ISO 5350-1-2006 PDF

Full title and description

ISO 5350-1:2006 — Pulps — Estimation of dirt and shives — Part 1: Inspection of laboratory sheets by transmitted light. This International Standard specifies a visual inspection method using transmitted light to estimate the visible dirt and shives in laboratory sheets prepared from pulp, primarily for pulps not manufactured in sheet form.

Abstract

ISO 5350-1:2006 defines a procedure for estimating, by transmitted‑light inspection, the quantity and appearance of visible dirt particles and shives in laboratory sheets prepared from pulp. It is, in principle, applicable to all kinds of pulp but is mainly intended for pulps not produced in sheet form. The standard may also be applied to mill‑sheeted pulp when the sheets are of high grammage or very opaque (cases where ISO 5350‑2:2006 would not be applicable). The procedure is not intended for recycled pulp.

General information

• Status: Published (confirmed as current at review stage).
• Publication date: 2006‑08 (third edition, published August 2006).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 85.040 (Pulp, paper and board).
• Edition / version: Edition 3 (2006).
• Number of pages: 12 (third edition—ISO bibliographic data).

Key bibliographic and lifecycle information (status, edition, publication date and page count) is drawn from the ISO bibliographic record for ISO 5350‑1:2006.

Scope

This part of ISO 5350 specifies a transmitted‑light inspection method to estimate visible dirt and shives in laboratory sheets prepared from pulp. It is intended principally for pulps that are not manufactured in sheet form but can be applied to mill‑sheeted pulp when those sheets have a high grammage or are too opaque for the criteria of ISO 5350‑2:2006. The method excludes recycled pulp and is not intended for pulps or sheet types that prevent reliable identification or counting of minimum‑size specks under transmitted light.

Key topics and requirements

• Definition and visual classification of dirt particles and shives as seen in transmitted light inspection of laboratory sheets.
• Preparation and conditioning of laboratory sheets from pulp samples for inspection.
• Inspection procedure using transmitted light, including counting and sizing criteria for visible specks (minimum size/contrast requirements as specified in the standard).
• Applicability limits (not intended for recycled pulp; guidance on when to use Part 1 vs Part 2 for mill sheets with high grammage or opacity).
• Reporting and expression of results for quality control and comparative testing.

Typical use and users

Primary users are pulp and paper laboratories, pulp manufacturers, mill quality control teams, research and development groups working on pulp quality, and standards organizations. The standard is used for routine quality assessment, comparative testing between batches or suppliers, and for documentation of visible contamination (dirt) and shive content in laboratory‑prepared pulp sheets.

Related standards

ISO 5350 is a multi‑part series. The principal related document is ISO 5350‑2:2006 — Pulps — Estimation of dirt and shives — Part 2: Inspection of mill sheeted pulp by transmitted light (which covers inspection of pulp manufactured in sheets and indicates when Part 1 should be applied). Earlier withdrawn editions of Part 1 (for example ISO 5350‑1:1998 and prior) were superseded by the 2006 edition.

Keywords

pulps, pulp quality, dirt estimation, shives, laboratory sheets, transmitted light inspection, ISO 5350, quality control, pulp testing

FAQ

Q: What is this standard?

A: ISO 5350‑1:2006 is an International Standard that specifies a transmitted‑light inspection method for estimating visible dirt and shives in laboratory sheets prepared from pulp.

Q: What does it cover?

A: It covers sample preparation (laboratory sheets), inspection by transmitted light, criteria for counting and sizing visible specks, reporting of results, and applicability limits (not intended for recycled pulp; guidance on when to use Part 1 versus Part 2 for mill sheets).

Q: Who typically uses it?

A: Pulp and paper laboratories, pulp manufacturers, mill quality control and R&D staff, and others needing standardized assessment of visible contamination and shive content in pulp samples.

Q: Is it current or superseded?

A: The 2006 third edition is the current published edition of ISO 5350‑1; earlier editions (for example the 1998 edition) were withdrawn and replaced by the 2006 edition. The ISO bibliographic record shows the 2006 edition as the active edition.

Q: Is it part of a series?

A: Yes — ISO 5350 is a multipart series. Part 1 (this document) addresses laboratory sheets by transmitted light; Part 2 (ISO 5350‑2:2006) addresses inspection of mill‑sheeted pulp by transmitted light and gives guidance on which part applies in specific cases.

Q: What are the key keywords?

A: pulps; dirt; shives; laboratory sheets; transmitted light; inspection; estimation; pulp quality; ISO 5350.