23·06·05-NITE-016
2 0 2 3 - 1 0 - 2 3

Certificate of Accreditation
International Accreditation Japan (IAJapan) hereby accredits the following
conformity assessment body as a calibration laboratory of Japan Calibration
Service System.
Accreditation Identification: JCSS 0014 Calibration

Name of Conformity Assessment Body: Soka Factory, Kanto Chemical Co., Inc.

Y

Name of Legal Entity: Kanto Chemical Co., Inc.

Location of Conformity Assessment Body: 1-7-1 Inari, Soka-shi, Saitama 340-0003, JAPANCOP

Scope of Accreditation: Concentration (as the following pages)
Accreditation Requirement: ISO/IEC 17025:2017** The relevant accreditation requirements described in the Accreditation
Scheme Document for JCSS are also applied.

Effective Date of Accreditation: 2023-10-25

Expiry Date of Accreditation: 2027-10-24
Date of Initial Accreditation: 2005-12-26

SAITO Kazunori
Chief Executive, International Accreditation Japan (IAJapan)
National Institute of Technology and Evaluation- International Accreditation Japan (IAJapan) is a laboratory accreditation body which has signed MRAs ofILAC (International Laboratory
Accreditation Cooperation) and APAC (Asia Pacific Accreditation Cooperation).
- MRA requirements are, in addition to relevant international standards and guides, requirements for participation in proficiency testing
programs, surveillance and reassessment, and the policy for the traceability of measurement for MRA purpose.
- This laboratory fulfills ISO/IEC 17025:2017 General requirements for the competence of testing and calibration laboratories. This
accreditation means this laboratory meets both the technical competence requirements and management system requirements that arenecessary for it to consistently deliver technically valid test results and calibrations (refer to joint ISO-ILAC-IAF Communique dated April2017).
- The latest accreditation information is publicly available on IAJapan Website as an accreditation certificate.

23·06·05-NITE-016
2 0 2 3 - 1 0 - 2 3

Certificate of Accreditation
International Accreditation Japan (IAJapan) hereby accredits the following
conformity assessment body as a Reference Material Producer of Japan
Calibration Service System.
Accreditation Identification: JCSS 0014 RMP

Name of Conformity Assessment Body: Soka Factory, Kanto Chemical Co., Inc.

Y

Name of Legal Entity: Kanto Chemical Co., Inc.

Location of Conformity Assessment Body: 1-7-1 Inari, Soka-shi, Saitama 340-0003, JAPANCOP

Scope of Accreditation: Concentration (as the following pages)
Accreditation Requirement: ISO 17034:2016** The relevant accreditation requirements described in the Accreditation
Scheme Document for JCSS-RMP are also applied.

Effective Date of Accreditation: 2023-10-25

Expiry Date of Accreditation: 2027-10-24
Date of Initial Accreditation: 2008-11-06

SAITO Kazunori
Chief Executive, International Accreditation Japan (IAJapan)
National Institute of Technology and Evaluation- International Accreditation Japan (IAJapan) is a laboratory accreditation body which has signed MRAs ofILAC (International Laboratory
Accreditation Cooperation) and APAC (Asia Pacific Accreditation Cooperation).
- MRA requirements are, in addition to relevant international standards and guides, requirements for participation in proficiency testing
programs, surveillance and reassessment, and the policy for the traceability of measurement for MRA purpose.
- This accreditation demonstrates technical competence for a defined scope and the operation of a laboratory quality management system inaccordance with the recognized International Standard ISO 17034:2016.
- The latest accreditation information is publicly available on IAJapan Website as an accreditation certificate.

Attachment< Calibration Laboratory >General Field of Calibration: Concentration
Date oflnitial Accreditation of the Field: 2005-12-26
Laboratory's permanent facility/On-site Calibration: Laboratory's permanent facility
Calibration and Measurement Capabilities

Lead standard solution
Iron standard solution
Chromium standard solution
Arsenic standard solution

100mg/L
100mg/L

0.7%

1000mg/L

0.4%

100mg/L

0.9%

1000mg/L

0.4%

100mg/L

0.7%

1000mg/L

0.4%

100mg/L

0.7%

1000mg/L

0.5%

100mg/L

0.8%

1000mg/L

0.6%100mg/L

0.7%

1000mg/L

0.4%

100mg/L

0.6%

1000mg/L

0.4%

100mg/L

0.6%

1000mg/L

0.4%

CO
P

Manganese standard solution

1000mg/L

Expanded Uncertainty*(Level of Confidence
Approximately 95 %)
0.7%
0.5%

Range

Y

Calibration Procedures# andType of Instruments/Materials
to be calibrated
Standard
Copper standard solution
solutions
except pH
Zinc standard solution
Standard
solutionsCadmium standard solution

Nickel standard solution
Cobalt standard solution

Bismuth standard solution

Antimony standard solution

100mg/L

1.0%

1000mg/L

0.4%

100mg/L

0.9%

1000mg/L

0.6%100mg/L

0.8%

1000mg/L

0.5%

Aluminum standard solution

1000mg/L

0.5%

Calcium standard solution

1000mg/L

0.5%

Potassium standard solution

1000mg/L

0.6%

Magnesium standard solution

1000mg/L

0.7%

Sodium standard solution

1000mg/L

0.6%

Chloride ion standard solution

1000mg/L

0.4%

Fluoride ion standard

1000mg/L

0.5%

From 100 mg/L up to 1000 mg/L

0.7%3280mg/L

0.7%

From 100 mg/L up to 1000 mg/L

0.7%4430mg/L

0.6%

1000mg/L

0.6%3070mg/L

0.7%

1000mg/L

0.6%

From 100 mg/L up to 1000 mg/L

0.7%1280mg/L

0.6%

1000mg/L

0.8%

Nitrite ion standard solution
Nitrate ion standard solution
Phosphate ion standard solution
Sulfate ion standard solution
Ammonium ion standard solution
Mercury standard solution

2023/10/23 JCSS0014 1/10

Attachment

Barium standard solution

1000mg/L

0.7%

Bromide ion standard solution

1000mg/L

0.6%

Lithium standard solution

1000mg/L

0.6%

Molybdenum standard solution

1000mg/L

0.8%

Rubidium standard solution

1000mg/L

0.5%

Selenium standard solution

1000mg/L

1.3 %Tin standard solution

1000mg/L

0.8%

Strontium standard solution

1000mg/L

0.4%

Thallium standard solution

1000mg/L

0.9%

1000mg/L

0.4%

1000mg/L

0.6%

Gallium standard solution

1000mg/L

0.5%

Indium standard solution

1000mg/L

0.5%

Tellurium standard solution

1000mg/L

1.6%

Vanadium standard solution

1000mg/L

0.6%

Formaldehyde standard solution

1000mg/L

4.0%

Cyanide ion standard solution

1000mg/L

3.4%

Chlorate ion standard solution

1000mg/L

0.7%

Bromate ion standard solution

2000mg/L

0.7%

Total organic carbon standard solution
Silver standard solution
Chlorite ion standard solution
Heptaoxyethylene dodecyl ether solution

Y

Boron standard solution
Cesium standard solution

COP

Standard
solutions
except pH
Standard
solutions

Beryllium standard solution
Silicon standard solution

Zirconium standard solution

1000mg/L

0.5%

1000mg/L

0.7%

1000mg/L

1.8%

100mg/L

4.2%

1000 mg/L
1000 mg/L
1000 mg/L

0.5%
1.5 %
0.4%

2023/10/23 JCSS0014 2/10

Attachment

23 VOC mixture standard solution** Any combination of constituents listed as below can be supplied.
1, 1-Dichloroethylene

1000mg/L

2.0%

Dichloromethane

1000mg/L

1.0%

trans-1,2- Dichloroethylene
cis-1,2-Dichloroethylene
Chloroform

1000mg/L

1.2%

1000mg/L

0.9%

1000mg/L

0.9%

1, 1, 1-Trichloroethane
Carbon tetrachloride

1000mg/L

0.9%

1000mg/L

1.0%

Benzene1000mg/L

1.0%

1,2-Dichloroethane

1000mg/L

0.9%

Trichloroethylene

1000mg/L

0.9%

1,2-Dichloropropane

1000mg/L

0.8%

Bromodichloromethanecis- l ,3- Dichrolopropene
Toluene1000mg/L

0.9%

1000mg/L

3.5%
0.9%

1000mg/L

4.7%

1, 1,2-Trichloroethane

1000mg/L

1.0%

Tetrachloroethylene

1000mg/L

0.9%

Dibromochloromethane

1000mg/L

1.0%

1000mg/L

1.0%

p-Xylene
m-Xyleneo-XyleneY

1000mg/L

trans-1,3-Dichrolopropene

COP

Standard
solutions
except pH
Standard
solutions

1000mg/L

1.0%

1000mg/L

0.8%

Tribromomethane

1000mg/L

1.2 %1,4-Dichlorobenzene

1000mg/L

0.9%

2023/10/23 JCSS0014 3/10

Attachment

25 VOC mixture standard solution** Any combination of constituents listed as below can be supplied.
1, 1-Dichloroethylene
Dichloromethanetrans- l ,2- Dichloroethylene
tert-Butyl methyl ether
cis-1,2-Dichloroethylene
Chloroform
1, 1, 1-Trichloroethane
Carbon tetrachloride
Benzene
1,2-Dichloroethane
Trichloroethylene
1,2-Dichloropropane
1,4-dioxane
Bromodichloromethanecis- l ,3- Dichrolopropene
Toluene1, 1,2-Trichloroethane
Tetrachloroethylene
Dibromochloromethane
p-Xylene
m-Xyleneo-Xylene
Tribromomethane
1,4-Dichlorobenzene
14 metal mixture standard solution
Aluminum
Arsenic
Boron
Calcium
Cadmium
Chromium
CopperIron
Magnesium
Manganese
SodiumLead
Selenium
Zinc

1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L

1.6%
1.1%
1.2%
0.8%
0.9%
1.0%
1.0%
1.3 %
1.0%
0.9%
1.0%
0.9%
2.5%
1.0%
3.2%
0.9%
4.5%
1.0%
1.0%
1.1%
0.9%
0.9%
1.0%
1.1%
1.1%

100mg/L
10mg/L
100mg/L
100mg/L
5mg/L
10mg/L
100mg/L
100mg/L
100mg/L
10mg/L
100mg/L
10mg/L
10mg/L
100mg/L

1.8%
1.9%
1.8%
2.1 %
1.8%
1.9%
1.9%
1.8%
1.8%
2.0%
2.0%
1.9%
2.2%
2.8%

Y

trans-1,3-Dichrolopropene

COP

Standard
solutions
except pH
Standard
solutions

2023/10/23 JCSS0014 4/10

Attachment

6 phenols mixture standard solution
2-Chlorophenol
Phenol
2,6-Dichlorophenol
2,4-Dichlorophenol
2,4,6-Trichlorophenol
4-Chlorophenol
2 Musty odour substance mixture standard solution

1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L

PY

Standard
solutions
except pH
Standard
solutionsCO

2-Methylisobomeol
Geosmin
4 Haloacetic acid mixture standard solution
Chloroacetic acid
Bromoacetic acid
Dichloroacetic acid
Trichloroacetic acid

1.8 %
1.9%
2.0%
2.0%
2.1 %
2.0%

100mg/L
100mg/L

2.6%
2.5%

1000mg/L
1000mg/L
1000mg/L
1000mg/L

2.3 %
2.6%
2.7%
2.6%

#All Calibration Procedures are in-house procedures developed by this laboratory.
* relative value

2023/10/23 JCSS0014 5/10

Attachment< Reference Material Producer >Category: Concentration
Date oflnitial Accreditation of the Field: 2008-11-06
Type: Certified Reference Material
The Approach Used to Assign Property Values: Measurement by a Single Method in a Single Laboratory aso 17034:2016
7.12.3 NOTE 1 d))

Copper standard solution
Zinc standard solution
Cadmium standard solution
Lead standard solution
Iron standard solution
Chromium standard solution
Arsenic standard solution
Manganese standard solution
Nickel standard solution

100mg/L
1000mg/L
100mg/L
1000mg/L
100mg/L
1000mg/L
100mg/L
1000mg/L
100mg/L
1000mg/L
100mg/L
1000mg/L
100mg/L
1000mg/L
100mg/L
1000mg/L
100mg/L
1000mg/L
100mg/L
1000mg/L
100mg/L
1000mg/L
100mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
From 100 mg/L up
to 1000mg/L
3280mg/L
From 100 mg/L up
to 1000mg/L
4430mg/L

COP

Standard
solutions
except pH
Standard
solutions

Range

Y

Sub-category and Property

Expanded Uncertainty* 1(Level of Confidence
Approximately 95 %)
0.7%
0.5%
0.7%
0.4%
0.9%
0.4%
0.7%
0.4%
0.7%
0.5%
0.8%
0.6%
0.7%
0.4%
0.6%
0.4%
0.6%
0.4%
1.0%
0.4%
0.9%
0.6%
0.8%
0.5%
0.5%
0.5%
0.6%
0.7%
0.6%
0.4%
0.5%

Cobalt standard solution

Bismuth standard solution

Antimony standard solution

Aluminum standard solution
Calcium standard solution
Potassium standard solution
Magnesium standard solution
Sodium standard solution
Chloride ion standard solution
Fluoride ion standard
Nitrite ion standard solution

Nitrate ion standard solution

0.7%

Characterization
Techniques*2
Titration
Titration
Titration
Titration
Titration
Titration
Titration
Titration
Titration
Titration
Titration
Titration
Titration
Titration
IC
Titration
IC
Titration
Titration
IC

0.7%
0.7%

IC

0.6%

2023/10/23 JCSS0014 6/10

Attachment

Sulfate ion standard solution
Ammonium ion standard
solution
Mercury standard solution
Barium standard solution
Bromide ion standard solution
Lithium standard solution
Molybdenum standard solution
Rubidium standard solution
Selenium standard solution
Tin standard solution
Strontium standard solution
Thallium standard solution
Boron standard solution
Cesium standard solution
Gallium standard solution
Indium standard solution
Tellurium standard solution
Vanadium standard solution
Formaldehyde standard solution
Cyanide ion standard solution
Chlorate ion standard solution
Bromate ion standard solution
Total organic carbon standard
solution
Silver standard solution
Chlorite ion standard solution
Heptaoxyethylene dodecyl ether
solution
Beryllium standard solution
Silicon standard solution
Zirconium standard solution

0.6%
0.7%
0.6%

1000mg/L
3070mg/L
1000mg/L
From 100 mg/L
up to 1000 mg/L
1280 mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
2000mg/L
1000mg/L

0.6%
0.8%
0.7%
0.6%
0.6%
0.8%
0.5%
1.3%
0.8%
0.4%
0.9%
0.4%
0.6%
0.5%
0.5%
1.6%
0.6%
4.0%
3.4%
0.7%
0.7%
0.5%

1000mg/L
1000mg/L
100mg/L

0.7%
1.8%
4.2%

Titration
IC

1000 mg/L
1000 mg/L
1000 mg/L

0.5%
1.5 %
0.4%

IC
IC
Titration

0.7%

Y

Phosphate ion standard solution

COP

Standard
solutions
except pH
Standard
solutions

Titration
IC
Titration
Titration
Titration
Titration
IC
Titration
IC
Titration
Titration
Titration
Titration
Titration
IC
Titration
Titration
Titration
Titration
GC
Titration
IC
IC
HPLC

HPLC

2023/10/23 JCSS0014 7/10

Attachment

23 VOC mixture standard solution** Any combination of constituents listed as below can be supplied.

trans-1,3-Dichrolopropene

1, 1,2-Trichloroethane
Tetrachloroethylene
Dibromochloromethane
p-Xylene
m-Xyleneo-Xylene
Tribromomethane
1,4-Dichlorobenzene

1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L

2.0%
1.0%
1.2 %
0.9%
0.9%
0.9%
1.0%
1.0%
0.9%
0.9%
0.8%
0.9%
3.5%
0.9%
4.7%
1.0%
0.9%
1.0%
1.0%
1.0%
0.8%
1.2 %
0.9%

GC

Y

1, 1-Dichloroethylene
Dichloromethanetrans-1,2- Dichloroethylene
cis-1,2-Dichloroethylene
Chloroform
1, 1, 1-Trichloroethane
Carbon tetrachloride
Benzene
1,2-Dichloroethane
Trichloroethylene
1,2-Dichloropropane
Bromodichloromethanecis-1,3- Dichrolopropene
TolueneCOP

Standard
solutions
except pH
Standard
solutions

2023/10/23 JCSS0014 8/10

Attachment

25 VOC mixture standard solution** Any combination of constituents listed as below can be supplied.

trans-1,3-Dichrolopropene

1, 1,2-Trichloroethane
Tetrachloroethylene
Dibromochloromethane
p-Xylene
m-Xyleneo-Xylene
Tribromomethane
1,4-Dichlorobenzene
14 metal mixture standard solution
Aluminum
Arsenic
Boron
Calcium
Cadmium
Chromium
CopperIron
Magnesium
Manganese
SodiumLead
Selenium
Zinc

1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L
1000mg/L

1.6%
1.1%
1.2 %
0.8%
0.9%
1.0%
1.0%
1.3 %
1.0%
0.9%
1.0%
0.9%
2.5%
1.0%
3.2%
0.9%
4.5%
1.0%
1.0%
1.1%
0.9%
0.9%
1.0%
1.1%
1.1%

GC

100mg/L
10mg/L
100mg/L
100mg/L
5mg/L
10mg/L
100mg/L
100mg/L
100mg/L
10mg/L
100mg/L
10mg/L
10mg/L
100mg/L

1.8%
1.9%
1.8%
2.1 %
1.8%
1.9%
1.9%
1.8%
1.8%
2.0%
2.0%
1.9%
2.2%
2.8%

ICP-OESY

1, 1-Dichloroethylene
Dichloromethanetrans- l ,2- Dichloroethylene
tert-Butyl methyl ether
cis-1,2-Dichloroethylene
Chloroform
1, 1, 1-Trichloroethane
Carbon tetrachloride
Benzene
1,2-Dichloroethane
Trichloroethylene
1,2-Dichloropropane
1,4-dioxane
Bromodichloromethanecis-1,3- Dichrolopropene
TolueneCOP

Standard
solutions
except pH
Standard
solutions

2023/10/23 JCSS0014 9/10

Attachment

6 phenols mixture standard solution
2-Chlorophenol

1000mg/L

1.8%

Phenol1000mg/L

1.9%

2,6-Dichlorophenol

1000mg/L

2.0%

2,4-Dichlorophenol

1000mg/L

2.0%

2,4,6-Trichlorophenol

1000mg/L

2.1 %

4-Chlorophenol

1000mg/L

2.0%

PY

Standard
solutions
except pH
Standard
solutions

2 Musty odor substance mixture standard solution
2-Methylisobomeol
100mg/L
Geosmin

100mg/L

GC

2.6%
2.5%

GC

4 Haloacetic acid mixture standard solution
Chloroacetic acid
Bromoacetic acid
Trichloroacetic acid* 1 relative value

2.3 %1000mg/L

2.6%

1000mg/L

2.7%

1000mg/L

2.6%

CO

Dichloroacetic acid

1000mg/L

HPLC*2 IC: Ion chromatography
GC: Gas chromatography
ICP-OES: Inductivity coupled plasma-optical emission spectroscopy
HPLC: High-performance liquid chromatography2023/10/23 JCSS00 14 10/10

PL
E

M

SA

23･05･29-NITE-009
2 0 2 3 - 1 0 - 2 4

Certificate of Accreditation
International Accreditation Japan (IAJapan) hereby accredits the following
conformity assessment body as a calibration laboratory of Japan Calibration
Service System.
Accreditation Identification: JCSS 0015 Calibration
Name of Conformity Assessment Body: Isehara Factory, Kanto Chemical Co., Inc.

COPY

Name of Legal Entity: Kanto Chemical Co., Inc.
Location of Conformity Assessment Body: 21 Suzukawa, Isehara-shi, Kanagawa 259-1146, JAPAN
Scope of Accreditation: Concentration(as the following pages)
Accreditation Requirement: ISO/IEC 17025:2017** The relevant accreditation requirements described in the Accreditation
Scheme Document for JCSS are also applied.

Effective Date of Accreditation: 2023-10-25
Expiry Date of Accreditation: 2027-10-24
Date of Initial Accreditation: 2005-12-26

SAITO Kazunori
Chief Executive, International Accreditation Japan (IAJapan)
National Institute of Technology and Evaluation- International Accreditation Japan (IAJapan) is a laboratory accreditation body which has signed MRAs of ILAC (International Laboratory
Accreditation Cooperation) and APAC (Asia Pacific Accreditation Cooperation).
- MRA requirements are, in addition to relevant international standards and guides, requirements for participation in proficiency testing
programs, surveillance and reassessment, and the policy for the traceability of measurement for MRA purpose.
- This laboratory fulfills ISO/IEC 17025:2017 General requirements for the competence of testing and calibration laboratories. This
accreditation means this laboratory meets both the technical competence requirements and management system requirements that arenecessary for it to consistently deliver technically valid test results and calibrations (refer to joint ISO-ILAC-IAF Communiqué dated April2017).
- The latest accreditation information is publicly available on IAJapan Website as an accreditation certificate.

23･05･29-NITE-009
2 0 2 3 - 1 0 - 2 4

Certificate of Accreditation
International Accreditation Japan (IAJapan) hereby accredits the following
conformity assessment body as a Reference Material Producer of Japan
Calibration Service System.
Accreditation Identification: JCSS 0015 RMP
Name of Conformity Assessment Body: Isehara Factory, Kanto Chemical Co., Inc.

COPY

Name of Legal Entity: Kanto Chemical Co., Inc.
Location of Conformity Assessment Body : 21 Suzukawa, Isehara-shi, Kanagawa 259-1146, JAPAN
Scope of Accreditation: Concentration(as the following pages)
Accreditation Requirement: ISO 17034:2016** The relevant accreditation requirements described in the Accreditation
Scheme Document for JCSS-RMP are also applied.

Effective Date of Accreditation: 2023-10-25
Expiry Date of Accreditation: 2027-10-24
Date of Initial Accreditation: 2009-01-29

SAITO Kazunori
Chief Executive, International Accreditation Japan (IAJapan)
National Institute of Technology and Evaluation- International Accreditation Japan (IAJapan) is a laboratory accreditation body which has signed MRAs of ILAC (International Laboratory
Accreditation Cooperation) and APAC (Asia Pacific Accreditation Cooperation).
- MRA requirements are, in addition to relevant international standards and guides, requirements for participation in proficiency testing
programs, surveillance and reassessment, and the policy for the traceability of measurement for MRA purpose.
- This accreditation demonstrates technical competence for a defined scope and the operation of a laboratory quality management system inaccordance with the recognized International Standard ISO 17034:2016.
- The latest accreditation information is publicly available on IAJapan Website as an accreditation certificate.

Attachment< Calibration Laboratory >General Field of Calibration: Concentration
Date of Initial Accreditation of the Field: 2005-12-26
Laboratory’s permanent facility/On-site Calibration: Laboratory’s permanent facility
Calibration and Measurement Capabilities
Calibration Procedures# andType of Instruments/Materials
to be calibrated
pH Standard Solutions Oxalate pH standard solution

1.679

Expanded Uncertainty(Level of Confidence
Approximately 95 %)0.005

Phthalate pH standard solution

4.008

0.005

Phosphate equimolal pH standard solution

6.865

0.005

Phosphate pH standard solution

7.413

0.006

Tetraborate pH standard solution

9.180

0.005

Carbonate pH standard solution

10.012

0.006

Range

#All Calibration Procedures are in-house procedures developed by this laboratory.

COPY< Reference Material Producer >Category: Concentration
Date of Initial Accreditation of the Field: 2009-01-29
Type: Certified Reference Material
The Approach Used to Assign a Property Value: Measurement by a Single Method in a Single Laboratory (ISO 17034:2016
7.12.3 NOTE 1 d))

pH Standard Solutions Oxalate pH standard solution

1.679

Expanded Uncertainty(Level of Confidence
Approximately 95 %)0.005

Phthalate pH standard solution

4.008

0.005

Phosphate equimolal pH standard solution

6.865

0.005

Phosphate pH standard solution

7.413

0.007

Tetraborate pH standard solution

9.180

0.008

Carbonate pH standard solution

10.0120.012

Sub-category and Property

Range

Characterization
Techniques

Glass electrodemethod2023/10/24 JCSS0015 1/1

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