Quality standards

The following is an excerpt from JIS Z7311:2010 “Refuse derived paper and plastics densified fuel(RPF)”.
Please refer to the website for the Japan Standards Association (JSA, http://www.jsa.or.jp/) where the aforementioned JIS paper, created on January 20, 2010, is sold.


This standard specifies the specifications of fuel prepared from refuse derived paper and plastics as main material, by compression molding, extrusion molding etc. (hereinafter referred to as “RPF”).


RPF is classified by types and classes shown in Table 1.

Table 1 – Types and classes of RPF

Type [ a] RPF-coke [ c] RPF [ d]
Class [ b] A B C

a Type is classified by gross calorific value.
b Class is classified by total chlorine content.
c RPF with coke-level gross calorific value.
d RPF with coal-level gross calorific value.


Table 2 – Quality of RPF

Type\Class RPF-coke RPF Test method
Gross calorific value
≥ 33 ≥ 25 ≥ 25 ≥ 25 JIS Z7302-2
Moisture content
mass percentage (%)
≥ 3 ≥ 5 ≥ 5 ≥ 5 JIS Z7302-3
Ash content
mass percentage (%)
≥ 5 ≥ 10 ≥ 10 ≥ 10 JIS Z7302-4
Total chlorine content
mass percentage (%)
≥ 0.6 ≥ 0.3 > 0.3 ≤ 0.6 > 0.6 ≤ 2.0 JIS Z7302-6

) Specimen sampling is in accordance with JIS Z 7302-1.


Main materials of RPF are refuse derived paper and plastics. Mixture of wood scraps, fiber waste and rubber waste with main materials is also acceptable if the quality of RPF meets quality requirements described in Table 2.

Classification rules

The limit values shown in Table 2 are average values of the latest six test results measured continuously more than one time a month. Depending on the agreement of relevant delivering and receiving parties, the number of tests to determine average values can be increased.

(Deliberation of the Japan Industrial Standards Committee, Published by the Japan Standards Association Established January 1, 2010)

Japan RPF Industry Association