First lab managers’ meeting of the South-East Asia Laboratory NETwork (SEALNET 2.0) - Quality improvement in Asian soil laboratories: towards standardization and harmonization of soil analyses and their interpretation, Bogor, Indonesia, 20 - 24 November 2017.

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2. Number of staff: 12 persons
(12 women)
Experience in lab testing:
> 5 years 9 persons
< 5 years 3 persons
Experience in lab management:
> 5 years 1 persons
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4. How many different rooms? 9 rooms
How many m2
of laboratory space? 300 m2
Name Total
Chemical Storage Room 1
Laboratory Equipment Room 4
Weighing Room 1
Soil Sample Storage Room 1
Fume Hood and Oven Room 1
Water Purification Room 1
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5. Office of Science for LandOffice of Science for Land
DevelopmentDevelopment
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6. BalancesFumehoods
OvenShakers
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7. Flame
photometer
AAS
Auto Titrator with Multiple Sample Changer
Spectrophotometer
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8. Organizations Schedule
National
Department of Agriculture
(DOA)
1 time/year (2017)
International
ASPAC 3 times/year (2015)
SEALNET 1 time (2016-2017)
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9. ISO/IEC17025
on process
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10. Parameter Method Units Rating *
Low Moderate High
OM Walkley & Black % <1.0 1.5 – 2.5 >3.5
P BrayII mg/kg <10 11 - 15 >15
K
Ammonium acetate
1N pH 7
mg/kg <60 61 - 90 >90
* Dent and Changprai, 1973; Land Classification and FAO Project Staff, 1973; Soil Survey
Division Staff, 1993
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11. Parameter Method Rating
(USDA)
Range
pH ASTM D4972-13 Ultra acid <3.5
Extremely acid 3.5-4.4
Very strongly acid 4.5-5.0
Strongly acid 5.1-5.5
Moderately acid 5.6-6.0
Slightly alkaline 6.1-6.5
Neutral 6.6-7.3
Slightly alkaline 7.4-7.8
Moderately alkaline 7.9-8.4
Strongly alkaline 8.5-9.0
Very strongly alkaline >9.0
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12. * Peverill et al., 1999; Mass and Hoffman 1997
Parameter Method Units EC
(dS/m)
Range Rating*
10-20%
clay
20-40%
clay
40-60%
clay
60-80%
clay
EC
(1:5)
ISO 11265 dS/m
<0.95 <0.07 <0.09 <0.12 <0.15 Very Low
0.95-1.9 0.07-0.15 0.09-0.19 0.12-0.24 0.15-0.3 Low
1.9-4.5 0.15-0.34 0.19-0.45 0.24-0.56 0.3-0.7 Medium
4.5-7.7 0.34-0.63 0.45-0.76 0.56-0.96 0.7-1.18 High
7.7-12.2 0.63-0.93 0.76-1.21 0.96-1.53 1.18-1.87 Very High
>12.2 >0.93 >1.21 >1.53 >1.87 Extreme
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13. 00
Customer
information
Result Analysis
and
Interpretation
Reccomendation
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Report form

14. How many routine laboratories exist in your country?How many routine laboratories exist in your country?
Are they ‘mobile’ laboratories?Are they ‘mobile’ laboratories?
Are the soil test kits commonly used?Are the soil test kits commonly used?
There are 28 routine laboratories in Thailand
(13 lab from LDD, 9 lab from DOA and 6 lab from university labs)
Yes. They are 13 mobile labs from LDD
Yes. The soil test kits are commonly used at LDD
LDD provide soil test kits to
Soil doctor according to policy
LDD provide soil test kits to
Soil doctor according to policy
pH test kit N, P, K test kit 14

15. What do you think your lab is strong at?What do you think your lab is strong at?
1) Staffs have motivation.
2) Good facilities and new equipments.
3) Training on soil analysis and quality assurance every year
4) Chemistry Labs have quality control
• Internal reference materials (IRM)
or -Duplicates samples
or -Control chart
or -Calibrate equipments once a year
5) SEALNET support for training staffs. (IRD/LDD)
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16. What do you think that could be improved?What do you think that could be improved?
What do you wish to get improved after our meeting ?What do you wish to get improved after our meeting ?
1) Improve skill of staffs.
2) Improve good management practice.
3) Maintain the quality control system.
4) Our target: get accreditation for ISO/IEC 17025 system: at
least 3 Labs.
1) We wish we could get an opportunity to participate in
laboratory proficiency test with other countries.
2) We would appreciate to get further training on PT program
and basic knowledge need for the ISO/IEC 17025 standard.
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