Eco Mark Product Category No. 115“Products Using Thinned-out Wood,
Reused/Unused Wood, etc. Version2.7”
Certification Criteria- Applicable ScopeA. Outdoor equipment
a. Civil-engineering and architectural commodities: Small logs, laminated wood,
plywood, etc.
b. Exterior commodities
B. Interior accessories (Indoor material such as floor material, wall material, etc., structural
materials such as sliding window frames, doors, column, beam, groundsill, etc.)
C. Living and cultural commodities (Toys, instruments, sports goods, etc.)
D. Packaging materials (Materials required for maintaining product quality, for example,
boxes for transporting marine products (fish eggs, etc.), boxes for packaging cans andwine, etc.)
E. Charcoal (including bamboo charcoal)F. Activated charcoal (Including humidity adjusting materials, water purifying agents, etc.)
G. Other commercial products (vacuumed sawdust for oil processing, sawdust for portable
toilets, wood pellets, etc.)
H. Soil conditioners (Those prescribed by cabinet ordinance based on Article 11 of the
Improvement of Soil Fertility Law. Applicable products of this Product Category are barkcompost and charcoal(Note 1) Products set with function related product categories of the Eco Mark Program
such as No. 111 “Board Made of Wood or the Like”, No.123 “Building Products Using
Recycled Materials”, No.112 “Paper Stationary Version1.0, No.128 “Commodity Version 1.0”,
No.130 “Furniture Version 1.0”, “Products for Civil Engineering Version 1.0”, etc. areundertaken separately in corresponding product categories and not included in this ProductCategory.
(Note 2) Wood pallets are applicable in Product Category No.121 “Returnable
Containers/Packaging Materials

Established: July 1, 2004
Last revised: December 15, 2022
Expiration date: June 30, 2030

Japan Environment Association
Eco Mark Office

NOTE: This document is a translation of the criteria written in Japanese. In theevent of dispute, the original document should be taken as authoritative.

115 V2 Criteria

Eco Mark Product Category No.115“Products Using Thinned-out Wood, Reused/Unused Wood, etc. Version2.7”
Certification Criteria
Japan Environment Association
Eco Mark Office
1. Purpose of Establishing Criteria
Forest over the world is decreasing, particularly in developing countries. The
portion of world forest, particularly in the tropical zone, which is disappearing every
year equals about 2.5 times the area of the Japanese territory. In comparison withother countries, Japan is rich with forest, which occupies 67% of the territory.
Artificial forest equals in area 41% of the whole forest area, whereas in accumulation
it equals about 57% of the whole forest, exceeding natural forest (including naturalregenerated forest). However, despite our abundant forest reserves, the selfsufficiency of wood in FY2002 was 19.6%. While forests around the world are
decreasing or depleting due to excessive use, forests in Japan are not adequately
applied, which implies that forests are not being appropriately maintained in thiscountry, leading to risks of deterioration in a form opposite to that everywhere elsein the world.
Appropriate forest maintenance is indispensable for sustainable demonstrationof diverse forest functions. Especially, most of the plantation forests in Japan are
still in their developing stages, it is essential to implement thinning to adjust
concentration of trees according to their growth. Thinning is essential for fostering
healthy and productive forests; the procedure not only helps foster good quality wood,
but also makes way for appropriate light to enter the trees and promote growth ofbottom grass, thus preventing topsoil erosion. However, thinning is often not
implemented adequately due to insufficient budget, etc. For this reason, the 5-Yearemergency thinning measures were taken from 2000 to promote immediate andplanned thinning of about 1.5 million hectares of private forests for five years.
Between 2000 and 2002, 300,000 hectares of forests were thinned annually. The
proper use of the thinned wood and sustainable demonstration of the diverse
functions of forests are important tasks in promoting “sustainable forest
management”.
Ninety-three percent of wood industry's waste (mainly from the lumbering
industry) was utilized effectively; however, as much as 5.5 million tons (FY2000) ofwood from dismantled buildings and packaging wood are disposed of as waste, witha reuse rate of 37%. It is important that wood, once uses, should be used again
effectively.

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115 V2 Criteria

Wooden products do not consume much energy when they are manufactured andcontribute to carbon storage and to reducing energy consumption. Effective
utilization of wood, as a material of small environmental load, should be promoted
today when the prevention of global warming has become an internationally crucial
issue. In addition, forest conservation will be effective in terms of CO 2 absorption,
ecosystem conservation, water resource recharge, and life environment conservation,
and also for recreation and other cultural aspects.
It has been scientifically confirmed that wooden products have educational
effects because they look and touch soft and emotional.
However, some products give the fear of negatively affecting people's health with,for example, formaldehyde released indoors from adhesives.
In these circumstances, this category handles wooden products which
incorporate considerations for environmental conservation throughout their entire
life cycle (manufacturing, disposal, and recycling processes) of materials that containor emit hazardous chemicals, while promoting effective use of reused/unused wood.

2. Applicable Scope
A. Outdoor equipment
a. Civil-engineering and architectural commodities: Small logs, laminated wood,
plywood, etc.
b. Exterior commodities
B. Interior accessories (Indoor material such as floor material, wall material, etc.,
structural materials such as sliding window frames, doors, column, beam,
groundsill, etc.)
C. Living and cultural commodities (Toys, instruments, sports goods, etc.)
D. Packaging materials (Materials required for maintaining product quality, forexample, boxes for transporting marine products (fish eggs, etc.), boxes for
packaging cans and wine, etc.)
E. Charcoal (including bamboo charcoal)F. Activated charcoal (Including humidity adjusting materials, water purifying
agents, etc.)
G. Other commercial products (vacuumed sawdust for oil processing, sawdust for
portable toilets, wood pellets, etc.)
H. Soil conditioners (Those prescribed by cabinet ordinance based on Article 11 of
the Improvement of Soil Fertility Law. Applicable products of this ProductCategory are bark compost and charcoal

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115 V2 Criteria(Note 1) Products set with function related product categories of the Eco Mark
Program such as No. 111 “Board Made of Wood or the Like”, No.123 “Building
Products Using Recycled Materials”, No.112 “Paper Stationary Version1.0,
No.128 “Commodity Version 1.0”, No.130 “Furniture Version 1.0”, “Products for
Civil Engineering Version 1.0”, etc. are undertaken separately in corresponding
product categories and not included in this Product Category.
(Note 2) Wood pallets are applicable in Product Category No.121 “Returnable
Containers/Packaging Materials

3. Terminology
Reused/ Unused Indicates the followings: thinned wood, waste wood,
wood

construction waste wood, and less useful wood

* Thinned wood:

Wood

produced

from

work

activities

adjustingtheindividual density of the objective tree type according to thecongested state of foreststand.
* Waste wood:

Used wood (used packaging material, etc.), remaindermaterial generated in wood processing plants (shavings
generated in plywood and lumber plants, etc, low quality
chips not used as raw material for paper, etc.), and wood andwooden materials such as thinned branches, bark, etc.

* Construction

Wood and wooden materials disposed as waste inwaste wood:construction work such as dismantling of buildings,
construction

of

new

buildings,

building

extensions,renovation, and construction related to other work.
* Less useful

Abandoned lumber in the forest, shrubs, tree roots, wood

wood:

obtained from lumber damaged by disease, pests, disasters,
bent or small diameter logs, etc. Also includes bamboo cut
down in bamboo groves for the purpose of maintenance andmanagement in environment preservation. Small diameterlog measuring less than 14 cm in diameter corresponding to“a” or “b” below must be certified as forests sustainably
managed by an independent third party or a publicorganization.
a. Small diameter logs from logs felled from natural forests.
b. Small diameter logs from logs produced by clear cutting,patch logging, and strip logging in plantation forests.

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115 V2 Criteria

Natural forests

Strictly defined as forests which have not experienced
human disturbances, but including forests which areintended for the direction to be natural forests, long after
being influenced by human.

NaturalSimilartonaturalforests,

regenerated

regeneration. They are intended to supply wood and wooden

forests:

products.

Regeneration

forests

supportwith

activities,

naturalfostering

activities, etc are provided.
Plantation

Forests made by planting, breeding, nursing, etc.

forests:
Waste plant fiber Agricultural residue generated in harvesting and the
manufacturing process such as rice hull, and used
packaging material such as jute bag, etc.
Wooden part

Actual wood (including plant fiber)

Adhesives:

Added for adhesive functions required in the manufactureof products. Also includes agents added to bond baseboard
with synthetic resin sheets when implementing overlays,
and to bond different materials together such as fixturesand metals, etc.

Additives

Added to give new characteristics to products or supplement
insufficient properties

RecycleMaterial recycle, not including thermal recycle and others.

Disposable

Products not intended for repeated use in areas where there

products

exists durable products which are repeatedly used with theoriginal material.

Prescription

Components intentionally added with the purpos e ofconstituents

providing particular f unctions to the product.
Impurities w hich are inevitably mixed during
the manufacturing process are excluded.

4. Certification Criteria and Certification Procedure
To show conformance to the individual criteria item, the respective AttachedCertificates shall be submitted.
4-1. Environmental Criteria and Certification Procedure(1) The percentage of reused/unused wood or waste plant fiber as materials for

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115 V2 Criteria

wooden parts shall be 100%. Small diameter logs of less useful wood shall satisfy
the requirements on forest certification defined in Attachment 1 if corresponding
to “a” or “b” in Terminology.
Use of boards listed in No. 111 “Board Made of Wood or the Like version 2” as raw
materials shall be approved[Certification Procedure]
A Certificate on the types of recycled materials used in the product and thosecontent rates shall be submitted. In addition, a raw material certificate issued
by the raw material supplier shall also be submitted. If there are multiple
vendors, a list of the vendors and list of certification of the top 10 vendors interms of volume of material traded shall be submitted.
If using thinned wood as the material, a certificate of origin that includes
information on the place of production, type of tree, and year of planting shallbe submitted with photographs of the forest concerned (showing clearly that theforest stand has been thinned). The trimming percentage and how many times
the forest has been thinned, including the most recent trimming shall also be
indicated if possible.
If using less useful wood, a certificate including the following information shallbe submitted. If small diameter logs, which fall into a. or b. of Terminology areused as the material,, official documents stating that the forest has beencertified as sustainable by a third party shall be submitted.
* Type of forest (natural regenerated or plantation, etc.), place of production,
type of tree; year of tree planting should be added if plantation forest.
* Under what conditions was the wood produced (damaged by disease/pests,
damaged by disaster, bent or narrow trees, etc.). For small diameter log,
indicate logging method and tip end diameter.
If using bamboo as the raw material in less useful wood, certificates indicating
the following information and photographs/maps of the surroundings of thebamboo grove shall be submitted.
* Type of bamboo, place of production, surrounding conditions, and descriptionthat logging is carried out for the purpose of appropriate maintenance andmanagement in environment preservation, as well as management plans andquantity.
For products using the products certified under No.111 “Board Made of Wood or
the Like”, the corresponding product name and certification number can beindicated in the application form instead of submitting the above certificationof compliance to the corresponding criteria.

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115 V2 Criteria(2) Thinned wood as the material shall be harvested in legally appropriate
procedure consistent with the forest laws of timber producing countries or regions.
[Certification Procedure]
A certificate shall be submitted to prove that the timber whose legality has beenverified* in accordance with “Guideline for Verification on Legality andSustainability of Wood and Wood Products” of Forestry Agency has been incustody to be separated by the applicant or the paper manufacturer and is
supplied to the applied products.

At the same time, the applicant or the paper

manufacturer who issues the above certificate shall submit any of the following
certificates:
1) Certificate that the applicant or the paper manufacturer has been assessed
and authenticated by the CoC (Chain of Custody) Certification System;
2) Certificate of the authorized company (that guarantees the association
member’s adequate way of supplying wood and wood products verified withlegality, etc.); and
3) Code of management practice which stipulates the way of custody to manage
wood and wood products verified with legality (the method in the case thatthe timber verified with legality only is handled.

The same applies tohereunder), retention of certificates for a predetermined period, etc.
In the event that Item 2) or 3) above is chosen and the certificate is submitted,
the applicant or the material supplier who issues the above-mentioned
certificates shall publicly announce through its Web site the code ofmanagement practice prescribed by the association concerned in the case of
Item 2) and shall prescribe and publicly announce through its Web site the codeof management practice concerning the scheme to assess and guarantee thesystem for separative management, document management for retention ofcertificates for a predetermined period, etc. in the case of Item 3).
*Confirm the certificate issued by the related company closest in commercial
process, which at least verifies that wood and wood products they supply arewith legality and under separative custody management.
(3) For products attached with portions made of other materials such as fixturesand metallic parts, etc., these portions shall make up less than 30% of the entire
product (weight percentage).

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115 V2 Criteria(Note) The weight percentage means the weight percentage of the product or eachmaterial at the air dried state *1 or at the point of constant weight* under atemperature of 20±2 and humidity of 65±5%.
*1: Indicates leaving in a well-ventilated room for seven days or more.
*2: Change is less than 0.1% when weight is measured every 24 hours.
Condition *1 is not applicable to products made of lumber and logs, except for thewood equivalent to less than 15% of standard governmental dried material
water content percentage inside and outside the country.
[Certification Procedure]
Applicants shall indicate that the total product weight and the percentage ofaccessories attached such as fixtures and metallic portions making up the
product (weight percentage) and certify that these portions are less than 30%of the total product weight. [For example, fixture weight/total product weight{fixture + wooden material (wooden portion+ adhesive + additive)}<30%](4) For products using lumber from dismantled buildings (wood and woodenmaterials disposed in dismantling), lumber subject to preservatives, termicides,
and pesticides shall be differentiated and eliminated. The content of harmful
substances in these products shall meet the requirements for hexavalentchromium and arsenic given in Attached Table 5, which is provide by the detailed
enforcement regulations (December 26, 2002, Environment Ministry Ordinance No.
29) of the Soil Pollution Control Law.
[Certification Procedure]
Documents certifying that wood from dismantled buildings are sorted in use or
not used (work manual, workflow, etc.) shall be submitted. If using wood fromdismantled buildings, results of tests performed by a third party testing centersor public institutions shall be submitted.
(5) For D. Packaging materials (limited to packaging materials for food), E.
Charcoal, F. Activated charcoal, G. Other commercial products (used in burnt
state), and H. Soil conditioners, wood from dismantled buildings shall not be used
for products For F. Activated charcoal, activated charcoal for blowing incinerators
have been excluded from this category.
[Certification Procedure]
Documents certifying that wood from dismantled buildings are sorted in use or
not used (work manual, workflow, etc.) shall be submitted. If using wood fromdismantled buildings, results of tests performed by a third party testing centers

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115 V2 Criteria

or public institutions shall be submitted.
(6) For products using adhesives and additives and products subject to decorative
work, the prescription constituents and weight percentage shall be reported.
Resins made of halogens and organic halogenides shall not be added asprescription constituents.
[Certification Procedure]
Prescription constituents and weight percentage shall be indicated in theattached certificate. A list indicating whether the concerned substances areadded shall also be submitted.
(7) Products shall not use wood preserving agents (wood termicides, preservatives,
pesticides, and fungicides) as prescription constituents. However, products listed
in Attachment 2 for A. Outdoor equipment and B. Interior accessories (indoor
materials) are allowed use of wood preservatives.
The wood preservatives used shall be those approved by Japan Wood Protection
Association.
[Certification Procedure]
A list indicating whether the concerned substances are added shall be
submitted. If the wood preserving agents specifically described in the“Application for Eco Mark Certification, Form 2” are used, documents
indicating the reason for use, that these agents have been certified by the Japan
Wood Protection Association, and that no prohibited substances listed inInterpretation D-8 (5) are used shall be submitted.
(8) For products in B. Interior accessories (indoor materials), C. Living and culturalcommodities using adhesives or additives, no emissions of toluene or xylene shallbe detected at product shipment. “No emissions detected” means less than theminimum limit of determination value measured by the JIS A 1901 “Determinationof the emission of volatile organic compounds and formaldehydes for building
products -- Small chamber method”.
[Certification Procedure]
Results of tests prescribed in JIS A 1901 shall be submitted for corresponding
products or each material, adhesive, and coating. However tests are notrequired for materials and products not added with toluene and xylene asprescription constituents.

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115 V2 Criteria(9) Coatings if used for products shall conform to criteria for heavy metals andheavy metal compounds (Attachment 3, 4-1.(9)) in (4) of “4-1 Environmental
Criteria” of Eco Mark Product Category No. 126 “Paints Version1”.
[Certification Procedure]
Results of tests prescribed in JIS A 1901 shall be submitted for corresponding
products or used wooden materials, adhesives, and coatings. However tests are
not required for materials and products not added with toluene and xylene asprescription constituents.
(10) For products in the B. Interior accessories (indoor materials), C. Living andcultural commodities using adhesives or additives, emissions of formaldehyde fromproducts or each wooden material, adhesive, or coating used shall be of the F****
grade in accordance with the JIS or JAS standard, or falling outside the scope of
regulations by the Ministry of the Land, Infrastructure and Transport. The
products should meet the numerical criteria of a or b below.
a. The amount of formaldehyde emissions measured by JIS A 1460 “Building
boards Determination of formaldehyde emission -- Desiccator method” shall be
below 0.3 mg/l for average value and below 0.4 mg/l for maximum value.
b. The emission rate of formaldehyde measured by JIS A 1901 “Determination of
the emission of volatile organic compounds and formaldehydes for building
products -- Small chamber method” shall be less than 5µg/(m2-h).
Additionally, c and d below shall be approved.
c. For products and materials prescribed in the JAS such as plywood, wood flooring,
construction panels, laminated wood, and single wood laminate, the amount offormaldehyde emissions below the average of 0.3mg/l and below the maximum
value of 0.4mg/l are allowed when measured by the methods prescribed in eachcorresponding JAS (glass desiccator or acryl dedicator method).
d. For adhesives and coatings prescribed in the JIS and JAS, the emission rate offormaldehyde below 5µg/(m²-h) are allowed when measured by the glassdesiccator method prescribed in the corresponding standard and converted by thedesignated method.
[Certification Procedure]
Results of tests prescribed in JIS A 1460 or JIS A 1901 or tests by methods
prescribed in specific JIS or JAS criteria shall be submitted to indicate thatstandard values are met. For materials and products permitted to be labeled
F**** grade in accordance with JIS and JAS, documents certifying this or copies
of such documents can be submitted in place of test results. For materials and9/15

115 V2 Criteria

products authorized as falling outside the scope of regulations by the Ministryof Land, Infrastructure and Transport, documents certifying this or copies ofsuch documents can be submitted in place of test results. For materials andproducts permitted to be labeled as using non-formaldehyde adhesives by JIS,
documents certifying this or copies of such documents can be submitted in placeof test results.
(11) In manufacturing the applied product, related environmental laws andregulations and pollution control agreement (hereinafter referred to as the“Environmental Laws, etc.”) must be followed with respect to air pollution, watercontamination, noise, offensive odor, and emission of hazardous materials in thearea where the plant performing the final manufacturing process is located.
In addition, the state of compliance with the Environmental Laws, etc. for the last
five years from the date of application (whether there is any violation) must bereported. If there is any violation, it is necessary that proper remedies andpreventive measures have been already taken, and the related Environmental
Laws, etc. must thereafter be followed appropriately.
[Certification Procedure]With respect to the compliance with the Environmental Laws, etc. in the area
where the plant performing the final manufacturing process is located, acertificate issued by the representative of the business of manufacturing theapplied product or the manager of the relevant plant (entry or attachment of
the list of names of the Environmental Laws, etc.) must be submitted.
In addition, it is necessary to report whether there is any violation during thelast five years, including a violation subject to administrative punishment oradministrative guidance, and if there is, the following documents in a and b
must be submitted:
a. With respect to the fact of violation, guidance documents fromadministrative agencies (including order of correction and warning) andcopies of written answers (including those reporting causes and results ofcorrection) to such documents (making a series of progress clear);b. Following materials (copies of recording documents, and so on) concerning
the management system for compliance with the Environmental Laws, etc.
in 1)-5):
1) List of the Environmental Laws, etc. related to the area where the plant
is located;
2) Implementation system (organizational chart with entry of roles, etc.);

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115 V2 Criteria

3) Document stipulating retention of recording documents;
4) Recurrence prevention measures (future preventive measures);5) State of implementation based on recurrence prevention measures (resultof checking of the state of compliance, including the result of onsite
inspection).
(12) In manufacturing the commodities, energy saving efforts are made.
[Certification Procedure]
Energy consumed for the production of the product shall be submitted in KJ/m³,
kW/m³, kJ/t, kW/t, kJ/product, kW/product or in kg-C/m³. Energy consumption
shall be calculated from accepting raw materials at the production plant. Brief
description of the production process shall be submitted. Actual energy
consumption data (CO2 emission) shall be submitted at renewing a contract.
(13) Manuals on use shall be prepared and distributed to users of the product.
Manuals shall include the following details:i) Information related to Criteria 4-1. (1)-(10). (Indicate that enquiries can bemade on details.)ii) Product information related to disposal and recycling.
iii) Product information related to disassembly, disposal, and recycling.
[Certification Procedure]
Manuals shall be prepared and submitted. (manuscripts are acceptable)(14) The packaging of the product shall give consideration to resource-saving, easeof recycling, etc. Plastic materials used in a product container and packaging shallnot use plastics containing halogen in the polymer backbone.
[Certification Procedure]
The packaging state at shipment (packaging method, packaging material, etc.)
shall be specifically described. A list indicating whether the concerned
substances are added to containers/packaging shall also be submitted.
(15) Products shall not increase waste production (shall not be disposable types).
[Certification Procedure]
A description that the product is not of the disposal type shall be provided in
the attached certificate.

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115 V2 Criteria

4-2. Quality Criteria and Certification Procedure(1) Quality requirements of JIS, JAS, and other equivalent standards are met. For
other products, standards such as similar JIS shall apply to items for whichmeasuring methods have been set down in the JIS, etc. Soil conditioners shall beof the types prescribed by cabinet ordinance based on Article 11 of the
Improvement of Soil Fertility Law and conforms to the Attachment 4.
(2) Charcoal and formed charcoal shall be about 6,800 kcal/kg in calorific value,
not more than 4% in ash content, not more than 25% in volatiles, and not less than
71% in fixed carbon. However, for charcoals used for humidity control, water
treatment, deodorization, maintaining freshness, and feed stuff, the requirementof calorific value above shall not be applied, but the requirement listed in
Attachment 5 table shall be applied instead.
(3) If standards are prescribed for each purpose of use of activated carbon, theyshall be observed. Powder activated carbon used for drinking water shall conformto the Japan Water Works Association’s K 113 “Powder Activated Carbon for
Drinking Water” standard. Quality control must also be implemented adequately
in the manufacturing stage.
[Certification Procedure]
Test results according to JIS or other standards shall be submitted. For soil
conditioners, labels indicating soil conditioner quality standard shall be
submitted.

5. Product Classification, Indication and Others(1) Products shall be classified by usage and brand name. Classification by size andcolor is not performed.
(2) If an Eco Mark logo is placed on packaging materials with Eco Mark certification,
separate information that the packaging material made of thinned wood (or waste
wood or small-diameter log) is approved as an Eco Mark product shall be added
to apparently indicate that the Eco Mark certification does not refer to thecontents in the package.
(3) In principle, Eco Mark shall be indicated on the product. The Eco Mark
Utilization Contractors who own the Eco Mark products shall also be allowed toindicate the description and the certification number as before.

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115 V2 Criteria(Note for the indication)*For indicating the logo, Eco Mark certification number (eight-digit number) or thename of the licensee using the logo shall be appeared.
* Such expression as “Eco Mark product” can be used following the 2.(2) of the
Guide to Eco Mark Usage.
“Eco Mark product”, “#Eco Mark”, “www.ecomark.jp”, “Eco Mark Certificate”* In accordance with “Environmental Labeling Guidelines” of the Ministry of theEnvironment of Japan, etc., the environmental claims of certified products may
be indicated in association with Eco Mark
(https://www.env.go.jp/policy/hozen/green/ecolabel/guideline/).
*The Guide to Eco Mark Usage shall be followed for any cases not listed above.
(https://www.ecomark.jp/office/guideline/guide/)
Established: July 1, 2004
Revised: October 19, 2006 (6.(3) Version2.1)
Revised: April 13, 2007 (4-2(1) Version2.1)
Revised: August 21, 2008 (4-1(10), 5(9) Version2.3)
Revised: March 1, 2011 (5.(3) Version2.4)
Revised: June 15, 2012 (deletion of 5.(4)(5) Version2.5)
Extension of Expiration date: February 1, 2014
Revised: March 1, 2018 (addition of 4-1.(2) Version2.6)
Extension of Expiration date: January 7, 2019
Revised: April 1, 2019 (5.(3) Mark Indication)
Revised: December 15, 2022 (4-1.(14) Version2.7)
Extension of Expiration date: March 15, 2024
Expiration date: June 30, 2030
The Certification Criteria for the Product Category will be revised when necessary.

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115 V2 Criteria

Attachment 1 Forestry Certification Provided Based on Definition of Terms
Certification- While balancing economical, ecological, and social benefits,criteria

the criteria shall comply with Agenda 21 and Statement of
Principles on Forests, and observe related international
agreements and conventions.
- Including solid requirements, the criteria shall promotesustainable forests.
- Recognized both domestically and internationally, thecriteria shall be recommended as part of the process opened
to participation by ecological, economical, and social
stakeholders.

Certification
system- Certification systems shall have high transparency, maintainnation-wide or international reliability, and can verify
requirements.

Certification body

- With fairness and high reliability, certification organizations
and groups shall be able to verify that requirements are
satisfied,conveytheresults,

and

able

to

executerequirements effectively.

Attachment 2 Application of Ant-resisting Agent, Anti-septic agent, and Insectproofing agent
a. Base (including butt end, tenon, and mortice)b. Column, intermediate column (including butt end and mortice), brace (including
plywood used in place of brace), and ground plate (including furring strip).
Indoor face side of column is to be excluded.

Attachment 3 List of Chemicals Prescribed in 4-1.(9)Substance

Standard Level

Cadmium
Mercury

Total 0.1%

Hexavalent chromium
Lead0.06%

Arsenic

Not to be added as prescription constituent.

Antimony

Not to be added as prescription constituent.

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115 V2 Criteria

Tributyltin

Not to be added as prescription constituent.

Triphenyl tin

Not to be added as prescription constituent.

Attachment 4 Quality of bark compost stipulated in 4-2.(1)Substance
Content

rateof

Organic

Standard Level
substances(actual ≥ 70%

substance)
Carbon-Nitrogen Ratio [C/N ratio]≤ 35

Cation Exchange Capacity [CEC] (Dry matter)≥ 70meq/100g

pH

5.5 - 7.5

Moisture

55 - 65％

Result of seedling experiment

No growth inhabitation andother abnormalities

Entire quantity of Nitrogen [N] (actual substance)≥ 0.5%

Entire quantity of Phosphoric acids [P2O5] (actual ≥ 0.2%
substance)
Entire quantity of Potassium (actual substance)≥ 0.1%

Attachment 5 Quality of Charcoal Prescribed in 4-2.(2)Charcoal for humidity control Carbonized at a temperature of more than 400°C
Charcoal for--water treatment
Charcoal for
deodorization

Degree of refinement shall be more than level 8.
(Charcoal carbonized at a temperature of morethan 600°C and of water content less than 15%)
Charcoal for maintaining the freshness of plants(including mushrooms) shall be of the degree ofCharcoal forrefinement less than level 2. Other charcoals shallmaintaining freshness

be less than level 8. (Charcoal carbonized at atemperature of more than 800°C and of watercontent less than 10%.)

Charcoal for feed stuff--

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