ISO 7482-3:2005
(Main)Raw goat skins - Part 3: Guidelines for grading on the basis of defects
Raw goat skins - Part 3: Guidelines for grading on the basis of defects
ISO 7482-2:2005 prescribes guidelines for the classification of raw or cured, trimmed goat skins on the basis of visually apparent defects.
Peaux brutes de caprins — Partie 3: Lignes directrices pour la classification sur la base des défauts
General Information
- Status
- Published
- Publication Date
- 11-Dec-2005
- Technical Committee
- ISO/TC 120/SC 1 - Raw hides and skins, including pickled pelts
- Drafting Committee
- ISO/TC 120/SC 1 - Raw hides and skins, including pickled pelts
- Current Stage
- 9093 - International Standard confirmed
- Start Date
- 11-May-2023
- Completion Date
- 13-Dec-2025
Overview
ISO 7482-3:2005 - Raw goat skins - Part 3: Guidelines for grading on the basis of defects - provides standardized guidance for classifying raw or cured, trimmed goat skins by visually apparent defects. It defines trimming and preservation requirements, groups of defect types, and a four-grade classification (first to fourth) plus rejection criteria to ensure consistent quality assessment across the leather supply chain.
Key topics and technical requirements
- Scope and intent: Applies to raw or cured, trimmed goat skins and supports visual grading prior to tannery processing.
- Trimming requirements: Skins must be presented without head, scrotum, udder, anus or navel; legs cut above knee/hock; short tail; no adhering fat or meat. Bleeding, belly and leg cuts should be centered.
- Accepted preservation methods: drying by hanging in shade, salting, brining, dry-salting and cooling; raw/green skins may also be graded.
- Defect categories: Six groups are defined:
- Health-related (disease marks, tumours, abscesses)
- Identification marks (hot-iron brands, paint, freeze-branding)
- Insect/parasite damage (lice, mange, ticks)
- Wounds and flaying damage (bruises, cuts, holes, corduroy)
- Preservation faults (putrefaction, chemical stains, hair slip)
- Dirt contamination (dung, urine, seeds, sand)
- Grading rules:
- First grade: No central defects, no putrefaction, essentially clean; only limited peripheral defects allowed.
- Second grade: Allows certain defects on shoulder/belly, traces of putrefaction and limited dirt at periphery.
- Third grade: Accepts low/medium concentration of defects in butt (best part); none of the accepted defects may cover more than 25% of total area.
- Fourth grade: Similar to third but defects may cover up to 40% of skin area.
- Rejects: Skins exceeding fourth-grade defect limits or with more than 50% unusable area. Also includes fallen skins, untrimmed/poorly trimmed skins, ground or ball-dried skins, and smoked skins.
- Representation: Tabular and graphical representations summarize location, concentration, depth and surface area limits for each grade.
Applications and users
ISO 7482-3:2005 is used by:
- Tanneries and leather manufacturers for intake quality control and processing decisions
- Hide and skin traders, auction houses and procurement teams for consistent pricing and grading
- Quality inspectors and laboratory personnel to standardize defect assessment
- Supply chain managers and product developers to predict yield and leather grades
Practical benefits include consistent grading, improved communication between suppliers and buyers, reduced disputes, and better raw material valuation.
Related standards
- ISO 7482-1: Descriptions of defects (normative reference)
- ISO 7482-2: Guidelines for grading on the basis of mass and size
Keywords: ISO 7482-3:2005, raw goat skins, goatskins grading, defects classification, trimming, preservation, leather industry, hide quality control.
Frequently Asked Questions
ISO 7482-3:2005 is a standard published by the International Organization for Standardization (ISO). Its full title is "Raw goat skins - Part 3: Guidelines for grading on the basis of defects". This standard covers: ISO 7482-2:2005 prescribes guidelines for the classification of raw or cured, trimmed goat skins on the basis of visually apparent defects.
ISO 7482-2:2005 prescribes guidelines for the classification of raw or cured, trimmed goat skins on the basis of visually apparent defects.
ISO 7482-3:2005 is classified under the following ICS (International Classification for Standards) categories: 59.140.20 - Raw skins, hides and pelts. The ICS classification helps identify the subject area and facilitates finding related standards.
ISO 7482-3:2005 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 7482-3
First edition
2005-12-15
Raw goat skins —
Part 3:
Guidelines for grading on the basis of
defects
Peaux brutes de caprins —
Partie 3: Lignes directrices pour la classification sur la base des défauts
Reference number
©
ISO 2005
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© ISO 2005
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ii © ISO 2005 – All rights reserved
Contents Page
Foreword. iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions. 1
4 Trimming. 2
5 Preservation . 2
6 Grading on the basis of defects . 2
7 Tabular and graphical representation of the classification system . 5
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 7482-3 was prepared by Technical Committee ISO/TC 120, Leather, Subcommittee SC 1, Raw hides and
skins, including pickled pelts.
ISO 7482 consists of the following parts, under the general title Raw goat skins:
Part 1: Descriptions of defects
Part 2: Guidelines for grading on the basis of mass and size
Part 3: Guidelines for grading on the basis of defects
iv © ISO 2005 – All rights reserved
INTERNATIONAL STANDARD ISO 7482-3:2005(E)
Raw goat skins —
Part 3:
Guidelines for grading on the basis of defects
1 Scope
This part of ISO 7482 prescribes guidelines for the classification of raw or cured, trimmed goat skins on the
basis of visually apparent defects.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 7482-1, Raw goat skins — Part 1: Descriptions of defects
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply in addition to those in ISO 7482-1.
3.1
curing
treatment to protect the skin against harmful influences from the time of flaying until it is put in tannery
processing
3.2
defect
general term for any damage, from whatever cause, to raw or cured skins and likely to reduce the quality of
the leather produced from them
3.3
fallen skin
skin from an un-bled or improperly bled carcass
3.4
goat skin
outer covering from an animal of the caprine genus
3.5
latent defects
defects hidden by hair and only discovered after hair removal, e.g. puller or clamp or other mechanical
damage
3.6
pattern
shape or contour of a flayed skin when laid flat, as determined by the position, length and direction of the
ripping cuts made during flaying
3.7
preservation
synonym for curing
3.8
ripping
cutting open of the carcass of an animal along the belly from the neck-end to the tail-end and along the legs
3.9
trimming
operation of giving shape to a skin with its ultimate use in mind
4 Trimming
4.1 The trim of goat skins shall comply with the following requirements. The skin shall be presented:
a) without the head, with the legs cut immediately above the knee or the hock, and with a short tail;
b) without the scrotum, udder, anus or navel;
c) without adhering fat or meat.
4.2 The bleeding-cut, belly-cut and leg-cuts shall be directly in the centre of the throat, belly and legs.
5 Preservation
5.1 For the purposes of this part of ISO 7482, the following preservation methods are accepted:
drying by hanging in the shade;
salting;
brining;
dry-salting;
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