IS 30872005AI Search Enabled✦ AI Generated

Particle boards of wood and other lignocellulosic materials (medium density) for general purposes -Specification
2005 Edition

The 2005 edition of IS 3087 outlines the standards for medium density particle boards fabricated from wood and other lignocellulosic materials for general use. It specifies the range of specific gravity, classifications, mechanical and physical properties, testing protocols, dimensional tolerances, and marking norms. This code is vital for producers, quality assurance professionals, and engineers working with particle boards in furniture, partitioning, and building applications.

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Wood and other Lignocellulosic productsCategory
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What This Standard Covers

The 2005 edition of IS 3087 outlines the standards for medium density particle boards fabricated from wood and other lignocellulosic materials for general use. It specifies the range of specific gravity, classifications, mechanical and physical properties, testing protocols, dimensional tolerances, and marking norms. This code is vital for producers, quality assurance professionals, and engineers working with particle boards in furniture, partitioning, and building applications.

Who Uses This Standard

  • Manufacturers of particle boards
  • Engineers responsible for quality assurance
  • Designers and fabricators of furniture
  • Structural and civil engineering professionals
  • Laboratories conducting material testing
  • Architects specifying wood-based components
  • Environmental regulation compliance personnel

Key Topics Covered

Classification and types of medium density particle boards
Requirements for physical and mechanical performance
Standard dimensions and permissible tolerances
Sampling methods and testing procedures
Limits and testing for formaldehyde emissions
Moisture content and water absorption assessments
Swelling behavior due to moisture exposure
Strength measures including modulus of rupture and elasticity
Screw withdrawal strength benchmarks
Marking and labeling standards
Overview of manufacturing processes
Environmental certification (ECO-Mark) criteria
Surface finishing and preparation guidelines
Instructions on lipping and joinery techniques

Table of Contents

1Scope and Fundamental Specifications
2Referenced Standards and Related Specifications
3Terminology and Definitions
4Classification and Types of Particle Boards
5General Requirements and Quality Criteria
6Materials and Manufacturing Guidelines
7Dimensional Standards and Tolerances
8Physical Properties and Performance Characteristics
9Sampling Procedures and Test Specimen Preparation
10Testing Methodologies and Protocols
11Marking and Labeling Requirements
12Optional Environmental (ECO-Mark) Certification Requirements
Annex ASupporting References
Annex BGuidance on Surface Finishing and Joinery

Popular Questions About IS 3087

?How are medium density particle boards classified under IS 3087?

IS 3087:2005 categorizes medium density particle boards based on manufacturing techniques and layering structure as follows:

  • Flat pressed, single layer (FPS)
  • Flat pressed, three-layer or multilayer with grades I (FPT-1) and II (FPT-2)
  • Extrusion pressed, solid (XPS)
  • Extrusion pressed, tubular (XPT)

Medium density boards have a specific gravity between 0.5 and 0.9. The three-layer flat pressed boards feature finer particles with higher resin content on the surface layers and coarser particles with less resin in the core, contributing to improved mechanical strength and density. This classification assists in selecting appropriate boards for applications such as furniture, partitions, and door construction.

?What limits does IS 3087 specify for formaldehyde emissions in particle boards?

According to IS 3087 Clause 9.7, formaldehyde emission levels are classified into two categories:

  • Class E1: Formaldehyde content not exceeding 8 mg per 100 grams of oven-dried board
  • Class E2: Formaldehyde content greater than 8 mg but not exceeding 30 mg per 100 grams

Testing follows the IS 13745 standard (Perforator method), with samples conditioned at 27 ± 2°C and 65 ± 5% relative humidity for six days prior to testing. These emission limits ensure safer indoor air quality, with E1 class boards being low-emission and preferred for sensitive environments.

?What procedures are followed to test physical properties like modulus of rupture and screw withdrawal strength?

Physical properties testing as per IS 3087 involves:

  • Modulus of Rupture (MOR) and Modulus of Elasticity (MOE): Three specimens per lot are prepared according to IS 2380 (Part 4), cutting samples 150 mm from the edges. Testing is conducted per IS 2380 (Part 4), and average and minimum values must meet the thresholds in Table 1.

  • Screw Withdrawal Strength: Three specimens are prepared following IS 2380 (Part 14). Testing is performed as per IS 2380 (Part 14), with average strength required to meet or exceed values in Table 1.

These standardized tests ensure particle boards meet mechanical performance requirements essential for reliable applications.

?What dimensional tolerances are prescribed for particle boards under IS 3087?

IS 3087 specifies the following dimensional tolerances for particle boards:

  • Width: No tolerance allowed; exact width as specified
  • Thickness: ±5% of the nominal thickness
  • Edge Straightness: Maximum deviation of 2 mm per 1000 mm length (0.2%)

Standard board sizes for length include 4800, 3600, 3000, 2700, 2400, 2100, 1800, 1500, 1200, 1000, and 900 mm. Widths commonly range from 1800 mm down to 450 mm. Custom sizes may be agreed upon between manufacturer and purchaser. These tolerances guarantee dimensional uniformity and proper fitment in construction and furniture making.

?What are the marking and labeling requirements for particle boards according to IS 3087?

IS 3087 mandates that each particle board must be clearly marked near any edge with:

  • Manufacturer’s name or trademark
  • Particle board designation including type and formaldehyde emission class
  • Board thickness
  • Date of manufacture
  • ECO-Mark certification details, if applicable

The Bureau of Indian Standards (BIS) Standard Mark may also be applied subject to licensing. This labeling ensures product traceability, quality assurance, and compliance with environmental regulations.

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