What types of willow wood are specified by IS 6707?

The standard specifies logs from Salix alba and Salix fragilis species (Clause 3.1).

What is the maximum allowed moisture content for the willow logs?

The logs must be seasoned to a moisture content not exceeding 15 percent (Clause 6.1).

What is the minimum size for logs under this standard?

Logs must be at least 1 meter long with a minimum girth of 50 cm at the thinner end (Clause 4).

Are defects like knots and cracks allowed?

The logs must be free from defects like rot, insect attack, splits, and dead knots that would impair their strength and utility for artificial limbs (Clause 5).

IS 6707

: 1972

willow logs for artificial limbs

CurrentSpecializedSpecificationMaterials Science · Timber and Timber Stores

Download PDF BIS Portal Google

This standard specifies the requirements for willow logs, specifically from Salix alba and Salix fragilis species, intended for the manufacture of artificial limbs. It covers material quality, dimensions, moisture content, permissible defects, and marking protocols.

willow logs for artificial limbs

Quick Reference Values

Maximum permissible moisture content15%

Minimum log length1 m

Log length increments10 cm

Minimum log girth (at thinner end)50 cm

Specified willow speciesSalix alba and Salix fragilis

Practical Notes

The specified willow species are chosen for their high strength-to-weight ratio and shock-absorbing properties, which are critical for prosthetic limbs.

Ensuring moisture content is below the 15% limit is crucial for the dimensional stability and longevity of the final product, preventing warping or cracking.

This is a material procurement standard; it does not cover the design or fabrication of the artificial limbs themselves.