Finish

Quality Standard

Quality Index £º

A,    Common Slabs: Normally , the quality index include the tolerance of the profile size , Un-plate , Angle, and the color         view etc. and we clarify them into them into 3 classes.¡ªfirst class or A class (Exactly situation) , 2 nd Class or B        class(Perfect Situation), 3 rd Class or C Class ( Check Our situation only).

B,    Curve Panels ( Hollow Pillars) : The quality index include the tolerance of the profile size, linear, and the shape        profile, and the color view etc. Just as the flat panel, we individual them into 3 classes.¡ªfirst class or A class (Exactly        situation) , 2 nd Class or B class(Perfect Situation), 3 rd Class or C Class ( Check Our situation).

C,    The main parameter as below £º

1,  The standard of slabs and Cut To size

A,  The Tolerance of the Profile Size

Unit: mm

£¨ Items £©

Polished & Honed

Roughed

Selected

Standard

Commercial

Selected

Standard

Commercial

Length & Width

-1.00¡ª0

-1.00¡ª0

-1.50¡ª0

-1.00¡ª0

-1.00¡ª0

-1.50¡ª0

Thickness

¡Ü 12

¡À 0.50

¡À 1.00

-1.50-- 1.00

-----

-----

------

£¾ 12

¡À 1.00

¡À 1.50

¡À 2.00

-2.00¡ª1.00

¡À 2.00

-3.00¡ª2.00

 

B,  The Tolerance of Scraggy (Cave or convex )

Unit: mm

£¨ Length £©

A class

B Class

C Class

¡Ü 400mm

0.20 mm

0.35 mm

0.50 mm

£¾ 400 ¡Ü 800mm

0.50 mm

0.65 mm

0.80 mm

£¾ 800mm

0.70 mm

0.85 mm

1.00 mm

C,  The Tolerance of the Angle

Unit: mm

Length

A class

B Class

C Class

¡Ü 400

0.30

0.40

0.50

£¾ 400

0.40

0.50

0.70

 

D ¡¢ The Appearance Index

Unit: Points

shortage

Inspection Items

Granites

Marbles/onyx

Shining

Shine degree

¡Ý 80 ¡ã

¡Ý 70 ¡ã¡¡¡¡

Background color

The different color situation showed in whole project or order

Similar and Harmonious

Similar and Harmonious

(Note: SL=Selected, ST=Standard, Co=Commerical)

SL

ST

CO

SL

ST

CO

Cracks

The Allow Range: Longer than 10mm ,

Position: Showed on the facing surface

0

0

0

0

1

2

Edge Broken

The Broken Part size range within : Length 4mm ¨C 10mm x Width 1.0mm -- -1.5mm

Position: Showed on the facing surface

0

1

2

0

1

2

Corner Broken

The Allowance size range within: 2.0¡ª 3.0mm x 2.0¡ª 3.0mm , Smaller than 2.0 x 2.0mm are out of inspection

0

1

2

0

1

2

Abnormal Color Spot

The Abnormal color spot size range is : Marble 30.0x 20.0mm ,(smaller the 6.0CM 2)

Granite 30.0 x 30.0mm (smaller than 9.0 CM 2 )

1

2

3

0

1

2

Abnormal color veins

Longer than 40.0mm

1

2

3

0

1

2

Nature Holes

Smaller than 2.0 x 2.0mm

--

--

--

0

Harmonious

Harmonious

Glue Situation

The Imaging of the glue are harmonious to the background

0

0

0

1

2

3

Note: The Travertine are Not included in above

E ¡¢ The Physical Characters

 

Inspection Items

Allowance

Marble

Granite

Density (g/cm3)

¡Ý 2.60

¡Ý 2.56

Water Absorbing %

¡Ü 0.50

¡Ü 0.60

Compressing MPa

¡Ý 50.0

¡Ý 100.0

At Dry

Bending Strength £¨ MPa £©

¡Ý 7.0

¡Ý 8.0

Water

2 ¡¢ The standard of Tiles and Composite Tiles

Just As same as Slabs or flat panels

But attention please £º

A ¡¢ The tiny damages of the back edges of the Granite Tiles is allowanced cause by the stone character limited.

B ¡¢ All the edges of the tile at the 1x 1mm beveled situation;

C ¡¢ The strength of the Composite Glue just match to the industrial standard.

D ¡¢ The general usage of the composite tiles is the Floor and the shorter wall ¡£

 

3 ¡¢ The indexes of the tops ( Pre-fabrication or completed tops)

A ¡¢ The main index as same as the Slabs £»

B ¡¢ The standard of the laminated edges £º One crack could happened at Granite tops, and 2 cracks could existed in the marble tops, and all the connection or cracks have to be nature and smoothly at the feeling;

C ¡¢ All the shaped edges of the curved shape have to be smoothly;

D ¡¢ The thickness of glue showed on the laminated edges of the tops have to less than 0.3mm ;

E ¡¢ All the color of the tops, which consist of several parts , have to be similar between any 2 connected parts of them ;

 

4 ¡¢ The standard of the Hollow Pillars

 

A ¡¢ The allowance Tolerance of the Profile Size

Unit: mm

Items

Marble

Granite

selected

Standard

Commercial

Selected

Standard

Commercial

Bowstring Length

-1.00¡ª0

-1.50¡ª0

--

-1.00¡ª0

-1.00¡ª0

--

Height

-1.00¡ª0

-1.50¡ª0

--

 

 

-1.50¡ª1.00

Arc Profile

0.80

1.00

1.20

0.80

1.00

1.20

Joint Angle

Less than theoretics

Less than theoretics

Less than theoretics

Less than theoretics

Less than theoretics

Less than theoretics

Linearity of Heig ht

¡Ü 800

0.60

0.80

1.00

0.80

1.00

1.20

£¾ 800

0.80

1.00

1.20

1.00

1.20

1.50

Un-flat (Tops & Bottom)

0.40

0.60

0.80

0.40

0.60

0.80

Thickness

¡À 1.00

¡À 1.00

-1.50-- 1.50

¡À 1.00

¡À 1.00

-1.50-- 1.50

Note: The data above listed for Polished and Honed only; If Rough finishes inquiry, then the Tolerances need to be confirmed base on discussing;

 

 

D ¡¢ The standard of the appearance

Unit: Points

shortage

Inspection Items

Granites

Marbles/onyx

Shining

Shine degree

¡Ý 80 ¡ã

¡Ý 70 ¡ã¡¡¡¡

Background color

The different color situation showed in whole project or order

Similar and Harmonious

Similar and Harmonious

(Note: SL=Selected, ST=Standard, Co=Commercial )

SL

ST

CO

SL

ST

CO

Cracks

The Allow Range: Longer than 10mm ,

Position: Showed on the facing surface

0

0

0

0

1

2

Edge Broken

The Broken Part size range within : Length 4mm ¨C 10mm x Width 1.0mm -- -1.5mm

Position: Showed on the facing surface

0

1

2

0

1

2

Corner Broken

The Allowance size range within: 2.0¡ª 3.0mm x 2.0¡ª 3.0mm , Smaller than 2.0 x 2.0mm are out of inspection

0

1

2

0

1

2

Abnormal Color Spot

The Abnormal color spot size range is : Marble 30.0x 20.0mm ,(smaller the 6.0CM 2)

Granite 30.0 x 30.0mm (smaller than 9.0 CM 2 )

1

2

3

0

1

2

Abnormal color veins

Longer than 40.0mm

1

2

3

0

1

2

Nature Holes

Smaller than 2.0 x 2.0mm

--

--

--

0

Harmonious

Harmonious

Glue Situation

The Imaging of the glue are harmonious to the background

0

0

0

1

2

3

Note: The Travertine are Not included in above

 

5 ¡¢ The standard of the Solid Columns

Reference the details of Curve Panel standards which listed in Item 4#.

 

6 ¡¢ The standard of the Moulding

A ¡¢ Color and Veins: All the raw material used into the same order have to be similar or harmonics;

B ¡¢ Physical Indexes: Refer to the related details of Slabs

C ¡¢ Profile Tolerance: Within 0.30mm (from the products to the profile template)

D ¡¢ Linearity error : Within 0.5mm / Linear Meter

E ¡¢ Finishing: Match to the inquiry or the clients' samples;

 

7 ¡¢Water-jet Polished Medallion Quality Satandard

A ¡¢ Shining Degree: > or =80 degree;

B ¡¢ Color and veins: Normal standard above, and all the parts of one kind

of material, which showed in the same medallion ,have to be controlled in the same or similar each other;

C ¡¢ The profile Tolerance: Within -0.5 ¨C 1.00mm at the Diameter, and 0- -0.3mm at the Joints, linearity and the angles .

D ¡¢ Any Abnormal color ,veins, obviously Glue, Crack, Broken showing are out of the medallion inspection standard allowance.

 

•  The standard of the Water-jet Borders

•  The basic inspection details as same as the Polished Medallion;

•  The standard linear error of the edges is: 0.3mm ;

•  The profile size error : Length -0.5 --- 0.0 mm , Width -0.3-- -0.0 mm , Thickness -0.3¡ª 0.2 mm ;

•  The shortage allowance : Ref. to the details of inspection standard of Polished Medallion .

 

 

 

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