Testing services / Kappa number of paper, board, or pulp according to ISO 302

Kappa number of paper, board, or pulp according to ISO 302

The Kappa number describes the lignin content or bleachability of pulp. With this test, the kappa number is determined as per the ISO 302 standard, which applies to all kinds of chemical and semi-chemical pulps within a Kappa number range from 1 to 100.

For pulps with higher Kappa numbers, the ISO 3260 procedure is recommended.

Suitable sample matrices
Paper, board, pulp
Typical turnaround time
3 weeks after receiving the samples
Available quality systems
Accredited test method
Device types
Standard specific equipment
Standard
ISO 302
Method expert
Sanna Laukkanen
Sanna Laukkanen
BiorefineryBiorefineryPaper and boardPaper and board

Pricing and online order

Price per sample (Excl. VAT):
136 €

We also charge a 97 € service fee per order.

Large batches of samples are eligible for discounts.

Samples are entered during checkout.

Our experts review all orders to ensure the testing method is suitable for your needs and samples.

Questions? We're happy to help.

Questions? We're happy to help.

Business hours: Mon–Fri 9 AM – 5 PM Finnish time (EST/EEST)

Ringing phone

Other tests we offer

Metal screening by ICP-SFMS (semi-quantitative)

Online ordering available
753 €
Read more

Fiber furnish analysis with the Herzberg staining test

ISO 9184-3
Online ordering available
168 €
Read more

Total organic fluorine (TOF) content in challenging sample materials (chemicals, oils, etc.)

ASTM D7359
350–600 €
Read more

CHNOS analysis of organic materials

Online ordering available
119–415 €
Read more

Lignin ash content

NREL/TP -510-42622
Online ordering available
99 €
Read more

Ash content of paper, board or pulp

Online ordering available
67 €
Read more

ISO brightness of paper or paperboard

ISO 2470-1
Online ordering available
67 €
Read more

Color fastness of dyed paper and board in contact with food

EN 646
178 €
Read more

Folding endurance of paper and board

Online ordering available
120 €
Read more

Specific surface area (BET)

ISO 9277
Read more
...and more than 700 other happy clients

Ask for an offer

Fill in the form, and we'll reply in one business day.

Answering the following questions helps us prepare an offer for you faster:

  • How many samples do you have and what is the sample material?
  • Do you have a recurring need for these tests? If yes, how often and for how many samples at a time?

Have questions or need help? Email us at or call our sales team.