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Xiamen Quan Stone Import & Export Co., Ltd. Quality Control

Certification
Good quality Quartz Stone Countertops for sales
Good quality Quartz Stone Countertops for sales
Customer Reviews
Awesome experience at Quan stones. Their quartz countertops throughout the kitchen and bathroom is beyond my expectation , amazing !

—— Eddie M.

Great company. Was about to use Ikea or home depot . Then I was refer to this company and their price was cheaper, quality 10x better .

—— Brian B.

"The experience with Quan Stone has truly been rewarding. Not only is the quality great, but the prices are just as great.

—— Alexsandr

The measurements were wonderfully accurate and the result was the most beautiful countertops and island that I have ever had. Thanks so much to them.

—— Elena

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QC Profile

We have a QC teams of 12 members specialzing in inspecting all kinds of granite and marble products .

Products including 

 

Quartz /granite /marble countertops vanity tops 

 

Granite and marble tiles and slab 

 

Granite paving stone and culture marble tile 

 

Grade A:

 

The items have to be calibrated. The maximum deviation of nominal sizes must not exceed:

  • Tiles: caliber +/- 0.5 mm,
  • Skirting boards: caliber +/- 0.5 mm
  • Edges of tiles must be grinded and polished in corners.
  • Skirting boards must have a standard bevel of 3 mm/45° at the long edge at upper side.

 

 

The caliber of other products (grade A) is always as follows:

 

  • Window benches: caliber +/- 1.0 mm
  • Wall caps: caliber +/- 1.0 mm
  • Step risers: caliber +/- 1.0 mm
  • Stair cladding: caliber +/- 1.0 mm
  • Outdoor terrace tiles: caliber +/- 1.0 mm
  • Block steps: caliber +/- 1.0 mm
  • Pavings caliber +/- 1.0 mm
  • Kerbs: caliber +/- 1.0 mm
  • Palisades/pillars: caliber +/- 1.5 mm
  • Stepping stones: caliber +/- 1.5 mm
  • All bevels have to be 45°, the width of bevel will be communicated in the inquiries of the purchaser (e.g. 2 mm, 3 mm, 5 mm etc.)
  • Tiles and floor plates with a polished surface and/or polished revolving edge must have polished fases.
  • The max. convex deviation
    • for a measuring length of 300 mm is 1.00 mm
    • for a measuring length of 500 mm is 1.50 mm
    • for a measuring length of 800 mm is 2.00 mm
    • for a measuring length of 1000 mm is 2.50 mm.
  • The max. concave deviation
    • for a measuring length of 300 mm is 1.00 mm
    • for a measuring length of 500 mm is 1.25 mm
    • for a measuring length of 800 mm is 1.50 mm
    • for a measuring length of 1000 mm is 2.00 mm.

 

 

Grade B:

  • Length and width for tile sizes less than 600 mm: +/- 1.0 mm
  • Length and width for tile sizes more than 600 mm: +/- 2.0 mm
  • Thickness of tiles from 8 to 20 mm: +/- 1.0 mm
  • Thickness of tiles from 21 to 30 mm: +/-2.0 mm
  • For other thicknesses of tiles: +/- 2.0 mm
  • Edges of tiles must be grinded and polished in corners.

 

  • Skirting boards: +/- 1.0 mm
  • Skirting boards must have a standard bevel of 3 mm/45° at the long edge at upper side.

 

The caliber of other products (grade B) is always as follows:

 

  • Window benches: caliber +/- 2.0 mm
  • Wall caps (from 20 mm thickness onwards): caliber +/- 2.0 mm
  • Step risers: caliber +/- 2.0 mm
  • Stair cladding: caliber +/- 2.0 mm
  • Outdoor terrace tiles: caliber +/- 2.0 mm
  • Block steps: caliber +/- 2.0 mm
  • Pavings (from 30 mm thickness onwards) caliber +/- 2.0 mm
  • Kerbs: caliber +/- 2.0 mm
  • Palisades/pillars: caliber +/- 2.5 mm
  • Stepping stones: caliber +/- 3.0 mm

 

  • All fases have to be 45°, the width of fases will be communicated in the inquiries of the purchaser (e.g. 2 mm, 3 mm, 5 mm etc.)

 

  • Tiles and floor plates with a polished surface and/or polished revolving edge must have polished fases.

 

  • The max. convex deviation
    • for a measuring length of 300 mm is 2.0 mm
    • for a measuring length of 500 mm is 3.0 mm
    • for a measuring length of 800 mm is 3.5 mm
    • for a measuring length of 1000 mm is 4.0 mm.
  • The max. concave deviation
    • for a measuring length of 300 mm is 1.0 mm
    • for a measuring length of 500 mm is 2.0 mm
    • for a measuring length of 800 mm is 2.5 mm
    • for a measuring length of 1000 mm is 3.0 mm.

 

Specification:

Texture of front side of facing tiles must be as follows:

 

  • Polished surface – with mirror shine, direct reflection of objects, without processing signs from the previous operation

 

  • Honed surface – no marks of processing from the previous

 

  • Grinded – equally rough surface with marks of processing. These marks can only be done by grinding process; the surface thickness difference must be no more than 0.5 mm.

 

  • Cut – unevenly rough surface with uneven surface; the surface thickness deviation must be no more than 2 mm (for more details please look at the grades A and B.

 

  • Ultrasonic processing – with distinct color and picture of stone.

 

  • Flamed finish – rough surface with peeling marks.

 

  • Bush hammered – equally rough surface with uneven surface

 

  • Other types of finishing can possibly be approved by the customer.

 

  • Grade A and grade B items must not have visible damages at any side. They must not exhibit shooting lines, cracks, fissures, damaged edges, rust marks, uneven fases, nor black or white spots.

 

  • Chips length not exceeding 1 mm along the edges of the perimeter of the tiles.
  •  
  • Surface must not exhibit (micro) holes or uneven inclusions
  •  
  • Items must neither exhibit bearing damages, nor weathering damages.
  •  
  • Physico-mechancial property of natural stones must satisfy the requirements of DIN 52008, DIN 52104-1, DIN 52108, EN 772-4, EN 771-6, EN 772-11, EN 772-20, EN 1341, EN 1342, EN 1343, EN 1467, EN 1468, EN 1469, EN 1925, EN 1926, EN 12057, EN 12058, EN 12059, EN 12326-2, EN 12370, EN 12371, EN 12372, EN 12407, EN 12440, EN 12670, EN 13383-1, EN 13383-2, EN 13364, EN 13755, EN 13919, EN 14066, EN 14146, EN 14147, EN 14157, EN 14158, EN 14205, EN 14231, EN 14579, EN 14580 and EN 14581.

Certifications
  • Standard:CE EPREI

    Number:2010-C131-CPD

    Issue Date:2010-07-23

    Expiry Date:2030-07-22

    Scope/Range:EN1469 Natural stone products

    Issued By:CHINA CE EPREI

  • Standard:OMA -CE

    Number:10038862

    Issue Date:2010-07-23

    Expiry Date:2030-07-22

    Scope/Range:ENGINEERING STONE

    Issued By:OMA

Contact Details
Xiamen Quan Stone Import & Export Co., Ltd.

Contact Person: Mr. Mark Liu

Tel: 86-592-5792821

Fax: 86-592-5256391

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