kata pengantar
ISO (Organisasi Internasional untuk Standardisasi) adalah aliansi global badan standar nasional (badan anggota ISO). Pengembangan standar internasional biasanya dilakukan melalui komite teknis ISO. Setiap lembaga anggota yang tertarik pada suatu mata pelajaran yang telah dibentuk komite teknisnya berhak untuk diwakili dalam komite tersebut. Organisasi pemerintah dan non-pemerintah internasional yang bekerja sama dengan ISO juga terlibat dalam pekerjaan ini. ISO bekerja sama dengan Komisi Elektroteknik Internasional (IEC) tentang semua masalah standardisasi elektroteknik.

Prosedur yang digunakan untuk mengembangkan dokumen ini dan yang digunakan untuk pemeliharaan lebih lanjut dijelaskan di Bagian 1 dari Petunjuk ISO/IEC. Secara khusus, perhatikan standar persetujuan berbeda yang diperlukan untuk berbagai jenis dokumen ISO. This document has been drafted in accordance with the editing rules in Part 2 dari Petunjuk ISO/IEC (lihat iso.org/directives).

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ISO 12625-3, prepared by the Technical Committee CEN/TC 172 (Bubur, kertas dan papan) of the European Committee for Standardisation (SEN) in cooperation with the Technical Committee ISO/TC 6 (kertas, papan dan pulp) and Subcommittee SC 2 (Metode pengujian dan spesifikasi kualitas kertas dan papan), Comply with the technical cooperation agreement between ISO and CEN (Perjanjian Wina).

This second. Version cancels and replaces the technically revised first version (ISO 12625-3:2005).

For ISO 12625-3:2005, the following minor changes have been made:

A) The title has been changed; Menambahkan “bulk”;

B) The accuracy data in Annex A has been adjusted according to existing equipment capabilities and calibration procedures;

C) Prepare specimens with more accurate descriptions and reformulate 7.1 Dan 7.4;

D) Edit and update.

ISO 12625 consists of the following parts under the general heading Tissue Paper and household paper products

— Bagian 1: General guidance on articles;

— Bagian 3: Penentuan ketebalan, expansion thickness, apparent bulk density and volume

— Bagian 4: Penentuan kekuatan tarik, tarik saat putus dan penyerapan energi tarik;

— Bagian 5: Penentuan kekuatan tarik basah;

— Bagian 6: Penentuan berat gram;

— Bagian 7: Penentuan sifat optik — Pengukuran luminansi dan kroma (siang hari di luar ruangan) using D65/10°;

— Bagian 8: Waktu dan kapasitas penyerapan air; Basket soaking test method;

— Bagian 9: Determination of blasting strength of the ball;

— Bagian 11: Determination of wet-bulb bursting strength;

— Bagian 12: Determination of tensile strength of perforated lines — calculation of perforating efficiency;

— Bagian 15 Penentuan sifat optik — Measurement of luminance and chroma using a C/2° (indoor daylight) sumber cahaya;

— Bagian 16 Penentuan sifat optik — Kegelapan (dukungan kertas) — metode refleksi difus

ISO 12625-3-2014 Kertas tisu dan produk tisu – Bagian 3: Penentuan ketebalan, expansion thickness and apparent bulk density and volume

memperkenalkan
Thickness is an important characteristic of household paper and household paper products.

In the household paper industry, thickness-related parameters are often measured, such as the diameter of rolls for rolled products (kitchen towels) or stack height for folded products (paper towels). Namun, not only end-use household paper products, but also the basic household paper from which these products are produced are also the subject of trade between companies and countries, which means that there is a real need for consistent thickness measurements that can be applied to household paper products at any stage of their manufacture.

It is well known that the thickness of tissue paper and tissue products depends on the pressure applied to the material at the time of measurement. The household paper industry has used several different loading pressures, pressure foot diameters, and loading speeds. Bagian dari ISO ini 12625 was developed by harmonizing the standards applicable to tissues and tissue products currently in use. It specifies a single loading pressure, foot diameter and loading speed for all thickness measurements of tissue and tissue products.

It is clearly stated that tissue paper and tissue products should be tested for impurities and dents in accordance with ISO 15755.

ISO 287 or ISO 638 should be used to determine moisture content in tissue and household paper products.

1 jangkauan
Bagian dari ISO ini 12625 specifies a test method for determining thickness and expansion thickness, as well as calculating the apparent bulk density and volume of tissue and household paper and tissue paper products at a pressure of 2,0 kPa.

Note that this part of ISO 12625 is intended to provide a consistent test method for determining the thickness and density of tissue paper and tissue products. ISO 534 covers the corresponding test methods for paper and board.

2 Acuan normatif
All or part of the following documents are referred to normatively in this document and are not available for their use. Untuk referensi bertanggal, versi hanya kutipan berlaku. Untuk referensi tidak bertanggal, referensi versi baru (termasuk revisi apa pun) berlaku.

ISO 186, Kertas dan papan — Sampling to determine average quality

ISO 187, Kertas, papan dan pulp — Atmosfer standar untuk pengkondisian dan pengujian serta prosedur untuk memantau atmosfer dan pengkondisian sampel

ISO 12625-1, tisu dan produk kertas rumah tangga – Bagian 1: Panduan umum tentang terminologi

ISO 12625-6, Kertas tisu dan produk tisu – Bagian 6: Penentuan berat gram

ISO 12625-3-2014 Kertas tisu dan produk tisu – Bagian 3: Penentuan ketebalan, expansion thickness and apparent bulk density and volume

3 Istilah dan Definisi
Untuk keperluan dokumen ini, the terms and definitions set forth in ISO 12625-1 dan di bawah berlaku.

3.1 Thickness of single layer

The distance between the two main surfaces of a single layer of tissue paper measured under static load applied as specified in this part of ISO 12625

Catatan 1: A tissue “lapisan” is an unlaminated tissue, like tissue made directly from a toilet paper mechanism.

3.2 Sheet thickness

The distance between the two main surfaces of a single paper towel product measured under the applied static load specified in this part of ISO 12625

Catatan 1: Tissue “lembaran” are laminated or unlaminated tissue, as present in finished paper towel products.

3.3 Ketebalan ekspansi

The thickness of a single sheet of tissue paper or tissue product, dihitung dari ketebalan beberapa lembar kertas yang ditumpangkan, is measured under the applied static load specified in this part of ISO 12625

3.4 Kepadatan pengepakan terlihat jelas

The quality of tissue paper or tissue product per unit volume, calculated according to its gram weight and expanded thickness

Catatan 1: Apparent packing density is expressed in grams per cubic centimeter.

3.5 Dalam jumlah besar

Apparent specific volume

Reciprocal density

Catatan 1: Volume is expressed in cubic centimeters per gram.

3.6G

The mass per unit area of tissue paper or tissue paper products as determined by the procedure in ISO 12625-6

Catatan 1 Entry: The gram weight of the entry is expressed in grams per square meter (g/m 2).

Hanya bagian informasi standar yang bersifat publik. Untuk melihat konten selengkapnya, Anda perlu membeli standar melalui saluran resmi.