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CERTIFIED REFERENCE MATERIAL

Triazine & Pesticide Mixture - 29 components; 100ug/ml each of [CAS:1912-24-9] ; Atrazine-desethyl [CAS:6190-65-4] ; Atrazine-desisopropyl [CAS:1007-28-9] ; Metamitron [CAS:41394-05-2] ; Chloridazon [CAS:1698-60-8] ; Metoxuron [CAS:19937-59-8] ; Carbetamide [CAS:16118-49-3] ; Bromacil [CAS:314-40-9] ; [CAS:122-34-9] ; [CAS:21725-46-2] ; Terbuthylazine-desethyl [CAS:30125-63-4] ; Methabenzthiazuron [CAS:18691-97-9] ; [CAS:15545-48-9] ; [CAS:1746-81-2] ; Diuron [CAS:330-54-1] ; Isoproturon [CAS:34123-59-6] ; Metobromuron [CAS:3060-89-7] ; Metazachlor [CAS:67129-08-2] ; Propazine [CAS:139-40-2] ; Dimefuron [CAS:34205-21-5] ; Terbuthylazine [CAS:5915-41-3] ; [CAS:330-55-2] ; [CAS:1982-47-4] ; Prometryn [CAS:7287-19-6] ; Chlorpropham [CAS:101-21-3] ; Terbutryn [CAS:886-50-0] ; [CAS:51218-45-2] ; Ethofumesate [CAS:26225-79-6] ; Ethidimuron [CAS:30043-49-3] in Acetonitrile

Lot N: XXXXXX Ref N: F128821 Certification Date:XXXXXX Barcode: XXXXXXXX

Component Certified Value* CAS Chemical Formula and uncertainty [µg/ml]

Atrazine 99.71 ± 1.19 1912-24-9 C8H14ClN5 Atrazine-desethyl 99.76 ± 1.88 6190-65-4 C6H10ClN5 Atrazine-desisopropyl 100.08 ± 2.34 1007-28-9 C5H8ClN5 Metamitron 99.93 ± 1.09 41394-05-2 C10H10N4O Chloridazon 99.57 ± 1.26 1698-60-8 C10H8ClN3O Metoxuron 100.01 ± 1.34 19937-59-8 C10H13ClN2O2 Carbetamide 100.00 ± 1.48 16118-49-3 C12H16N2O3 Bromacil 99.70 ± 1.17 314-40-9 C9H13BrN2O2 Simazine 100.09 ± 1.48 122-34-9 C7H12ClN5 Cyanazine 100.33 ± 1.50 21725-46-2 C9H13ClN6 Terbuthylazine-desethyl 100.19 ± 1.15 30125-63-4 C7H12ClN5 Methabenzthiazuron 100.00 ± 2.82 18691-97-9 C10H11N3OS Chlortoluron 99.88 ± 1.69 15545-48-9 C10H13ClN2O Monolinuron 99.72 ± 1.36 1746-81-2 C9H11ClN2O2 Diuron 99.80 ± 1.54 330-54-1 C9H10Cl2N2O Isoproturon 100.11 ± 1.21 34123-59-6 C12H18N2O Metobromuron 100.46 ± 1.26 3060-89-7 C9H11BrN2O2 Metazachlor 100.14 ± 1.66 67129-08-2 C14H16ClN3O Propazine 99.87 ± 1.57 139-40-2 C9H16ClN5 Dimefuron 100.18 ± 2.62 34205-21-5 C15H19ClN4O3 Terbuthylazine 100.31 ± 1.36 5915-41-3 C9H16ClN5 Linuron 99.97 ± 1.63 330-55-2 C9H10Cl2N2O2 Chloroxuron 99.73 ± 1.77 1982-47-4 C15H15ClN2O2 Prometryn 99.69 ± 1.70 7287-19-6 C10H19N5S Chlorpropham 100.36 ± 1.28 101-21-3 C10H12ClNO2 Terbutryn 100.27 ± 1.42 886-50-0 C10H19N5S Metolachlor 100.19 ± 1.06 51218-45-2 C15H22ClNO2 Ethofumesate 100.05 ± 1.62 26225-79-6 C13H18O5S Ethidimuron 99.86 ± 1.98 30043-49-3 C7H12N4O3S2

* WQP 5.15.1/2 The certified value was obtained gravimetrically and confirmed experimentally by GC/MS or HPLC

Density 0.7874 g/cm3 at 20°C

Starting Material Purity, Batch page 2 of 4

Atrazine 99.2% (41369623) Atrazine-desethyl 99.06% (41294239) Atrazine-desisopropyl 98.95% (41300251) Metamitron 98.6% (41328996) Chloridazon 99.9% (41368121) Metoxuron 99.5% (41292471) Carbetamide 96.71% (41337738) Bromacil 98.7% (41349892) Simazine 99.9% (41384985) Cyanazine 99.5% (41349939) Terbuthylazine-desethyl 97.4% (41356746) Methabenzthiazuron 97.95% (41335246) Chlortoluron 99.7% (41382271) Monolinuron 99.8% (41370919) Diuron 99.9% (41338735) Isoproturon 99.4% (41378304) Metobromuron 99.5% (41292099) Metazachlor 98.0% (41359228) Propazine 99.33% (41341049) Dimefuron 99.7% (41372302) Terbuthylazine 99.28% (41347225) Linuron 98.7% (41375938) Chloroxuron 99.5% (41291436) Prometryn 99.9% (41359648) Chlorpropham 99.9% (41342985) Terbutryn 98.0% (41374115) Metolachlor 97.8% (41350447) Ethofumesate 99.4% (41355596) Ethidimuron 99.0% (41271032)

Storage Conditions: Store in a freezer at -18°C or below

Expiry Date: XXXXXXXXXX

Concept of Certification and traceability statement: This certified reference material is produced by gravimetric measurement and dissolving the individual substances in Acetonitrile . The reported expanded uncertainty of measurement is stated as the standard uncertainty of measurement multiplied by the coverage factor k = 2, which for a normal distribution corresponds to a coverage probability of approximately 95%. The standard uncertainty of measurement has been determined in accordance with EA 4/02 and incorporates the uncertainties of the raw-material purity, the mass and the volume. The metrological traceability is defined as the “property of a measurement result whereby the result can be related to a reference through a documented unbroken chain of calibrations, each contributing to the measurement uncertainty”. The metrological traceability is ensured through gravimetric measurement and dissolving of certified reference material/s (traceable to SI) from laboratories/producers, accredited according to ISO 17034. The measurement results are traceable to SI. All analytical balances used for the preparation of the solution are calibrated yearly under an in-house procedure with class E1 and class E2 analytical weights, traceable to SI (DKD), and are checked daily. Class A laboratory glassware is used. The results from temperature measurement are traceable to SI. The thermometers used for solution's calibration are calibrated from an ISO 17025 accredited laboratory. The ambient conditions are controlled with a hygrometer calibrated from an ISO 17025 accredited laboratory. Both, purity of the starting materials and solvent, were checked using appropriate analytical instrument.

Intended use: For Laboratory Use Only This CRM is intended for: Calibration of TLC, GC/FID, GC/TCD, GC/ECD, GC/MS, GC/MS/MS, LC/UV, LC/MS and LC/MS/MS Validation of analytical methods Preparation of “working reference samples” Detection limit and linearity studies This statement is not intended to restrict the use for other purposes.

Instructions for the correct use of this certified reference material: This CRM can be used directly or can be diluted in an appropriate solvent. Only a clean class A glassware should be used. Do not pipet from container. Obtained concentration (in mg/l) after dilution is a result from the multiplication of certified value of CRM concentration and the CRM's volume used for dilution and divided into the flask's volume used for dilution. For quantitative analysis, we recommend analyzing this mixture separately, without mixing it with other solutions, to ensure accurate results for every compound.

Stability and storage: This CRM is with a guaranteed stability until ±5% of the certified concentration for a period of 6 months. Stability is guaranteed of an unopened original packaging stored, as written in the section: Storage Conditions. Even if the product is stable at normal laboratory conditions, in order to increase its stability, we highly recommend it to be stored in a refrigerator. The product should be used shortly after opening to avoid concentration changes due to evaporation. Warranty does not apply to a product stored after opening.

Hazardous situation: The normal laboratory safety precautions should be observed when working with this RM. Further details for the handling of this RM are available in a safety data sheet.

Level of homogeneity page 3 of 4

This solution was mixed according to an in-house procedure (MQP 5.13.1) and is guaranteed to be homogeneous. To ensure sufficient homogeneity of the sample prior to use thoroughly mix by inversion or sonicate.

Names of certifying officers:

Laboratory: Margarita Dimitrova

Manager: Krassimira Taralova

This document QF 5.17.1/1 version 1 is designed and the certified value(s) and uncertainty(ies) are determined in accordance with ISO Guide 31, ISO Guide 35,and Eurachem / CITAC Guides

This certificate relates solely to the lot number given above. All processes (including generating of this certificate) are completely controlled by the specialized Computer-Aided-Manufacturing (CAM) software.

This Certified Reference Material was produced under a quality management system that is: - Registered to ISO 9001 Quality Management System (Lloyd's Register Quality Assurance Ltd Cert No 0039638) - Accredited according to ISO/IEC 17025 – Testing (ANAB Cert No AT-1836) - Accredited according to ISO 17034 - Reference Material Producer (ANAB Cert No AR-1835)

Additional Information

Analytical Data: LC Conditions: Column Agilent Poroshell 120 EC-C18 3x50 mm, 2.7 µm Gradient elution Mobile phase A: 0.1 % Formic acid B: Acetonitrile Time A% B% Flow rate 0.5 ml/min 0 80 20 Injection volume 1µl 3 50 50 Column temp. 30°C 5 50 50 8 80 20 10 80 20 ESI Conditions: Drying Gas Flow 10 l/min Nebulizer Pressure 40 psig Capillary Voltage 4000 V Drying gas temperature 350°C Quad temp 100°C

Gravimetric Data

Component Purity Source Weighed Final Bulk/ Concen- Chemist % Lot No quantity, g quantity, Standard tration ID kg.10-3 Solution mg/kg lot No Atrazine 99.2 41369623 0.0248 3.5744 91666864 6882.7 AS 91666864 0.2173 11.8115 XXXXXXXX 126.623 KR Atrazine-desethyl 99.06 41294239 0.01123 2.9580 91659118 3760.8 AS 91659118 0.3979 11.8115 XXXXXXXX 126.693 KR Atrazine-desisopropyl 98.95 41300251 0.00932 2.2975 91665911 4014.0 AS 91665911 0.374 11.8115 XXXXXXXX 127.100 KR Metamitron 98.6 41328996 0.0326 3.5383 91645739 9084.5 AS 91645739 0.165 11.8115 XXXXXXXX 126.907 KR Chloridazon 99.9 41368121 0.0212 3.2900 91664594 6437.4 AS 91664594 0.232 11.8115 XXXXXXXX 126.443 KR Metoxuron 99.5 41292471 0.022 3.0789 91667793 7109.7 AS 91667793 0.211 11.8115 XXXXXXXX 127.008 KR Carbetamide 96.71 41337738 0.0245 3.0975 91646477 7649.4 AS 91646477 0.1961 11.8115 XXXXXXXX 126.999 KR Bromacil 98.7 41349892 0.0257 3.2041 91667786 7916.7 AS page 4 of 4

91667786 0.1889 11.8115 XXXXXXXX 126.612 KR Simazine 99.9 41384985 0.01577 4.0324 91665454 3906.9 AS 91665454 0.3843 11.8115 XXXXXXXX 127.115 KR Cyanazine 99.5 41349939 0.0172 3.0807 91660084 5555.3 AS 91660084 0.2709 11.8115 XXXXXXXX 127.413 KR Terbuthylazine-desethyl 97.4 41356746 0.0274 2.9728 91648822 8977.2 AS 91648822 0.1674 11.8115 XXXXXXXX 127.232 KR Methabenzthiazuron 97.95 41335246 0.00942 3.0011 91663849 3074.50 AS 91663849 0.4879 11.8115 XXXXXXXX 126.999 KR Chlortoluron 99.7 41382271 0.0128 3.1788 91660114 4014.7 AS 91660114 0.3732 11.8115 XXXXXXXX 126.848 KR Monolinuron 99.8 41370919 0.01826 2.9156 91652775 6250.4 AS 91652775 0.2393 11.8115 XXXXXXXX 126.633 KR Diuron 99.9 41338735 0.01475 2.8054 91661463 5252.4 AS 91661463 0.285 11.8115 XXXXXXXX 126.736 KR Isoproturon 99.4 41378304 0.02383 2.8346 91665577 8356.4 AS 91665577 0.1797 11.8115 XXXXXXXX 127.135 KR Metobromuron 99.5 41292099 0.02698 3.0499 91653574 8802.1 AS 91653574 0.1712 11.8115 XXXXXXXX 127.581 KR Metazachlor 98.0 41359228 0.01355 2.9411 91659156 4515.0 AS 91659156 0.3327 11.8115 XXXXXXXX 127.176 KR Propazine 99.33 41341049 0.01473 3.2584 91665706 4490.4 AS 91665706 0.3336 11.8115 XXXXXXXX 126.825 KR Dimefuron 99.7 41372302 0.00738 2.7239 91663832 2701.25 AS 91663832 0.5563 11.8115 XXXXXXXX 127.224 KR Terbuthylazine 99.28 41347225 0.01928 3.0405 91662125 6295.4 AS 91662125 0.239 11.8115 XXXXXXXX 127.385 KR Linuron 98.7 41375938 0.01459 2.8638 91659163 5028.4 AS 91659163 0.2982 11.8115 XXXXXXXX 126.951 KR Chloroxuron 99.5 41291436 0.01265 2.2794 91664815 5522.0 AS 91664815 0.2709 11.8115 XXXXXXXX 126.649 KR Prometryn 99.9 41359648 0.0129 2.2502 91662446 5727.1 AS 91662446 0.2611 11.8115 XXXXXXXX 126.602 KR Chlorpropham 99.9 41342985 0.02112 2.9405 91662224 7175.4 AS 91662224 0.2098 11.8115 XXXXXXXX 127.453 KR Terbutryn 98.0 41374115 0.01931 2.5013 91662439 7565.5 AS 91662439 0.1988 11.8115 XXXXXXXX 127.336 KR Metolachlor 97.8 41350447 0.03897 3.3755 91666192 11291.0 AS 91666192 0.1331 11.8115 XXXXXXXX 127.235 KR Ethofumesate 99.4 41355596 0.01366 2.9541 91663252 4596.3 AS 91663252 0.3265 11.8115 XXXXXXXX 127.055 KR Ethidimuron 99.0 41271032 0.01077 2.4338 91659460 4380.9 AS 91659460 0.3419 11.8115 XXXXXXXX 126.813 KR Data File D:\CHEM32\1\DATA\10_2020\CAF006173.D Sample Name: 719129

MSD1 216, EIC=215.7:216.7 (D:\CHEM32\1\DATA\10_2020\CAF006173.D) ES-API, Pos, SIM, Frag: 100

e in raz 5000000 At -

.026 4000000 5 3000000 2000000 1000000 0 2 4 6 8 min MSD1 188, EIC=187.7:188.7 (D:\CHEM32\1\DATA\10_2020\CAF006173.D) ES-API, Pos, SIM, Frag: 100

l y 3500000 h et es 3000000 d e- in 2500000 raz At 2000000 - .119 1500000 2 1000000 500000 0 2 4 6 8 min MSD1 174, EIC=173.7:174.7 (D:\CHEM32\1\DATA\10_2020\CAF006173.D) ES-API, Pos, SIM, Frag: 100

l py 3000000 o pr o is 2500000 es d e- in 2000000 raz At 1500000 - .257 1000000 1 500000 0 2 4 6 8 min MSD1 203, EIC=202.7:203.7 (D:\CHEM32\1\DATA\10_2020\CAF006173.D) ES-API, Pos, SIM, Frag: 100

iton m 3500000 a et M 3000000 - 2500000 .851 1 2000000 1500000 1000000 500000 0 2 4 6 8 min MSD1 222, EIC=221.7:222.7 (D:\CHEM32\1\DATA\10_2020\CAF006173.D) ES-API, Pos, SIM, Frag: 100

n ro 2000000 zu thia n nz o be z a h 1500000 rida et lo M h - C - 1000000 .802 .168 4 2 500000

0 2 4 6 8 min MSD1 229, EIC=228.7:229.7 (D:\CHEM32\1\DATA\10_2020\CAF006173.D) ES-API, Pos, SIM, Frag: 100

n ro 2500000 u x o et M 2000000 - .801 1500000 3

1000000

500000

0 2 4 6 8 min

Instrument 1 11/1/2020 9:54:40 AM Page 1 of 5 Data File D:\CHEM32\1\DATA\10_2020\CAF006173.D Sample Name: 719129

MSD1 237, EIC=236.7:237.7 (D:\CHEM32\1\DATA\10_2020\CAF006173.D) ES-API, Pos, SIM, Frag: 100

de mi

1000000 rbeta a C 800000 - .880 600000 3 400000 200000 0 2 4 6 8 min MSD1 261, EIC=260.7:261.7 (D:\CHEM32\1\DATA\10_2020\CAF006173.D) ES-API, Pos, SIM, Frag: 100

il 700000 ac

600000 Brom -

500000 .539 5 400000 300000 200000 100000 0 2 4 6 8 min MSD1 202, EIC=201.7:202.7 (D:\CHEM32\1\DATA\10_2020\CAF006173.D) ES-API, Pos, SIM, Frag: 100

e l in ethy 5000000 maz Si -des - ine az 4000000 .009 yl 4 uth b er 3000000 T -

.377 2000000 4 1000000 0 2 4 6 8 min MSD1 241, EIC=240.7:241.7 (D:\CHEM32\1\DATA\10_2020\CAF006173.D) ES-API, Pos, SIM, Frag: 100

e in naz 2000000 a y C -

1500000 .335 4 1000000

500000

0 2 4 6 8 min MSD1 213, EIC=212.7:213.7 (D:\CHEM32\1\DATA\10_2020\CAF006173.D) ES-API, Pos, SIM, Frag: 100

n 3000000 ro u rtol lo 2500000 h C - 2000000 .947 4 1500000 1000000 500000 0 2 4 6 8 min MSD1 215, EIC=214.7:215.7 (D:\CHEM32\1\DATA\10_2020\CAF006173.D) ES-API, Pos, SIM, Frag: 100

n

nuro oli 800000 on M - 600000 .948 4 400000

200000

0 2 4 6 8 min

Instrument 1 11/1/2020 9:54:40 AM Page 2 of 5 Data File D:\CHEM32\1\DATA\10_2020\CAF006173.D Sample Name: 719129

MSD1 233, EIC=232.7:233.7 (D:\CHEM32\1\DATA\10_2020\CAF006173.D) ES-API, Pos, SIM, Frag: 100

n ro 1400000 iu D 1200000 - .308 1000000 5 800000 600000 400000 200000 0 2 4 6 8 min MSD1 207, EIC=206.7:207.7 (D:\CHEM32\1\DATA\10_2020\CAF006173.D) ES-API, Pos, SIM, Frag: 100

turon o 4000000 pr so I -

3000000 .225 5 2000000

1000000

0 2 4 6 8 min MSD1 259, EIC=258.7:259.7 (D:\CHEM32\1\DATA\10_2020\CAF006173.D) ES-API, Pos, SIM, Frag: 100

700000 ron

romu b 600000 o et M 500000 -

.540 400000 5 300000 200000 100000 0 2 4 6 8 min MSD1 278, EIC=277.7:278.7 (D:\CHEM32\1\DATA\10_2020\CAF006173.D) ES-API, Pos, SIM, Frag: 100

2000000 or chl a z 1750000 a et M 1500000 -

1250000 .673 5 1000000 750000 500000 250000 0 2 4 6 8 min MSD1 230, EIC=229.7:230.7 (D:\CHEM32\1\DATA\10_2020\CAF006173.D) ES-API, Pos, SIM, Frag: 100

ne ine azi az 5000000 yl Prop uth - b er T 4000000 .885 - 5 .151 3000000 6 2000000 1000000 0 2 4 6 8 min MSD1 339, EIC=338.7:339.7 (D:\CHEM32\1\DATA\10_2020\CAF006173.D) ES-API, Pos, SIM, Frag: 100

500000 imefuron D 400000 - .798 5 300000 200000 100000 0 2 4 6 8 min

Instrument 1 11/1/2020 9:54:40 AM Page 3 of 5 Data File D:\CHEM32\1\DATA\10_2020\CAF006173.D Sample Name: 719129

MSD1 249, EIC=248.7:249.7 (D:\CHEM32\1\DATA\10_2020\CAF006173.D) ES-API, Pos, SIM, Frag: 100

n 400000 o ur in 350000 L -

300000 .412 250000 6 200000 150000 100000 50000 0 2 4 6 8 min MSD1 291, EIC=290.7:291.7 (D:\CHEM32\1\DATA\10_2020\CAF006173.D) ES-API, Pos, SIM, Frag: 100

n ro 2000000 u rox lo h C 1500000 - .517 6 1000000

500000

0 2 4 6 8 min MSD1 242, EIC=241.7:242.7 (D:\CHEM32\1\DATA\10_2020\CAF006173.D) ES-API, Pos, SIM, Frag: 100

n 6000000 ry

Terbut 5000000 + 4000000 etryn Prom 3000000 - .769 4 2000000 1000000 0 2 4 6 8 min MSD1 214, EIC=213.7:214.7 (D:\CHEM32\1\DATA\10_2020\CAF006173.D) ES-API, Pos, SIM, Frag: 100

m 350000 a

300000 rproph lo h C 250000 - 200000 .948 4 150000 100000 50000 0 2 4 6 8 min MSD1 284, EIC=283.7:284.7 (D:\CHEM32\1\DATA\10_2020\CAF006173.D) ES-API, Pos, SIM, Frag: 100

or chl la 1000000 o et M 800000 - .794 600000 7 400000 200000 0 2 4 6 8 min MSD1 287, EIC=286.7:287.7 (D:\CHEM32\1\DATA\10_2020\CAF006173.D) ES-API, Pos, SIM, Frag: 100

te sa

50000 fume o h Et 40000 - .791 30000 7 20000 10000 0 2 4 6 8 min

Instrument 1 11/1/2020 9:54:40 AM Page 4 of 5 Data File D:\CHEM32\1\DATA\10_2020\CAF006173.D Sample Name: 719129

MSD1 265, EIC=264.7:265.7 (D:\CHEM32\1\DATA\10_2020\CAF006173.D) ES-API, Pos, SIM, Frag: 100

600000 ron mu idi h 500000 Et -

.060 400000 2 300000 200000 100000 0 2 4 6 8 min

*** End of Report ***

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