PH test Acid Free and Weak Acid Item PH test Acid Free and Weak Acid Item
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E series
Item
Code
Item Name PH Test Result Color and Texture
Assorted Double Sided Solid Origami
ACH-2007
Strong Duo Solid 18c 6'' 40s
acid free

S series-1
Item
Code
Item Name PH Test Result Color and Texture
Design Origami
BKC100
Gradation Corona 4c 6'' 25s
acid free
Chiyogami Origami
KMC200
Komon 4p3c 6'' 48s
acid free
SRF200
Saika Chiyogami Fan 4c 6'' 48s
weak acid
AYC200
4 Season Chiyogami 4p 6'' 40s
weak acid
FLC200
Floral Print 5p 6'' 40s
acid free
ICY200
Ichimatsu Chiyogami 4p 6'' 40s
acid free
Washi Chiyogami Origami
HW-925
Washi Assorted Solid 11c 6'' 20s
weak acid
WCF200
Washi Saika 4p 6'' 24s
weak acid
WCAC200
Washi Ayano 8p 6'' 24s
weak acid

S series-2
Item
Code
Item Name PH Test Result Color and Texture
Washi Origami
NWZ350A
Shinwazome 7p 6'' 7s
weak acid
YZA350E
Yuzen Washi 8p 6'' 8s
weak acid
YZA350G
Aizome Washi 8p 6'' 8s
weak acid
LW-151
Race Washi Ichimatsu 4c 6'' 16s
weak acid
LW-152
Race Washi Wave 4c 6'' 16s
almost acid free
YW-401
Momi Washi 6'' 25s
weak acid
YW-102
Yuzen Washi 4'' 16s+Plain 16s
Design Washi: weak acid
Plain Washi: acid

T series-1,2
Item
Code
Item Name PH Test Result Color and Texture
Special Paper Origami
903351
Acid & Lignin Free Dot 4c 6'' 24s
acid free
Maker's catalogue indicates that this item is Acid & Lignin Free.
Washi Chiyogami Origami
018033
Economy Washi Chiyogami 10p 6'' 100s
almost acid free
Washi Origami
012002
Washi Chiyogami 8p 4.7'' 8s
weak acid

K series Selected Items
Item
Code
Item Name PH Test Result Color and Texture
K4603,K5470,K5534,K5575
weak acid
K5580,K5700,K6299,K6367
weak acid
K6586,K6588,K6593,K6603
weak acid
K6640,K6758,K6845,K6846
weak acid
K6861,K7096,K7104,K7216
weak acid

N series Selected Items
Item
Code
Item Name PH Test Result Color and Texture
N2,N13,N18,N43
weak acid
N73,N74,N90,N91
weak acid
N113,N117,N118,N200
weak acid
N202,N208,N264,N265
weak acid
N279,N280,N328,N330
weak acid
N360,N362,N364,N367
weak acid
N385,N391,N396,N419
weak acid
N424,N428,N432,N433
weak acid