A requirement and a test method for assessing the strength of underfoot straps of gaiters are also included.

This Standard is applicable to gaiters which are to be used in conjunction with safety footwear with a metallic toecap complying with JIS T 8101, because gaiters alone offer only partial protection against chain-saw cutting.

This Standard is not applicable to gaiters intended for use in situations where there is a significant risk of tripping such as tree climbing or in forests.

NOTE: The International Standard corresponding to this Standard and the symbol of degree of correspondence are as follows.

ISO 11393-5 : 2001 Protective clothing for users of hand-held chain-saws -Part 5: Test methods and performance requirements for protective gaiters (MOD)

In addition, symbols, which denote the degree of correspondence in the contents between the relevant International Standard and JIS, are IDT (identical), MOD (modified), and NEQ (not equivalent) according to ISO/IEC Guide 21-1.

NOTE: The International Standard corresponding to this Standard and the symbol of degree of correspondence are as follows.

ISO 11393-4 : 2003 Protective clothing for users of hand-held chainsaws—Part 4: Test methods and performance requirements for protective gloves (MOD)

In addition, symbols, which denote the degree of correspondence in the contents between the relevant International Standard and JIS, are IDT (identical), MOD (modified), and NEQ (not equivalent) according to ISO/IEC Guide 21-1.

NOTE: The International Standard corresponding to this Standard and the symbol of degree of correspondence are as follows.

ISO 11393-6 : 2007 Protective clothing for users of hand-held chain-saws – Part 6: Test methods and performance requirements for upper body protectors (MOD)

In addition, symbols, which denote the degree of correspondence in the contents between the relevant International Standard and JIS, are IDT (identical), MOD (modified), and NEQ (not equivalent) according to ISO/lEC Guide 21-1.

Symbols included in this Standard are for controls and displays specific to manual portable forestry machinery such as chain-saws and brush-saws.

NOTE: The International Standard corresponding to this Standard and the symbol of degree of correspondence are as follows:

ISO 3767-5: 1992 Tractors, machinery for agriculture and forestry, powered lawn and garden equipment-Symbols for operator controls and other displays-Part 5: Symbols for manual portable forestry machinery and Amendment 1: 2001 (IDT)

The symbols which denote the degree of correspondence in the contents between the relevant International Standard and JIS are IDT (identical), MOD (modified), and NEQ (not equivalent) according to ISO/ lEC Guide 21-1.

These test procedures create a reproducible replication of the stress conditions experienced by the saw chain and guide bar during sawing. The test shows the capacity of the lubricant for reducing the wear between friction partners.

This enables the manufacturers of chain saws to include specifications for recommended saw chain lubrication oils in the owner's manual.

The test rig is based on a design produced by the Swedish test commission Svensk Maskinprovning (SMP). The test procedures also take into account the long-term practical experience of the Kuratorium für Waldarbeit und Forsttechnik e.V (KWF) in testing bio-degradable chain lubrication oils.