CREME Webinar on "Carbon Footprint of Steel Products"

ISO 20915 standard application in Japan

Toshio ISOHARA
Head, Life Cycle Assessment Working Group.
The Japan Iron and Steel Federation
November 29, 2021

ⓒ2021 The Japan Iron and Steel Federation. All rights reserved

1

Contents
1. Overview of JISF and the three "Eco" activities

2. Lifecycle of steel products
3. ISO 20915 and JIS Q 20915 standards
4. LCI data collection and dataset release

5. Product Category Rule and Ecoleaf EPD for steel products
6. LCA promotion by JISF
ⓒ2021 The Japan Iron and Steel Federation. All rights reserved21. Overview of JISF and the three "Eco" activities

2. Lifecycle of steel products
3. ISO 20915 and JIS Q 20915 standards
4. LCI data collection and dataset release

5. Product Category Rule and Ecoleaf EPD for steel products
6. LCA promotion by JISF
ⓒ2021 The Japan Iron and Steel Federation. All rights reserved3

Overview of The Japan Iron and Steel Federation

History

JISF'sMissionMembers- Established in 1948
- Reorganized through consolidation with the Kozai Cluband the Japan Iron & Steel Exporters' Association

JISF Headquarters, Tokyo

Promoting production, distribution, consumption and tradeof steel products, thereby contributing to the developmentof the Japanese economy and the improvement of society.

52 iron and steel producers
57 distributers engaged in steel processing and sales
6 organizationsⓒ2021 The Japan Iron and Steel Federation. All rights reserved

4

Japanese steel industry outline
Total sales
19 trillion yen (168 bil USD )Employees
220,000 (2018)
Contributes to industries including machinery, automobiles, metal processing, and electronics.
Exports of 4% of Japan (2019), contributing to the GDP.
Exports from Japan
Year 1990
41.4 trillion yen

Data: Customs Statistics

Year 2005
65.6 trillion yen

201976.9 trillion yen

Japanese steel industry (2018)1

Automobile

17.8％

Automobile

15.1%

Automobile

15.6％

Total sales
Employees

2Businessmachine

7.2％

Semiconductors,
Electronic
components

6.7％

Semiconductors,
Electronic
components

5.2%

3

Semiconductors,
Electronic
components

4.7%

Iron and steel

4.6%

Automobile parts

4.7%.

4

Video
equipment

4.5%

Automobile parts

4.3%

Iron and steel

4.0％

5

Iron and steel

4.4%

Scientific Optics
Instruments

3.8%

Motor

3.5%

6

ScientificopticsEquipment

4.0％

Motor

3.3%

Semiconductors,
Manufacturing
equipment

3.2％

7

Automobile
parts

3.8%

Organic
compound2.9%

Plastic

3.2%

8

Motor

2.7%

Video equipment

2.7%

Scientific Optics
Instruments

2.8%

9

Audio
equipment

2.3%

Plastic

2.6%

Organic
compound

2.5%

10

Tele
communications
equipment

2.1%

Electric circuitand otherequipment

2.6%

Electric circuitand otherequipment

2.4%

JPY 19 T (USD 170 B)
220,000

Steel Products Tradings (2016)
Sales
JPY 24 T
Employees
80,000Machineries
JPY 41 T, 1,160,000
Automobiles
JPY 62 T, 920,000
Manufacturing equipment
Electronic components
Data: Ministry of Economy, Trade and Industry (METI)a Roadmap for Promoting Transition Finance in the Economy and Industry Sectorⓒ2021 The Japan Iron and Steel Federation. All rights reserved

5

CO2 emissions in Japan in 2019
Iron is abundant on the earth, low environmental impact, economical in production and easy in recycling,
resulting in wide and various use in society.
As a result, iron and steel industry accounts for 14% of CO2 emissions in Japan.

Non-energyrelated CO2
7%

Energy Industry

8%

Transportation
18%

Agriculture,
Forestry, Fishery,
Mining, andConstruction
2%

Iron and Steel
14%

Manufacturing
Total CO2 emissions Chemical
33%
Approx. 1.1 billion tons 5%
Machinery
4%

Residential
15%

Miscellaneous
Manufacturing Industry
5%

Commercial
Industry17%ⓒ2021 The Japan Iron and Steel Federation. All rights reserved

Ceramic, Stone, and Clay
Products
3%
Pulp, Paper, and Paper
Products2%

Data: Green House Gas Inventory Office of Japan

6

JISF’s activities for climate change
For contribution to low carbon society, Japanese steel industry set up 3 ECOs to address climate change.

Eco process
Energy saving and low
carbon steel production

Eco Product
Energy saving and highperformance steel
products in use

Eco Solution
Global transfer of Eco
process technologies

Innovative technologies
R&D of breakthrough low carbon steel making technologiesⓒ2021 The Japan Iron and Steel Federation. All rights reserved71. Overview of JISF and the three "Eco" activities

2. Lifecycle of steel products
3. ISO 20915 and JIS Q 20915 standards
4. LCI data collection and dataset release

5. Product Category Rule and Ecoleaf EPD for steel products
6. LCA promotion by JISF
ⓒ2021 The Japan Iron and Steel Federation. All rights reserved

8Circulation of steel: production and recycling
Iron ore is reduced with coal to produce steel, emitting CO2.
Once reduced, steel maintains its property even after recycling.

CO2
Fe2O3

Fe

Fe

Fe

Fe

Fe

iron
ore

BF

BOF

steel
products

final
products

scrap

coal

C

EAF

Fe

ⓒ2021 The Japan Iron and Steel Federation. All rights reserved

Nippon Steel Corporation

9Life Cycle Assessment
A methodology to assess the product emissions and environmental impact in life cycle total
LCA is a method
to assess the emissions and environmental
impacts of a product over its life cycle.

Lifecycle of SteelLCA considers
all phases of a product life cycle:
mining of raw materials, transportation,
production, manufacturing,use, waste disposal, and recyclingof the product.
LCA is used
to avoid shifting the environmental burden
between life cycle phasesfrom one impact category to anotherworldsteelⓒ2021 The Japan Iron and Steel Federation. All rights reserved

10Open loop and closed loop recycling
Most of the material is open loop recycling material, degrading its property.
Steel is a closed loop recycling material, fully substitutional to the natural resources.

Nippon Steel Corporationⓒ2021 The Japan Iron and Steel Federation. All rights reserved11Removal of impurities (alloy elements) in recycling
Most impurities in steel can be removed by oxidization since iron is less oxidized than such impurities.
Cupper or nickel can be magnetically separated before remelting of steel scrap.
Hiraki, Xin, Nakajima, Matsubae, Nakamura and Nagasaka (2012)

Gas
phase

Ce

Slag
phase

Ti

Cr

Mg

removable elements
Ca

Mg
Mn
V

Ni

Metal
phase

Si

Ca

B
Nb

Zn

Zn

Zn

Pb

Mg
Ca

Al
Ce

Co
Sn

Cu
Mo

Fe

B

Ti
V

Fe

Co

Ce

Mn
trappedelements
Mn
V
Cu
Cu

B

Fe

Fe

Co

Pb
Si

Nb

B

Cr

Ni

Sn

Al

Mo

Al

Ce
Ti

Pb
Nb

Si

Cr

Ni

Sn

Mg

ⓒ2021 The Japan Iron and Steel Federation. All rights reserved

Mo

Co

Pb
Si
V
Cr

Nb
Cu

Ni

Sn

Al

Mn
Mo

Ti
12

Circular steel: Steel production and closed loop recycling in the world
Steel is recycled with no change in the inherent properties of the basic steel material
and recognized as closed-loop recycling material.

DRI 0.1Bt
Loss 0.03Bt
Secondary production
Primary production
from scrap
from natural resources
0.63 Bt
1.35 Bt

2018
globalSteel Stock

32.4BtJISF
Worldsteel: World Steel in Figures 2019
Bureau of International Recycling:
World Steel Recycling in Figures 2014-2018
Steel Recycling Researchⓒ2021 The Japan Iron and Steel Federation. All rights reserved

13End-of-Life Scenarios of building structural frame
Most of the building material are downcycled or landfilled but steel is recycled.

SteelConstruction.info, https://www.steelconstruction.info/File:B_Fig10_2013.png#filelinksⓒ2021 The Japan Iron and Steel Federation. All rights reserved

14Life Cycle Thinking
Life cycle thinking is very important. Steel is often the best choice thinking of the whole life cycle.

Nippon Steel Corporationⓒ2021 The Japan Iron and Steel Federation. All rights reserved151. Overview of JISF and the three "Eco" activities

2. Lifecycle of steel products
3. ISO 20915 and JIS Q 20915 standards
4. LCI data collection and dataset release

5. Product Category Rule and Ecoleaf EPD for steel products
6. LCA promotion by JISF
ⓒ2021 The Japan Iron and Steel Federation. All rights reserved

16Life Cycle Inventory (LCI) of Steel Product, worldsteel methodology
LCI is the life cycle emissions intensity of a product, the sum of emissions in every phase of life cycle.
worldsteel developed a methodology to calculate the closed loop recycling potential of steel products.

Life cycle inventory (LCI)
of a steel product

Life Cycle of Steel

Nippon Steel Corporationworldsteelⓒ2021 The Japan Iron and Steel Federation. All rights reserved

17

ISO 20915 standard
ISO 20915:2018 standard describes the LCI calculation methodology
for steel products including recycling, first in the material products.

worldsteel
ISO, worldsteel
https://www.iso.org/standard/69447.htmlⓒ2021 The Japan Iron and Steel Federation. All rights reserved

18

Multiple recycling (e.g. 3rd cycle)
Primary production
from natural resources

CO2
emission

1.00+

Secondary productions
from scrap recycling

0.20+ 0.16=

Steelproduction

1.00

+

0.81

+

0.55

0.65
Nippon Steel Corporation

CO2 emissions =1.0 (primary production), 0.25 (secondary production)
R (scrap recovery rate) = 0.9, Y (recycling yield) = 0.9ⓒ2021 The Japan Iron and Steel Federation. All rights reserved

19

CO2 emissions in multiple recycling
CO2 emission in life cycle average converges to a value in multiple recycling.

1.0

Primary steel
emissionsXpr (=1)
Recycling Rate = 0.9
Yield in steelmaking = 0.9

CO2 emission / Xpr

0.9

0.8
0.7
0.6
0.5
0.4

Secondary steel
emissions
Xre (=0.25)

0.3
0.2
0.1
0.0
1

2

3

4

5

6

7

8

9

10

Life cycleⓒ2021 The Japan Iron and Steel Federation. All rights reserved

11

12

13

14

Nippon Steel Corporation

20

CO2 emissions in multiple recycling
In closed loop recycling, there is no difference in primary and recycled steel products.
1.0

1.0

Calculation with recycling
0.9

0.8

0.8

CO2 emissions in life cycle

CO2 emissions in production

Conventional calculation
0.9

0.7
0.6
0.5
0.4
0.3

0.7
0.6
0.5
0.4
0.3

0.2

0.2

0.1

0.1

0.0

0.0
Primary
1
Steel

Recycled2
Steel

Recycled3
Steel

Recycled
4
Steel

Recycled
5
steel

1
Steel

Life cycle

2
Steel

3
Steel

4
Steel

5 …
RecycleSteelLife cycle
Nippon Steel Corporationⓒ2021 The Japan Iron and Steel Federation. All rights reserved

21

LCI calculation methodology for steel products in ISO 20915 standard
Case of no scrap use

net emissions
including scrap
recycling

emissionsin production (A)

＝

gross
scrap
recyclingeffectscrap
LCI
loss inemissionsin recycling recycling
process
process

scrap
recycling
potential(B)

net scrap recycling effectloss inscrap
recoveryⓒ2021 The Japan Iron and Steel Federation. All rights reserved

22

LCI calculation methodology for steel products in ISO 20915 standard
Case of scrap use
net emissions
including scrap
recycling(A + B1 + B2)

emissionsin production (A)

gross
scrap
recyclingeffect

＝
scrap
LCI

loss inemissionsin recycling recycling
process
process

scrap
recycling
potential(B2)

net scrap recycling potential
scrap input in production (B1)loss inscrap
recoveryⓒ2021 The Japan Iron and Steel Federation. All rights reserved

23

LCI calculation methodology for steel products in ISO 20915 standard
LCIs of primary steel and secondary steel are different in production phases
but equal to each other in life cycle including recycling.

primary
steel secondary
steel

B1
B1
A+B1+B2
AA

B2ⓒ2021 The Japan Iron and Steel Federation. All rights reserved

24JIS Q 20915 Application
ISO 20915 standard is mirrored to the Japanese Industrial Standard as JIS Q 20915.
Press release by JISF on Jun 2019•

We are pleased to announce that the JIS standard for calculating the life cycle inventory ofsteel products has been approved and published as JIS Q 20915 in the Official Gazette issued
today, June 20 (Thursday). The draft of this standard, prepared by the Japan Iron and SteelFederation, was submitted to the Ministry of Economy, Trade and Industry (METI) in October oflast year, and was accepted.

•

This standard is an epoch-making JIS standard that specifically shows a method for calculating
the lifecycle environmental impact of steel products, taking into account the "effect of recycling"in accordance with the characteristics of closed-loop recycling of steel products (recycling inwhich steel products are recycled as many times as necessary into various new products). It is
positioned as the domestic version of ISO 20915 (Life Cycle Inventory Calculation Methodology
for Steel Products)* issued in November last year.

•

The Japan Iron and Steel Federation (JISF) has been promoting the message that "Steel isactually light. The JIS standard is a new version of the ISO 20915 (Life Cycle Inventory
Calculation Methodology for Steel Products). The new JIS standard provides a method toquantitatively evaluate the environmental performance of a product throughout its life cycle,
including recycling. Using this method, it can be shown that the environmental impact of
products such as iron, which has excellent recyclability, is low. If this method becomes
established as a standard concept for users, including end consumers, to select products, it will
be an effective tool to promote a recycling-oriented society.
ⓒ2021 The Japan Iron and Steel Federation. All rights reserved

JISF

25

1. Overview of JISF and the three "Eco" activities

2. Lifecycle of steel products
3. ISO 20915 and JIS Q 20915 standards
4. LCI data collection and dataset release

5. Product Category Rule and Ecoleaf EPD for steel products
6. LCA promotion by JISF
ⓒ2021 The Japan Iron and Steel Federation. All rights reserved

26

LCI data collection and release of the datasets
According to ISO 20915/JIS Q 20915, the LCI datasets of Japan average are released by JISF.
System Boundary in This LCI Study

Datasets of productsNo

Product Name

Product Description

1

Hot rolled coil

Steel sheet rolled on a hot-strip mill to a thickness of 1.2 to 25.4mm. Width ranges from600mm to 2,300mm.

2

Pickled hot rolled coilHot-rolled steel from which the iron oxides present at the surface have been removed in a
pickling process.

3

Cold rolled coil

Pickled steel sheet rolled thin at room temperature.

4

Finished cold rolled coil Produced by annealing process from cold-rolled steel sheet. Crystallization is controlled,
and formability is improved.

5

6Electrogalvanized steel Surface-treated steel sheet with superior corrosion resistance by plating the surface withzinc.
Obtained by electro plating.
Hot-dip galvanized steel Plated steel sheet manufactured by immersion in hot-dip zinc.

7

Tin-free (ECCS)

8

Tinplate

Also known as Electrolytic chrome coated steel (ECCS). Obtained by electroplating a thinfinished cold-rolled coil with a thin layer of chrome.
Good adhesion to paint, film, etc.
Used in the same way as tinplate steel sheet.
Tin-plated steel sheet. Corrosion-resistant and excellent in workability.

9

Organic coated

Coated steel sheet with added functions such as scratch resistance and stain resistance.

10

Plate

Hot-rolled steel plate with a thickness of 6 mm or more.

11

UO pipe

Large-diameter pipe manufactured by pressing and welding thick plates

12

Welded pipe

Small- to medium-diameter pipes made by forming steel plates into a cylindrical shape
and welding them together.

13

Sections

A steel material with a variety of cross-sectional shapes to suit different purposes.
Includes H-beams, angle steels, I-beams

14

Steel Bar

Steel in the form of a bar. Steel bars are used as reinforcing bars at construction sites andas structural materials for machinery, ships, etc.

15

Wire rod

Steel material formed into a wire shape by hot rolling with a cross-sectional diameter ofabout 5 mm to 50 mm.

16

Engineering steel(Tool steel)

Steel that has characteristics such as hardness, strength, tenacity, abrasion resistance,heat resistance, and corrosion resistance by adding alloying elements.

Illustration of LCI of steel productsⓒ2021 The Japan Iron and Steel Federation. All rights reserved

Data: JISF

27

Life cycle inventory （CO2） of steel products (Japan ave.)
Products

Cradle to Gate
including recycling

Cradle to Gate

Scrap recycling effectburden for
credit for
scrap
scrap
recycling
recycling
B1
B2

kg-CO2/kg-productFiscal 2018, Japan

A+B1+B2A

Hot rolled coil

660

1,917

36

-1,293

Pickled rolled coil

708

1,964

37

-1,293

Cold rolled coil

775

2,030

38

-1,293Finished cold rolled coil

904

2,160

38

-1,293Hot dip galva

1,064

2,318

39

-1,293

electrogalva

1,058

2,312

39

-1,293

Tinplate

1,222

2,280

38

-1,293

Organic coated

1,344

2,596

41

-1,293Tin-free

1,027

2,282

38

-1,293

Plate

857

2,110

40

-1,293

Aichi Steel
Itoh Iron & SteelOsaka Steel
Kyoei SteelGodo Steel
Kobe SteelSanyo Special SteelJFE Bars & Shapes
JFE SteelShimizu Steel
Nippon Steel
Daido SteelTokyo Kohtetsu
Tokyo Tekko
Topy Industries
Nissin SteelUO pipe

1,051

2,303

41

-1,293site: 26

Welded pipe

1,065

2,318

41

-1,293process: 169

Section

925

1,618

549

-1,293

Product: 16

Wire & rod

748

2,003

37

-1,293

recovery rate ＝93.1%

Rebar

793

1,541

505

-1,293Special steel

1,222

1,798

717

-1,293ⓒ2021 The Japan Iron and Steel Federation. All rights reserved

Japan Iron and Steel Federation

28

GWP of steel product including recycling
GWP of steel product including recycling is far less than those without recycling.
Global warming potential of
hot-dip galvanized steel sheet (world average)
by-product

100

GWP
[cradle to gate = 100]80
60 cradleto
40 gate20

upstream
gate
to
gate

life cycle

0-20

recycling-40
worldsteel, Life cycle inventory study, May 2018, P23ⓒ2021 The Japan Iron and Steel Federation. All rights reserved

29

LCA in steel and reinforced concrete bridges
LCI and LCA decreases including recycling in steel bridge using plate (mainly BF steel).
LCA in steel bridge

cradleto-gatecradle-to-gate
including recycling
Plate

Rebar

LCI [t-CO2/t-steel]

LCI [t-CO2/t-steel]

LCI of plate and rebar

日本鋼構造協会: 建設分野における鋼構造物のＬＣＡ検討, (2014), 9

Design &Demolition
MaintenanceConstruction& Recovery

Life Cycle(44 years)

日本鉄鋼連盟 建設環境研究会: 鉄鋼製品のリサイクリング効果を考慮したＬＣＡ手法及びシミュレーション事例の紹介ⓒ2021 The Japan Iron and Steel Federation. All rights reserved

30

LCA of buildings
Office building designs of steel and reinforced concrete structures are compared including or not including
recycling.

Steel structure building

Reinforced concrete structure building
出典︓⽇本鉄鋼連盟建設環境研究会報告書「鋼構造建築物のLCA試算に向けた検討」2017.3ⓒ2021 The Japan Iron and Steel Federation. All rights reserved

31

LCA of buildings
Office building designs of steel (S) and reinforced concrete (RC) structures are compared including or notincluding recycling. RC/S is 1.24 for C to G, and 1.26 for C to G including recycling.
CO2 emissions(cradle-to-gate)
分類

No.

原単位

材料

（kg-CO2/kg）

CO2 emissions(cradle-to-gate including recycling)

S造
①（kg）
②（kg-CO2）
3,827,380
499,223RC造③（kg）④（kg-CO2）
8,947,090
1,167,012

コンクリート1 普通ｺﾝｸﾘｰﾄ(ｾﾒﾝﾄ+骨材)*

0.13

鋼材

2 棒鋼（鉄筋）1.54

130,330

200,839651,260

1,003,592

3 線材（ボルト）2.00

27,70955,5010

4 線材（仕上用）

2.00

2,349

4,705

1,782

5 形鋼（躯体）

1.62

479,189775,328006 形鋼（仕上用）

1.62

2,104

3,404

2,104

3,404

7 鋼管（躯体）

2.30

225,287

518,83600

8 鋼管（回転圧入杭64m）

2.30

446,900

1,029,211

1,031,200

2,374,854

その他

分類

No.

原単位

材料

（kg-CO2/kg）

S造
①（kg）
②（kg-CO2）
3,827,380
478,423RC造③（kg）④（kg-CO2）
8,947,090
1,118,386

コンクリート1 普通ｺﾝｸﾘｰﾄ(ｾﾒﾝﾄ+骨材)*

0.13

鋼材

2 棒鋼（鉄筋）0.75

130,330

98,138651,26003 線材（ボルト）

0.75

27,70920,726

0

0

3,569

4 線材（仕上用）

0.75

2,349

1,757

1,782

1,333

5 形鋼（躯体）

0.87

479,189

418,811006 形鋼（仕上用）

0.87

2,104

1,839

2,104

1,839

7 鋼管（躯体）

1.05

225,287

236,77700

8 鋼管（回転圧入杭64m）

1.05

446,900

469,692

1,031,200

1,083,791

490,399

9 鋼板（躯体）

2.11

169,870

358,426009 鋼板（躯体）

0.86

169,870

145,57900

10 鋼板（普通型枠）

2.11

32,19467,929260,775

550,235

10 鋼板（普通型枠）

0.86

32,194

27,590260,775

223,484

11 鋼板（鉄骨階段）

2.11

40,27584,9800011 鋼板（鉄骨階段）

0.86

40,27534,51600

12 鋼板（デッキプレート）

2.32

80,083

185,6320012 鋼板（デッキプレート）

1.06

80,08385,2080013 鋼板（仕上用、手摺、吊材）

2.32

52,471

121,628

53,414

123,81413 鋼板（仕上用、手摺、吊材）

1.06

52,471

55,82953,41456,832

14 めっき鋼板（LGS,他）

2.32

35,372

82,063

17,471

40,53314 めっき鋼板（LGS,他）

1.06

35,372

37,636

17,471

18,58915 グラスウール（100t）

2.77

4,288

11,878

4,270

11,82815 グラスウール（100t）

2.77

4,288

11,878

4,270

11,82816 ガラス繊維

2.77

2,853

7,903

2,841

7,870

16 ガラス繊維

2.77

2,853

7,903

2,841

7,870

17 アスファルト

0.12

105,870

12,704

105,870

12,70417 アスファルト

0.12

105,870

12,704

105,870

12,70418 大型タイル

2.19

26,01356,96825,23555,26518 大型タイル

2.19

26,01356,96825,23555,26519 接着剤

2.33

0

0

176

410

19 接着剤

2.33

0

0

176

410

20 ロックウール

0.36

102,845

37,0240

0

20 ロックウール

0.36

102,845

37,02400

21 石綿吸音板（15t）

0.36

35,39812,74336,607

13,17921 石綿吸音板（15t）

0.36

35,39812,74336,607

13,17922 アルミ部材

9.37

39,724372,21439,580370,865

22 アルミ部材

9.37

39,724372,21439,580370,865

23 タイルカーペット

2.30

40,10992,25140,37092,851

23 タイルカーペット

2.30

40,10992,25140,37092,85124 スタイロフォーム（30t）

3.25

797

2,590

797

2,590

24 スタイロフォーム（30t）

3.25

797

2,590

797

2,590

25 PB

0.36

135,929

48,934

48,987

17,635

25 PB

0.36

135,929

48,934

48,987

17,63526 ALC用石灰石

0.02

2,448

49

1,857

37

26 ALC用石灰石

0.02

2,448

49

1,857

37

27 ポルトランド

0.32

436,402139,649

435,119

139,238

27 ポルトランド

0.32

436,402139,649

435,119

139,238

28 セメント（モルタル用）

0.75

66,54649,91054,61640,96228 セメント（モルタル用）

0.75

66,54649,91054,61640,96229 セメント（ALC用）

0.75

2,448

1,836

1,857

1,393

29 セメント（ALC用）

0.75

2,448

1,836

1,857

1,393

30 ケイ酸カルシウム（土石製品）

0.36

22,927

8,254

22,8348,220

30 ケイ酸カルシウム（土石製品）

0.36

22,927

8,254

22,8348,220

31 ガラス板（カーテンウォール）

6.20

15,751

97,577

15,68897,18731 ガラス板（カーテンウォール）

6.20

15,751

97,577

15,68897,187

総量

6,591,861

4,940,190

11,801,800

6,139,246

総量

6,591,861

3,065,005

11,801,800

3,866,888

比（RC造/S造）

1.00

1.00

1.79

1.24

比（RC造/S造）

1.00

1.00

1.79

1.26

その他

ⓒ2021 The Japan Iron and Steel Federation. All rights reserved

出典︓⽇本鉄鋼連盟建設環境研究会報告書「鋼構造建築物のLCA試算に向けた検討」2017.3

32

1. Overview of JISF and the three "Eco" activities

2. Lifecycle of steel products
3. ISO 20915 and JIS Q 20915 standards
4. LCI data collection and dataset release

5. Product Category Rule and Ecoleaf EPD for steel products
6. LCA promotion by JISF
ⓒ2021 The Japan Iron and Steel Federation. All rights reserved

33

EPD Product Category Rules for Steel Products
JISF developed the Product Category Rules (PCRs) for all the steel products for EPD ("Ecoleaf") program
to promote the understanding and use of the LCI of steel products including recycling.
Press release by JISF on Aug 2019 (abstract)
The Japan Iron and Steel Federation (JISF) has formulated the Product Category Rule (PCR) for all steel products except stainless steel in order tocomply with the EcoLeaf environmental labeling program of the Japan Environmental Management Association for Industry (JEMAI). The PCR was
approved by the Association on August 13. The PCR formulated this time conforms to the ISO 20915 standard and JIS Q 20915, and in the future, when
acquiring EcoLeaf certification for steel products, it will be required to quantify and disclose the environmental impact of steel products, reflecting
recycling effects.
・・・
In Japan, the Japan Environmental Management Association for Industry (JEMAI) has been operating EcoLeaf since 2002. In order to obtain EPDs,
including EcoLeaf, it is necessary to calculate each product type and formulate product category rules (PCRs), which are the basic rules for declaration.
For steel products, PCRs for the relevant products were formulated in 2018 in conjunction with the EcoLeaf application for screw joint rebar.
Now that the ISO 20915 standard was issued in November 2018 and JIS Q 20915 was issued in June 2019, there is an increasing need to calculate theenvironmental impact of all steel products based on these standards in a way that takes recycling into account. In response to the growing need to
calculate the environmental impact of all steel products in a way that takes recycling into account, the JISF has been working to develop a PCR for all
steel products in EcoLeaf. After submitting a PCR formulation proposal in April 2019, the PCR-Working Group prepared and submitted a draft, which
was approved in August and released to the public after public comments and an expert review. The four PCRs formulated this time cover steel products
and secondary processed steel products for construction and non-construction use, respectively.
JISF
https://www.jisf.or.jp/news/topics/190822.htmlⓒ2021 The Japan Iron and Steel Federation. All rights reserved34

Ecoleaf EPDs are certified conforming to ISO 20915 standard

cradle to gate cradle to gate
+ recycling

SuMPO
Nippon Steel Corporationⓒ2021 The Japan Iron and Steel Federation. All rights reserved35

Ecoleaf EPDs are certified conforming to ISO 20915 standard
For example, 17 Ecoleaf EPDs are published by Nippon Steel, most of them for construction products (ⓒ2021 The Japan Iron and Steel Federation. All rights reserved).

36

1. Overview of JISF and the three "Eco" activities

2. Lifecycle of steel products
3. ISO 20915 and JIS Q 20915 standards
4. LCI data collection and dataset release

5. Product Category Rule and Ecoleaf EPD for steel products
6. LCA promotion by JISF
ⓒ2021 The Japan Iron and Steel Federation. All rights reserved

37

LCA promotions by JISF
JISF LCA site: closed loop recycling, LC thinking, ISO 20915 standard, LCI data collection, etc.

ⓒ2021 The Japan Iron and Steel Federation. All rights reserved

38

LCA promotions by JISF

ⓒ2021 The Japan Iron and Steel Federation. All rights reserved

39

LCA promotions by JISF
JISF promotes the sustainability of steel and life cycle thinking with SNS.
Page views reached over 4 million.
Collaboration with YouTuber and quiz campaign were effective for the promotion.

ⓒ2021 The Japan Iron and Steel Federation. All rights reserved40