Standard Svensk standard · SS-ISO 3688:2023

Massa - Laboratorieark för mätning av diffus blå reflektansfaktor (ISO 3688:2022, IDT)

Status: Gällande

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Standard Svensk standard · SS-ISO 3688:2023

Massa - Laboratorieark för mätning av diffus blå reflektansfaktor (ISO 3688:2022, IDT)
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Omfattning
This document specifies two procedures for the preparation of laboratory sheets prior to measuring optical properties. One is the preparation of pads in a Büchner funnel using a filter paper or a wire screen and the other one is the preparation of laboratory sheets in a standard sheet former (conventional or Rapid Köthen).


This document is applicable to all wood pulps and to most other types of pulp.


It is not applicable to pulps with very long fibres, such as those made from unshortened cotton, flax and similar materials, unless they are reduced to a suitable fibre length (about 2 mm) before performing the methods.


It is not applicable to recycled pulps (see ISO 21993).


It is not applicable to opacity measurements or to the determination of light scattering and absorption coefficients.

Ämnesområden

Massa (85.040)


Köp denna standard

Standard Svensk standard · SS-ISO 3688:2023

Massa - Laboratorieark för mätning av diffus blå reflektansfaktor (ISO 3688:2022, IDT)
Prenumerera på standarden - Läs mer Dölj
Pris: 1 013 SEK
standard ikon pdf

PDF

Pris: 1 013 SEK
standard ikon

Papper

Pris: 1 620,80 SEK
standard ikon pdf + standard ikon

PDF + papper

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Produktinformation

Språk: Engelska

Framtagen av: Fysikaliska provningsmetoder, SIS/TK 157/AG 01

Internationell titel: Pulps - Preparation of laboratory sheets for the measurement of diffuse blue reflectance factor (ISO 3688:2022, IDT)

Artikelnummer: STD-80041244

Utgåva: 3

Fastställd: 2023-02-22

Antal sidor: 20