What is ISO 8562 - Paper and board - Determination of alkali reserve about?
ISO 8562 is an international standard that discusses the determination of the alkali reserve. ISO 8562 specifies the stem wedge angle intended to ensure a secure assembly between the handlebar stem and the fork stem.
Note: The wedge angle has the same function as the angle of the expander cone.
Who is ISO 8562 - Paper and board - Determination of alkali reserve for?
ISO 8562 on paper and board - determination of alkali reserve is useful for:
- Paper and board recycling industries
- Chemical laboratories
- Paper and board manufacturing companies
- Laboratories for paper and board
Why should you use ISO 8562 - Paper and board - Determination of alkali reserve?
Alkali reserve is used to retard future acid hydrolysis of the cellulose of the paper so that it retains its flexibility and brightness for a longer period of time after treatment.
Recovered paper is a valuable raw material, widely used in global markets. ISO 8562 helps to determine the alkali reserve to stabilize the paper against further acid attack.
This test method described in ISO 8562 enables you to enhance the quality and sturdiness of the paper, paper products, and board.
The users of ISO 8562 can follow the procedure and calculation to get precise results, enabling them to prepare the test reports that assist in verifying and customizing the texture of the paper and board by determining the alkali reserve as per the customer’s demands.
What’s changed since the last update?
BS ISO 8562:2022 supersedes BS 6102‑12:1991, which is withdrawn.
BS ISO 8562:2022 includes some technical changes with respect to BS 6102‑12:1991.
These include:
- A tolerance to the angle in Figure 1 was added
- References to standards were updated