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Amlab Services Pte Ltd Certificate No. : LA-2006-0343-F 7 Soon Lee Street #03-10/11 iSpace Issue No. : 15 Singapore 627608 Date : 15 March 2018 Page : 1 of 13

FIELD OF TESTING : Environmental Testing

MATERIALS / PRODUCTS TESTED

TESTS / PROPERTIES STANDARD METHODS /

TECHNIQUES / EQUIPMENT

APHA Methods are based on the

22nd Edition, 2012

HACH Methods are based on

DR/5000.

A Potable Water / 1. pH APHA 4500-H+B

Water Tank 2. Appearance APHA 2110

3. Taste -

4. Odor -

5. Color HACH 8025

6. Turbidity APHA 2130 B

7. Acidity APHA 2310 B

8. Alkalinity (as CaCO3) / Bicarbonate / APHA 2320 B

Carbonate

9. Hardness (Total / calcium) (as CaCO3) APHA 2340 B / C

APHA 3500-Ca B

10. Conductivity / Resistivity APHA 2510 B

11. Salinity APHA 2520 B

12. Total Solid APHA 2540 B

13. Total Dissolved Solid APHA 2540 C

14. Total Suspended Solid APHA 2540 D

15. Heavy Metals (As, Cd, Cr, Fe, K, Na, APHA 3120 B

Mg, Ca, Mn, Al, Cu, Pb, Ag, Be, Se, Ba,

Zn, Mo, Ni, Sn, Sr, B, Sb, Tl)

16. Mercury (Hg) Mercury Analyzer

17. Fluoride (F-) HACH 8029 / APHA 4110 B

18. Chloride (Cl-) HACH 8113 / APHA 4110 B

Certificate No. : LA-2006-0343-F Issue No. : 15 Date : 15 March 2018 Page : 2 of 13




19. Nitrite (NO2-) HACH 8507 / APHA 4110 B

20. Nitrate (NO3-) HACH 8192 / APHA 4110 B

21. Bromide (Br-) APHA 4110 B

22. Phosphate (PO43-) HACH 8178 / APHA 4110 B /

23. Sulphate (SO42-) HACH 8051 / APHA 4110 B /

24. Nitrate Nitrogen as N APHA 4110 B

25. Ortho phosphate as P APHA 4110 B

26. Total Residual Chlorine HACH 8167

27. Free Chlorine HACH 8021

28. Cyanide (CN-) APHA 4500-CN- B / C / D / E / F

29. Ammonia APHA 4500-NH3 B / C / F

30. Ammoniacal Nitrogen as N APHA 4500-NH3 B / F

31. Total Nitrogen (TN) JIS K0102.45.5 : 2016

32. Total Phosphorus as P APHA 4500-P B / E

33. Silica (as SiO2) APHA 4500-SiO2 C / D

34. Total Organic Carbon (TOC) )

35. Dissolved Organic Carbon (DOC) ) APHA 5310 B (2014)

36. Inorganic Carbon (IC) )

37. Total Carbon (TC) )

38. Detergent (Linear alkylate sulphonate APHA 5540 C

as methylene blue active substances)

39. Total Plate Count ^ APHA 9215 B / C / D

40. Total Coliform Count ^ APHA 9221 B / APHA 9222 B

41. Total Fecal Coliform Count ^ APHA 9221 E / APHA 9222 D

42. Total Escherichia coli Count ^ APHA 9221 F /APHA 9222 B / D / G

43. Fecal Streptococcus & Enterococcus ^ APHA 9230 C

44. Legionella ^ ISO 11731: 2017

45. Chlorophyll A APHA 10200 H

46. Volatile Organic Compound (VOCs) USEPA 8260 C (Aug 2006)

(See Appendix A – List) *

47. Semi-Volatile Organic Compounds USEPA 3510C (Dec 1996)

(SVOCs) (See Appendix B – List) * USEPA 8270D (Jul 2014)

48. Total Petroleum Hydrocarbon & USEPA 8015C (Feb 2007)

Mineral Oil *

B Ground Water 1. pH APHA 4500-H+B





2. Heavy Metals (As, Sb, Ba, Cd, Cr, Co, APHA 3120 B

Cu, Ni, Pb, Mo, Zn)

3. Mercury Mercury Analyzer

4. Free Cyanide USEPA 9213

5. Total Cyanide APHA 4500- CN B / C / D / E / F / N

6. Cyanide-Complex (pH < 5) APHA 4500- CN B / C / D / E / F / N

USEPA 9213

7. Cyanide-Complex (pH ≥ 5) APHA 4500- CN B / C / D / E / F / N

USEPA 9213

8. Thiocyanate (sum) APHA 4500- CN M

9. BOD APHA 5210 B

10. COD APHA 5220 B/ HACH 8000

11. TOC APHA 5310 B (2014)

12. F-, Cl-, Br-, PO43-, SO4

2- APHA 4110 B


14. Ammonia (NH3) APHA 4500-NH3 B / C / F / H

15. Semi-Volatile Organic Compounds USEPA 3510 C / 8270D (Jul 2014)

(SVOCs) (See Appendix B – List) *

16. Volatile Organic Compound (VOCs) US EPA 8260 C


17. Total Petroleum Hydrocarbon & US EPA 8015 C

Mineral Oil *

18. Total Phosphorus as P APHA 4500-P H

19. Phenolic Compounds (as Phenol) In-house Method ENVi-W051

C Effluent Water 1. pH APHA 4500-H+B

Waste Water 2. Appearance APHA 2110

3. Turbidity APHA 2130B

4. Color HACH 8025


6. Alkalinity (as CaCO3) / Bicarbonate APHA 2320 B

/ Carbonate

7. Hardness (Total / Calcium) (as CaCO3) APHA 2340 B / C /

APHA 3500-Ca B










13. Temperature of Discharge APHA 2550 B


Mg, Ca, Mn, Al, Cu, Co, Pb, Ag, Be, Se,

Ba, Zn, Mo, Ni, Sn, Sr, B, Sb, Tl)


16. Hexavalent Chromium (Cr6+) APHA 3500-Cr B

17. Fluoride(F-) HACH 8029 / APHA 4110 B

18. Chloride (Cl-) HACH 8113 / APHA 4110 B /

APHA 4500-Cl-B




22. Phosphate (PO43-) HACH 8178 / APHA 4110 B /


24. Nitrate Nitrogen as N ) APHA 4110 B

25. Ortho phosphate as P )




29. Free Cyanide USEPA 9213 (Dec 1996)

30. Cyanide complex (pH<5) APHA 4500-CN- B / C / E / F / M / N

USEPA 9213 (Dec 1996)

31. Cyanide complex (pH>5) APHA 4500-CN- B / C / E / F / M / N

USEPA 9213 (Dec 1996)

32. Total Cyanide APHA 4500-CN- N

33. Thiocyanate APHA 4500 CN- M

34. Ammonia (NH3) APHA 4500-NH3 B / C / F / H


36. Total Nitrogen (TN) JIS K0102.45.5: 2016

37. Total Phosphorus as P APHA 4500-P B / E / H

38. Sulfide (S2-) HACH 8131

39. Silica (as SiO2) APHA 4500-SiO2C / D

40. BOD (5 days at 20ºC) APHA 5210 B

41. COD HACH 8000 / APHA 5220 B









46. Grease & Oil (Total) APHA 5520 B

47. Grease & Oil (Hydrocarbon) APHA 5520 B / F

48. Grease & Oil (Glycerides of fatty acids) APHA 5520 B / F

49. Phenolic Compounds (as Phenol) HACH 8047 / APHA 5530 C: 2005

In-house Method ENVi-W051






54. Total Escherichia coli. Count ^ APHA 9221 F

APHA 9222 B / D / G



57. Metals in Total Calculation



59. Semi-Volatile Organic Compounds USEPA 3510C (Dec 1996) /

(SVOCs) (See Appendix B – List) * USEPA 8270D (Jul 2014)

60. Total Petroleum Hydrocarbon & EPA 8015C (Feb 2007)

Mineral Oil *

61. Organotin (Dibutyltin,Tetrabutyltin, ISO 17353:2004 (E)

Dimenthyltin, Tricyclohexyltin,

Diphenyltin) *

62. Caustic Alkalinity APHA 2320B/ APHA 4500-CO2 D

D RO Water 1. pH APHA 4500-H+ B

Permeate Water 2. Appearance APHA 2110

3. Taste -

4. Odor -

5. Color HACH 8025




Carbonate

9. Hardness (Total / Calcium) (as CaCO3) APHA 2340 B / C /

APHA 3500-Ca B











Mg, Ca, Mn, Al, Cu, Pb, Ag, Be, Se, Ba,

Zn, Mo, Ni, Sn, Sr, B, Sb, Tl)


17. Fluoride (F-) HACH 8029 / APHA 4110 B

18. Chloride (Cl-) HACH 8113 / APHA 4110 B




22. Phosphate (PO43-) HACH 8178 / APHA 4110 B


24. Nitrate Nitrogen as N ) APHA 4110 B

25. Ortho phosphate as P )




29. Ammonia (NH3) APHA 4500-NH3 B / C / F


31. Total Nitrogen (TN) JIS K0102.45.5 : 2016



34. Biological Oxygen Demand (BOD) APHA 5210B

(5 days at 20°C)

35. Chemical Oxygen Demand (COD) HACH 8000










44. Total Escherichia coli Count ^ APHA 9221 F / 9222 B / D / G







47. Volatile Organic Compound (VOCs) US EPA 8260 C (Aug 2006)


E Swimming Pool 1. pH APHA 4500-H+B

2. Appearance APHA 2110

3. Color HACH 8025


5. Heavy Metals (Na, Cu) APHA 3120 B



8. Total Coliform Count ^ APHA 9221B / APHA 9222 B


10. Total Escherichia coli Count ^ APHA 9221 F

F Boiler Water, 1. pH APHA 4500-H+B

Cooling Tower Water 2. Hardness (Total / Calcium) (as CaCO3) APHA 2340 B / C /

Water feature and APHA 3500-Ca B

Chilled Water 3. Conductivity / Resistivity APHA 2510 B



6. Heavy Metals (Fe, Na, Cu) APHA 3120 B

7. Hexavalent Chromium (Cr6+) APHA 3500-Cr B

8. Chloride (Cl¯) Hach 8113 / APHA 4110 B /

APHA 4500-Cl¯ B

9. Nitrite (NO¯2) HACH 8507 / APHA 4110 B

10. Phosphate (PO43¯) HACH 8178 / APHA 4110 B /

11. Sulfate (SO42¯) HACH 8051/ APHA 4110 B /

12. Ammonia (NH3) APHA 4500-NH3B / C / F



15. Legionella ^ AS 3896: 2017 / ISO 11731:2017

16 Alkalinity (as CaCO3) / APHA 2320 B

Bicarbonate / Carbonate

G Sea Water 1. pH APHA 4500-H+ B

2. Color HACH 8025








Carbonate

6. Conductivity /Resistivity APHA 2510 B




10. Heavy Metals (As, Cd, Cr, Fe, Be, Ni, B) APHA 3120 B

11. Fluoride (F-) HACH 8029

12. Chloride (Cl-) APHA 4500-Cl- B

13. Nitrite (NO2-) HACH 8507

14. Nitrate (NO3-) HACH 8192

15. Phosphate (PO43-) HACH 8178

16. Sulfate (SO42-) HACH 8051



19. Cyanide (CN-) APHA 4500-CN¯ B / C / D / E / F

20. Ammonia (NH3) APHA 4500-NH3 B / C / F

21. Sulfide (as S2-) HACH 8131

22. BOD (5 days at 20ºC) APHA 5210 B

23. COD Manual on Chemical Analysis of

Coastal Water and Sediment

24. Grease & Oil (Total) APHA 5520 B

25. Grease & Oil (Hydrocarbon) ) APHA 5520 B / F

26. Grease & Oil (Glycerides of fatty acids) )

27. Detergent (Linear alkylate sulphonate as APHA 5540 C

methylene blue active substances)

H DI / Ultra Pure Water 1. pH APHA 4500-H+B


3. Total Nitrogen (TN) JIS K0102.45.5 :2016





8. Total Plate Count ^ APHA 9215 D

I Membrane Water 1. Salinity APHA 2520 B

2. Heavy Metals (Ni, Sn, Sb, Tl) APHA 3120 B

3. Nitrate Nitrogen as N APHA 4110 B





4. Ortho phosphate as P APHA 4110 B







J Sludge / Ash Toxicity Characteristic Leaching Procedure USEPA 1311

(TCLP)

1. Metals – As, Ba Cd, Cr, Cu, Fe, Pb, ICP-OES

Mn, Ni, Se, Ag & Zn


3. Phenolic Compounds (as Phenol) HACH 8047

4. Cyanide (CN-) APHA 4500-CN- B / C / E / N

5. Fluoride (F¯) APHA 4500-F- C

K Solid Waste / 1. Heavy Metals (As, Sb, Ba, Cd, Cr, Co, USEPA 3051A (Feb 2007) /

Sediment / Sand Cu, Hg, Pb, Mo, Ni and Zn) USEPA 6010D (Jul 2014)

2. Volatile Organic Compounds (VOCs) USEPA 5021A (Jul 2014)


3. Semi-Volatile Organic Compounds USEPA 3546 (Extraction) (Feb 2007)

(SVOCs) (See Appendix B – List) * USEPA 3550C

USEPA 8270D (Jul 2014)

4. pH BS 1377-3: 1990

5. Chlorides BS 1377-3: 1990

6. Organic Matter BS 1377-3: 1990

7. Sulfate BS 1377-3:1990

8. Moisture Content BS 1377-2: 1990

9. Cyanide (CN-) APHA 4500-CN, N (Micro Dist)

10. Cyanide complex (pH<5) APHA 4500-CN B / C / E

USEPA 9213 (Dec 1996)

11. Cyanide complex (pH>5) APHA 4500-CN B / C / E

USEPA 9213 (Dec 1996)


Mineral Oil *

13. Heavy Metals (Se, Al, Ag, B, Be, Ca, USEPA 3051A & 6010D (Jul 2014)

Fe, K, Mg, Mn, Na, Sn, Sr& V) USEPA 3050B & 6010D (Jul 2014)





14. Organotin * ISO 23161:2009

(Dibutyltin,Tetrabutyltin, Dimenthyltin,

Tricyclohexyltin, Diphenyltin)

L Soil 1. Heavy Metals (Se, Al, Ag, B, Be, Ca, Fe, USEPA 3051 A & 6010D (Jul 2014) /

K, Mg, Mn, Na, Sn, Sr, V, As, Sb, Ba, USEPA 3050 B & 6010D (Jul 2014)

Cd, Cr, Co, Cu, Hg, Pb, Mo, Ni & Zn)

2. Volatile Organic Compounds (VOCs) USEPA 5021A (Jul 2014)


3. Semi-Volatile Organic Compounds USEPA 3546 (Extraction) (Feb 2007)

(SVOCs) (See Appendix B – List) * USEPA 3550C

USEPA 8270D (Jul 2014)

4. pH BS 1377-3: 1990

5. Chlorides BS 1377-3: 1990

6. Organic Matter BS 1377-3: 1990

7. Sulphate BS 1377-3:1990

8. Moisture Content BS 1377-2: 1990

9. Cyanide (CN-) APHA 4500-CN, N (Micro Dist)

10. Cyanide complex (pH<5) APHA 4500-CN B/C/E

USEPA 9213 (Dec 1996)

11. Cyanide complex (pH>5) APHA 4500-CN B / C / E

USEPA 9213 (Dec 1996)


Mineral Oil *

13. Organotin * ISO 23161:2009

(Dibutyltin,Tetrabutyltin, Dimenthyltin,

Tricyclohexyltin, Diphenyltin)


Approved Signatories

1. Mr William Pang Win Full ) For all accredited tests

2. Ms Mui Chin Nee ) For all microbiology (^) tests and all GCMS (*) tests

3. Mr Tay Sin Kit } For all microbiology (^) tests

GCMS tests are marked as asterix (*) Microbiology tests are marked as arrow (^) Note: This laboratory is accredited in accordance with the recognised International Standard ISO/IEC 17025. A laboratory's fulfilment of the requirements of ISO/IEC 17025 means the laboratory meets both the technical competence requirements and management system requirements that are necessary for it to consistently deliver technically valid test results. The management system requirements in ISO/IEC 17025 are written in language relevant to laboratory operations and operate generally in accordance with the principles of ISO 9001.


Appendix A – List of Volatile organic Compounds (VOC) Monocyclic Aromatics Halogenated Aliphatics Aliphatics Benzene 1,1,1,2-Tetrachloroethane Nonane 1,2,4-Trimethybenzene 1,1,1-Trichloroethane Decane 1,3,5-Trimethybenzene 1,1,2,2-Tetrachloroethane Hexane Ethylbenzene 1,1,2- Trichloroethane Heptane Isopropylbenzene 1,1-Dichloroethane Octane m-xylene 1,1-Dichloroethene 1,1-Dichloropropene Trihalomethanes n-Butylbenzene 1,2,3- Trichloropropane Bromodichloromethane n-Propylbenezene 1,2-Dibromo-3-chloropropane Bromoform o-xylene 1,2-Dibromoethane Chloroform p-xylene 1,2-Dichloroethane Dibromochloromethane sec-Butylbenzene 1,3-Dichloropropane Styrene Bromochloromethane Oxygenated Compounds tert-Butylbenzene Bromomethane Acetone Toluene Carbon tetrachloride 2-Butanone (MEK) Chloroethane 2-Hexanone (MBK) Halogenated Aromatics Chloromethane 2-Methyl-1-propanol (Isobutanol) 1,2,3-Trichlorobenzene cis-1, 2-Dichloroethene 4-Methyl-2-pentanone (MIBK) 1,2,4-Trichlorobenzene cis-1,3-Dichloropropene Diethyl ether 1,2-Dichlorobenzene Dibromomethane Ethanol 1,3-Dichlorobenzene Dichlorodifluoromethane Furan 1,4-Dichlorobenzene Hexachlorobutadiene Isopropyl alcohol 2-Chlorotoluene Methylene Chloride Isopropyl ether 4-Chlorotoluene Tetrachloroethylene Tetrahydrofuran Bromobenzene Tetrachloromethane Methyl tert-butyl-ether (MTBE) Chlorobenzene trans-1,2-Dichloroethene Cyclohexanone trans-1,3-Dichloropropene Fumigants Trichloroethylene Others 2,2-Dichloropropane Trichlorofluoromethane Dimethyl Sulphide 1,2-Dichloropropane Vinyl chloride Dimethyl Sulphoxide DMF (N,N-Dimethylformamide) Napthalene Turpentine Tetrahydrothiophene


Appendix B – List of Semi-Volatile organic Compounds (SVOC) Anilines and Benzidines Nitroaromatics and Ketone Pesticides 2-Nitroaniline 2,4-Dinitrotoluene Alachlor 3,3'-Dichlorobenzidine 2,6-Dinitrotoluene Aldrin 3-Nitroaniline Azobenzene alpha-BHC 4-Chloroaniline Isophorone Atrazine 4-Nitroaniline Nitrobenzene Azinphos-ethyl Aniline Azinphos-methyl Benzidine Phenols beta-BHC Carbazole 2,3,4,6-Tetrachlorophenol Carbaryl 2,4,6-Trichlorophenol Carbofuran Chlorinated Hydrocarbons 2,4-Dichlorophenol Chlordane 1,2,4–Trichlorobenzene 2,4-Dimethylphenol Chlorobenzilate 1,2-Dichlorobenzene 2,4-Dinitrophenol Chloroneb 1,3-Dichlorobenzene 2-Chlorophenol Chlorothalonil 1,4-Dichlorobenzene 2-Methyl-4,6-dinitrophenol (DNOC) Chlorpyriphos Chloronapthalene 2-Methylphenol (o-Cresol) delta-BHC Hexachlorobenzenes 2-Nitrophenol Diazinon Hexachlorobutadiene 3-Methylphenol (m-Cresol) Dieldrin Hexachloroethane 4-Chloro-3-methylphenol Endosulfan I Hexachloropentatadiene 4-Methylphenol (p-Cresol) Endosulfan II Pentachlorobenzenes m-dihydroxybenzene (resorcinol) Endosulfan sulfate Polychlorobiphenyls (PCBs) o-dihydroxybenzene (catechol) Endrin Tetrachlorobenzenes p-dihydroxybenzene (hydroquinone) Endrin aldehyde Chlorobenzene Pentachlorophenol Endrin ketone 1,2,3-Trichlorobenzene Phenol Etridiazole gamma-BHC Haloethers Polynuclear Aromatics Heptachlor 4-chlorodiphenyl ether Acenaphthene Heptachlor epoxide bis(2-chloroethoxy) methane Acenaphthylene Malathion Bis(2-chloroethyl) ether Anthracene maneb Bis(2-chloroisopropyl) ether Benzo(a)anthracene Metazachlor Polybrominateddiphenyl ethers (PBDEs) Benzo(a)pyrene Metolachlor Benzo(b)fluoranthene p,p’-DDD Nitroamines Benzo(g,h,i)perylene p,p’-DDE N-Nitrosodimethylamine Benzo(k)fluoranthene p,p’-DDT N-Nitrosodi-n-propylamine Chrysene p,p’-Methoxychlor N-Nitrosodiphenylamine Dibenzo(a,e)pyrene Parathion-ethyl Pyridine Dibenzo(a,h)anthracene Parathion-methyl Dibenzo(a,j)acridine Pendimethalin Phthalate Esters Dibenzofuran Permethrin Dimethyl phthalate (DMP) Fluoranthene Propachlor Diethyl phthalate (DEP) Fluorene Simazine Dibutyl phthalate (DBP) Ideno (1,2,3-cd) pyrene Trifluralin Benzylbutyl phthalate (BBP) Naphthalene Bis-(2-ethylhexyl) phthalate (DEHP) Phenanthrene Di-n-octyl phthalate (DNOP) Pyrene Di isobutyl phthalate (DIBP) Di hexyl phthalate (DHP)

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