タイヤ-LCCO2算定ガイドライン JATMA 確定 …

1 LCCO2 Ver. 2012 4 I.. 1 II. LCCO2 .. 4 1.. 4 2.. 4 3.. 4 4. ( ) .. 4 5.. 6 6.. 6 7. GWP (Global Warming Potential, ) .. 6 8.. 6 9.. 6 III. ( ) .. 7 1.. 7 1) .. 7 2) GHG .. 8 3) GHG .. 9 4) GHG .. 11 2.. 12 1) GHG .. 12 2) GHG .. 12 3.. 15 1) .. 15 2) GHG .. 15 4.. 16 1) .. 16 2) GHG .. 16 5.. 18 1) .. 18 2) GHG .. 18 3) GHG.

2 19 4) GHG .. 23 5) GHG .. 28 6) GHG .. 32 6. GHG .. 33 1 I. LCA LCCO2 (GHG; Greenhouse Gas) CO2 GHG LCA LCA 1998 10 11 1998 LCA LCA / ISO 14000 PAS2050 BPX30-323 GHG protocol LCA / 2010 6 / 2010 7 1998

3 10 LCA 2010 22 1998 ISO14044 PAS2050 BPX30-323 GHG protocol LCA ISO14040:2006 ISO14044:2006 ISO14040:2006 ISO14044:2006 ISO14040:2006 ISO14044:2006 2 LCA LCA CO2 2012 4 3 CSR 2012 1 CSR 2012 1 CSR

4 CSR 2011 3 2011 3 4 II. LCCO2 1. 2.

5 PCR ( ) TBR ( ) 3. 7 1. CO2 CH4 N2O HFCs PFCs SF6 NF3 HFCs PFCs SF6 NF3 4 4. ( ) 5 5 1. 5 ( ) 6 5.

6 1 6. (cradle to grave) 7. GWP (Global Warming Potential, ) IPCC (2007 )* 100 CO2 1 CH4 25 N2O 298, 8. LCCO2 LCCO2 9. ISO14044 CFP PAS2050 BPX30-323 GHG protocol LCA ISO14040:2006 ISO14044:2006 ISO14040:2006 ISO14044:2006 ISO14040:2006 ISO14044:2006 7 III.

7 ( ) JATMA 2. (kg) PCR 195/65R15 TBR 275 1. 1) JATMA 3. ( ) PCR (195/65R15) TBR (275 ) / 100 8 2) GHG GHG GHG 4.

8 GHG GHG (kgCO2e/kg) 10-1 Allen, , MRPRA 1979 JATMA LCA 2011 * MiLCA ( ) * MiLCA MiLCA 10-3 MiLCA MiLCA LCA (2011) JATMA * MiLCA ( ) MiLCA ( ) MiLCA Multiple interface Life Cycle Assessment ( , 2012 4 ) GHG GHG ( GHG [kgCO2e] {( [kg] GHG [kg-CO2e/kg] } 9 5.))

9 GHG ( kgCO2e/ ) PCR TBR 3) GHG 6. (km) 500km 500km 10 500 km 50 % GHG ( (1998) ) 500km 500 km 10 7.

10 GHG GHG (kgCO2e/kg) 10-1 1998 10 50 % ln x= ln (y/100) ln z x l/ y z kg 10-2 10-2 10-2 10-2 10-2 10-2 10-2 10-2 10-2 10-2 GHG GHG GHG [kgCO2e] [kg] (( GHG [kgCO2e/kg] ) 8. GHG ( kgCO2e/ ) PCR TBR 11 4) GHG GHG ( GHG ) = ( GHG ) + ( GHG ) 9.