
Box Weight
Measurement

Each selected box is weighed using a calibrated digital scale. We compare actual weight to standard weight charts to detect:

  • Under-filled boxes
  • Moisture-affected tiles
  • Non-uniform packing Atypical weights are documented and flagged for re-check

04

transfer to qc zone
Transfer to Inspection
Area (QC Zone)

Boxes are brought to the factory’s designated QC area, which must :

  • Be clean, level, and well-lit
  • Allow multiple tiles to be laid flat for testing
  • Provide enough space to simulate full-size tile installation (especially for 60x120 cm tiles)

05

box packaging label check
Box Artwork & External
Label Check

We check the packaging for:

  • Design code, finish type (GVT or PGVT)
  • Shade number, size, quantity per box
  • Manufacturing date, batch code, factory details
  • Exporter or client branding (if private-labeled) All elements must match client-approved artwork and PO terms.

06

internal packaging & protection inspection
Internal Packaging &
Protection Inspection

Internal packaging must prevent tile damage in shipping and handling. We check for:

  • Surface protector sheets (paper/foam between each tile)
  • Corner spacers/protectors (especially for 60x120 cm tiles)
  • TileTile face direction uniformity (print-up or print-down)
  • Clean stacking, no loose tiles or debris inside box

Improper internal packaging is documented with photos and client notified

07

tile laying for visual assessment
Tile Laying for
Visual Assessment

Tiles from each selected box are laid out on a flat surface to simulate real installation. This critical step reveals defects not visible inside packaging.

We check

  • Shade consistency between boxes
  • ColorGloss level variation (especially in PGVT)
  • Design alignment (e.g., book-match, vein patterns)
  • Surface defects: black spots, printing errors, glaze waves, chipping, air bubbles, dullness
  • Grout joint visibility and uniformity
  • Edge rectification quality

We document even minor variations and note if they’re random or batch-specific

08

reference master tile matching
Reference Master
Tile Matching

The laid tiles are compared with the client-approved reference tile (master sample) to verify:

  • Exact design match (including grain direction or texture)
  • Color tone and surface finish consistency
  • Gloss or matt finish value This avoids surprises upon container opening by the importer.

09

dimensional and technical testing
Dimensional & Technical
Testing (As Per ISO Standards)

Using multiple-point measurements, we check:

  • Size, Diagonal, and Thickness (ISO 10545-2)
  • Flatness & Warpage (ISO 10545-2)
  • Water Absorption (ISO 10545-3)
  • Breaking Strength / Modulus of Rupture (ISO 10545-4)
  • Surface Abrasion / PEI Rating (ISO 10545-7)
  • Scratch Resistance (Mohs Scale)
  • Gloss Meter (L Value or GU Reading)
  • Marker/Stain Resistance
  • Slip Resistance (R-Rating or Wet Test)

10

final report & quality verdict
Final Reporting &
Quality Verdict

Within 24 hours, AQS provides a full inspection report containing:

  • Detailed findings
  • Size and lab test results
  • Defect photos (with remarks)
  • Shade variation and finish comparison
  • Inspector conclusion: Approved / Conditional / Re-inspection Needed

11

factory visit and production readiness check

Factory Visit & Production Verification

The inspection begins by confirming the produced quantity against the client’s purchase order, verifying that the entire batch is ready for inspection.

warehouse stock condition check

Warehouse Physical
Stock Check

We inspect the warehouse to verify:

  • Stock is well-segregated and labeled by batch/shade
  • Proper stacking and pallet organization
  • No visible transport or storage damage

02

aql based random sampling

AQL-Based
Random Sampling

Boxes are selected randomly using AQL sampling standards from multiple pallets and locations to ensure full-lot representation.

03

box weight measurement

Box Weight
Measurement

Each selected box is weighed using a calibrated digital scale to detect :

  • Under/overweight boxes
  • Moisture retention
  • Inconsistencies in tile count or packing

04

transfer to qc area
Transfer to
QC Area

Boxes are moved to a clean, level QC area inside the factory for further testing under controlled lighting and conditions

05

box label and artwork check
Box Artwork &
Packaging Check

We verify:

  • Product code, batch, and shade number
  • Size and thickness markings
  • Factory logo, branding (if any), and label position
  • Consistency with client-approved packaging format

06

internal packaging inspection
Internal Packing &
Tile Protection Check

We inspect the internal packaging, ensuring :

  • Use of separator sheets between tiles
  • Corner protectors or spacers (if applicable)
  • Proper alignment and clean packing

Unglazed tiles are typically heavier and denser — requiring reliable protection during transit

07

tile laying visual surface inspection
Tile Laying & Visual
Surface Inspection

Tiles are laid on the floor to simulate real installation. Our inspection includes:

  • Surface quality: pores, spots, material inclusions, visible cracks
  • Color uniformity within and across boxes (especially for full-body tiles)
  • Joint alignment and tile squareness
  • Edge quality and machining precision

Although these tiles are not glossy, we check for homogeneous texture and clean finishes.

08

reference sample comparison
Reference Tile
Comparison (if provided)

If the client has supplied a master reference tile, we compare:

  • Color tone and surface grain
  • Texture and body consistency
  • Suitability for wall cladding systems, elevation mounting, or Accuracy of double-loading or speckled patterns (if applicable)

09

technical testing iso
Technical Testing & Performance
Evaluation (ISO Standards)

The final report includes:

  • Size, Thickness & Diagonal Measurement (ISO 10545-2)
  • Flatness & Warpage Check (ISO 10545-2)
  • Water Absorption (ISO 10545-3)
  • Breaking Strength & Modulus of Rupture (ISO 10545-4)
  • Abrasion Resistance (ISO 10545-6)
  • Scratch Resistance (Mohs Scale)
  • Slip Resistance / Anti-Skid Rating (DIN / R Rating)
  • Stain & Chemical Resistance (ISO 10545-13 & 14)

10

final inspection report
Final Reporting &
Inspection Summary

All inspection findings are compiled into a detailed PDF report including:

  • Tile photos (visuals, laid view, defects)
  • Size, thickness, warpage, and absorption test results
  • Surface defect remarks
  • Inspector comments and pass/fail status

The report is delivered within 24 hours of inspection completion.

11

factory visit

Factory Visit & Quantity Confirmation

We begin by verifying the total produced quantity against the client’s purchase order. We also check batch organization based on:

  • Size (e.g., 600x600mm, 600x900mm)
  • Finish (stone-look, matte, textured)
  • Thickness (typically 20mm or as specified)

01

warehouse stock handling

Warehouse Stock
Condition Check

Our inspector verifies:

  • Safe and even stacking of heavy boxes
  • Pallet wrapping and storage conditions
  • Batch/shade stickers and identification

02

random sampling aql method

Random Sampling –
AQL Method

Boxes are selected from different pallets and levels using AQL-based random sampling to ensure inspection coverage across the entire production.

03

box weight check

Box Weight
Verification

Due to the heavier nature of pavers, we:

  • Weigh boxes using industrial-grade digital scales
  • Ensure correct piece count
  • Check for overfilled or under-packed boxes
  • Detect moisture-related weight inconsistencies

04

transfer to factory qc area

Transfer to
QC Zone

Selected boxes are moved to a clean, level surface in the factory’s QC area for full visual and technical assessment.

05

labeling check

External Box &
Labeling Check

We verify that each box is correctly labeled with:

  • Product code and size
  • Factory logo or private label branding
  • Batch/shade number
  • Manufacturing date

This helps prevent errors during dispatch or client warehousing.

06

internal packaging inspection

Internal Packaging
Quality Inspection

We inspect:

  • Use of foam spacers or separators (to avoid edge damage)
  • Proper alignment of 20mm tiles inside boxes
  • Box strength and corner integrity (especially for heavy pavers)

07

tile laying visual surface inspection

Tile Laying & Visual
Surface Inspection

Tiles are laid out to simulate real usage (e.g., garden or patio flooring). We inspect:

  • Surface uniformity (texture, tone, anti-slip finish)
  • Defects like air bubbles, chips, corner damage, or sharp edges
  • Design consistency (stone, wood, or concrete finish alignment)
  • Edge finish — especially for rectified pavers

This step ensures that all visual elements perform well when installed side-by-side.

08

master sample comparison

Master Sample
Comparison (if applicable)

If the client has provided a reference sample, we compare:

  • Color tone
  • Surface texture and finish
  • Edge and thickness details
  • Anti-slip coating consistency

09

technical testing iso based performance checks

Technical Testing & ISO-Based
Performance Checks

Using multiple-point measurements, we check:

  • Size, Thickness & Diagonal Accuracy (ISO 10545-2)
  • Flatness & Warpage (ISO 10545-2)
  • Water Absorption (ISO 10545-3)
  • Breaking Strength & Load-Bearing Capacity (ISO 10545-4)
  • Deep Abrasion Resistance (ISO 10545-6)
  • Anti-Slip Resistance (DIN 51130 / R Rating)
  • Scratch & Impact Resistance (Mohs & Drop Test)

10

final inspection report

Final Reporting &
Quality Confirmation

Our final report includes:

  • Dimensional test results
  • Mechanical performance metrics
  • Surface defect photos
  • Packaging assessment
  • Inspector’s comments and final verdict

The report is shared within 24 hours, enabling clients to approve or take action promptly.

11

Why choose AQS tile inspection company in India for tiles quality control and inspection services

Why Porcelain Tile Inspection Matters

Porcelain tiles are often chosen for premium projects, luxury spaces, and large-scale commercial use, which means even the smallest defect can impact the result. Unlike ceramic, porcelain is denser and more expensive, making the stakes higher if quality is overlooked.

By investing in AQS porcelain tile inspection services in India, importers secure peace of mind knowing that every tile shipped has been checked for consistency, durability, and market readiness—reducing risks and strengthening long-term supplier relationships.

Know More, Worry Less

Your Complete Guide to Frequently Asked Questions

A Quality Services inspector inspecting tiles
Porcelain tiles are a high-value product. Inspection ensures they meet international standards, preventing costly rejections, disputes, or customer complaints.
Typical issues include size variation, shade inconsistency, edge chipping, warping, glaze/polish differences, and poor packaging.
Ideally, at multiple stages—sample matching, in-process production, final random inspection, and container loading—to ensure consistency.
AQS delivers detailed inspection reports within 24 hours. Same-day reporting is also available upon request.
No, we also inspect ceramic tiles, sanitaryware, quartz, marble, granite, and other stone products for global importers.
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