Does the pen tip turn color after the first several uses? Mine went from yellow to purple.

Mine's half of the tip turned from orange into purple the first time I used it. Some say it will fade back over time while others say it's permanent. I don't know about validity of readings but I suppose they should still be consistent.

can this be used on fabrics?

Sorry, it cannot. It only can be sued on paper or paperboard products. Thank you.

Would this work to test stickers?

I haven't tried it specifically on stickers, but it has worked on all the various surfaces I have tested so far.

Will this work on black paper

I'm not sure that it would, but I haven't specifically tried it on black paper.

Lineco pH Testing Pen for Paper or Paperboard Products.

Lineco pH Testing Pen for Paper or Paperboard Products.

产品编号: 74895050

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细节

Brand
Lineco
Manufacturer
Lineco
Recommended uses for product
pH testing for
Unit count
1.0 count
pH range
6.5-14

📏pH range 6.5-14

⏱️Results in seconds

🖊️Compact pen design

描述

🖋️ Archive with confidence—test your paper’s pH in a snap!

PRECISION P H RANGE - Accurately tests paper acidity from 6.5 to 14 for reliable archival quality checks.
COLOR CODED CLARITY - Purple line means archival-safe; yellow or clear signals potential paper degradation—never second guess your collection.
USER FRIENDLY DESIGN - Sleek pen form factor fits perfectly in your toolkit for on-the-go testing.
TRUSTED BY PROFESSIONALS - Backed by 190+ reviews and a solid 4.4-star rating, join the savvy curators who rely on Lineco.
INSTANT ARCHIVAL VERIFICATION - Get clear pH results in seconds—no waiting, no guesswork.

The Lineco pH Testing Pen offers a quick, precise way to determine the archival quality of paper and paperboard products. With a pH detection range of 6.5 to 14, it delivers instant color-coded results—purple for archival-safe, yellow or clear for non-archival—making it an essential tool for professionals managing valuable documents or collections.

规格

ASIN	B000KNJCSS
Best Sellers Rank	733,589 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 31 in pH Meters
Brand	Lineco
Customer Reviews	4.4 out of 5 stars 190 Reviews
Item Weight	0.01 Kilograms
Manufacturer	Lineco
Recommended Uses For Product	pH testing for paper products
Recommended uses for product	pH testing for paper products
Sterility Rating	6.5-14
UPC	099295003506 099295530811
Unit Count	1.0 Count
Unit count	1.0 Count
pH range	6.5-14

V**N

Expensive but works

12 quid for a pen - pfff. but it does the job

15.07.2023

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