Kvadrat Tonus 4 (BT4)
Grade D
A part of the Standard Collection
Abrasion
(resistance to damage from wear and rubbing)
- Heavy-duty specification ASTM 4157-02 modified (#10 cotton duck); 30,000 double rubs Wyzenbeek method.
- Heavy-duty specification ASTM D4966-98 (21 oz. weight); 40,000 cycles Martindale method.
Fire Retardancy
(resistance to burning)
Seating upholstery meets Californian Technical Bulletin 117-2013; vertical surface fabrics meet ASTM-E-84. Tested on Haworth upholstered panels.
Colorfastness to Light
(fabric retains its color when exposed to light)
All textiles meet AATCC option 1 or 3 - 2003, Class 4 minimum at 40 hours.
Physical Properties
(resistance to pilling, tearing and coming apart at the seams)
Seating upholstery meets:
- Brush pill ASTM D3511, 3-4 minimum
- Breaking strength ASTM D5034-95 50lbs. minimum in warp and weft
- Seam slippage ASTM D3597-02 D434-95 25 lbs. minimum in warp and weft.
Colorfastness to Wet and Dry Crocking
(color will not rub off wet or dry fabric to soil clothes , hands or other materials)
Seating upholstery meets AATCC8-Dry Crocking, Grade 4 minimum; vertical surface fabrics meet AATCC8-Dry Crocking, Grade 3 minimum.
Available Colors

100
BT4-100

118
BT4-118

125
BT4-125

128
BT4-128

129
BT4-129

130
BT4-130

131
BT4-131

132
BT4-132

135
BT4-135

207
BT4-207

210
BT4-210

216
BT4-216

224
BT4-224

240
BT4-240

244
BT4-244

364
BT4-364

374
BT4-374

394
BT4-394

424
BT4-424

440
BT4-440

454
BT4-454

464
BT4-464

474
BT4-474

508
BT4-508

554
BT4-554

605
BT4-605

608
BT4-608

609
BT4-609

610
BT4-610

613
BT4-613

615
BT4-615

619
BT4-619

631
BT4-631

634
BT4-634

636
BT4-636

654
BT4-654

664
BT4-664

684
BT4-684

690
BT4-690

754
BT4-754

764
BT4-764

854
BT4-854

914
BT4-914

934
BT4-934

954
BT4-954

964
BT4-964

974
BT4-974
Technical Information
-
Composition
WOVEN
-
Content
10% HELANCA
-
Content
90% WOOL
-
Width
55.12 IN
-
Pattern Repeat H
NO REPEAT
-
Pattern Repeat V
NO REPEAT
-
Directional
YES
-
Image Shown
DOWNROLL
-
Abrasion
100,000
-
Weight (Per Linear Yard)
21.1 OZ
-
Backing
NO
Available on these products
-
Haworth Collection
- BuzziBalance
- BuzziBlinds
- BuzziCactus
- BuzziCane
- BuzziCube Flat
- BuzziDesk
- BuzziDesk FlipFlop
- BuzziDonut
- BuzziFloat
- BuzziFree
- BuzziFrontDesk
- BuzziHat
- BuzziHood 3D
- BuzziHood Flat
- BuzziHub
- BuzziJet
- BuzziMe
- BuzziMilk Seating
- BuzziMoon
- BuzziNordic ST100
- BuzziPicNic
- BuzziPlant
- BuzziPouf 3D
- BuzziPouf Flat
- BuzziProp
- BuzziPuzzle
- BuzziScreen Mix
- BuzziSpark Pillows
- BuzziSpark Seating
- BuzziSpot 3D
- BuzziSpot Flat
- BuzziTotem
- BuzziZepp