Coal product

Standard coal of Vietnam, Applied area, Quoted standards, Experimental method, Technical requirement...

Standard coal of Vietnam:

Applied area

 
  •     Standard is applied for salable lump coal and dust coal of Hon Gai - Cam Pha area.
  •     Standard is applied for salable dust coal of Nui Hong area.
  •     Standard is applied for salable lump coal and dust coal of Khanh Hoa mine.

Quoted standards
 
  •     TCVN 172:1997 (ISO 589:1981) Black  coal – determining total moisture.
  •     TCVN 173:1995 (ISO 1171:1981) Fuel – determining ash content.
  •     TCVN 174:1995 (ISO 652:1981) Coal and coke – determining volatile matter.
  •     TCVN 175:1995 (ISO 334:1992) Solid fuel – determining general sulphur content by Eschka method.
  •     TCVN 200:1995 (ISO 1928:1976) Solid fuel - determining total heat value by using pumping method to measure calorific value and calculate real heat value.
  •     TCVN 318:1997 (ISO 1170:1977) Coal and coke – Calculating analyzed results on various basis.
  •     TCVN 1693:1995 (ISO 1988-1975) – Black coal – Sampling.
  •     TCVN 4307:86 Coal – Determining ratio of undersize and oversize.

Experimental method
 
  •     Sampling and preparation of sample according to TCVN 1693:1995 (ISO 1988-1975)
  •     Calculating analyzed results on various basis according to TCVN 318:1997 (ISO 1170-1977)
  •     Determining ratio of undersize for the initial delivery according to TCVN 4307-86
  •     Determining ash on dry basis Ak according to 173:1995 (ISO 1171-1981)
  •     Determining total moisture Wtp according to TCVN (ISO 589 - 1981)
  •     Determining volatile matter on dry basis Vk according to TCVN 174:1995 (ISO 652-1981)
  •     Determining general sulphur content on dry basis Sck according to TCVN 200: 1995 (ISO 334-1992)
  •     Determining heat value on dry basis according to TCVN 200:1995 (ISO 1928 - 1976)

Technical requirement
 
  •     Quality of salable lump coal and dust coal of Hon Gai – Cam Pha is fixed according to quality standard in Table CLT1.
  •     Quality of salable lump coal and dust coal of Mao Khe mine is fixed according to quality standard in Table CLT2.
  •     Quality of salable lump coal and dust coal of Vang Danh – Nam Mau is fixed according to quality standard in Table CLT3.
  •     Quality of salable coals of Na Duong mine is fixed according to quality standard in Table CLT4.
  •     Quality of salable coals of Nui Hong mine is fixed according to quality standard in Table CLT5.
  •     Quality of salable lump coal and dust coal of Khanh Hoa mine is fixed according to quality standard in Table CLT6.

- Table 1: Quality of salable coal of Hon Gai – Cam Pha

- Table 2: Quality of salable coal of Mao Khe

- Table 3: Quality of salable coal of Vang Danh – Nam Mau

- Table 4: Quality of salable coal of Na Duong mine

- Table 5: Quality of salable coal of Nui Hong

- Table 6: Quality of salable coal of Khanh Hoa

Basic standard coal

Applied area


The standard is applied for salable lump coal and dust coal (in Quang Ninh area) of Vinacoal besides the current standard coals.

Experimental method
 
  •     Sampling and preparation of sample according to TCVN 1693:1995 (ISO 1988-1975)
  •     Calculating analyzed results on various basis according to TCVN 318:1997 (ISO 1170-1977)
  •     Determining ratio of undersize for the initial delivery according to TCVN 4307-86
  •     Determining ash on dry basis Ak according to 173:1995 (ISO 1171-1981)
  •     Determining total moisture Wtp according to TCVN (ISO 589 - 1981)
  •     Determining calorific value on dry basis according to TCVN 200:1995 (ISO 1928 - 1976)

Technical requirement

Quality of salable lump coal and dust coal is fixed according to quality standard in enclosed table.

Classification

There are various types of lump coal, dust coal and peat coal according to size of grain.
 
  •     Various lump coals including 1a, 1b,1c
  •     Various lump coals with smaller size including 6a, 6b, 6c, 7a, 7b, 7c, 8a, 8b
  •     Dust coals including 7a, 7b, 7c
  •     Peat coals including 1a, 1b, 1c, 2a, 2b

- Salable coal quality – (TCCS): TC01:2003-TVN (Coal of Hon Gai – Cam Pha)

- Salable coal quality – (TCCS): TC01:2003-TVN (Coal of Mao Khe – Uong Bi – Nam Mau – Vang Danh)