Reference Material Certificate (CRM) MBP1-10, MBP10-100

Reference Material Certificate (CRM)
Barium-titanate glass beads MBP 1-10
Barium-titanate glass beads MBP 10-100

Application Description

This certified reference material (CRM) was produced in accordance with JIS Z 8900-1 “Standards particles — Part 1: Reference particles for calibrating particle size measurements apparatus”, and with APPIE’s management system in compliance with ISO GUIDE 34:2000 and ISO/IEC 17025:2005. This CRM is intended for use in controlling the precision of analysis or confirming the validity of analytical methods or instruments for the determination of particle size distribution using particle sizing instruments such as light scattering method and electro sensing zone method.

Packing/Storage
MBP1-10:
This CRM consists of barium-titanate glass beads with the particle diameter from 1 µm to 10 µm in 3 glass bottles with powder of 1 gram each or in 1 glass bottle with powder of 5 grams.
MBP10-100:
This CRM consists of barium-titanate glass beads with the particle diameter from 10 µm to 100 µm in 3 glass bottles with powder of 1 gram each or in 1 glass bottle with powder of 5 grams.
The CRM is used only under clean conditions and at temperature between 4 ℃ and 30 ℃, shielded from light, and handled gently for splash and dusting prevention. In order to prevent adsorption of moisture in the atmosphere, the caps of the bottle is tightly closed.

Certified Values of MBP1-10
The certified values of count-based particle size distribution for this CRM are given in the following table. The quoted uncertainty is the expanded uncertainty calculated using a coverage factor (k) of 2, which gives a level of confidence of approximately 95 %.

Count-based cumulative undersize
Q0 [ % ]
Particle diameter
x [ µm ]
Expanded uncertainty
Uf,0 [ µm ]
10 1.75 0.15
20 2.05 0.15
30 2.30 0.15
40 2.60 0.15
50 2.85 0.15
60 3.20 0.15
70 3.60 0.16
80 4.15 0.16
90 5.00 0.16

Reference Values of MBP1-10
The reference values of volume-based particle size distribution for this CRM are given in the following table. Those values are obtained as all particles are spherical and the certified value of count-based particle size distribution for this CRM is used as a particle diameter. The quoted uncertainty is the expanded uncertainty calculated using a coverage factor (k) of 2, which gives a level of confidence of approximately 95 %.

Volume-based cumulative undersize
Q3 [ % ]
Particle diameter
x [ µm ]
Expanded uncertainty
Uf,0 [ µm ]
10 2.80 0.15
20 3.35 0.15
30 3.85 0.16
40 4.25 0.16
50 4.70 0.17
60 5.15 0.17
70 5.65 0.17
80 6.15 0.17
90 6.80 0.17

Certified Values of MBP10-100
The certified values of count-based particle size distribution for this CRM are given in the following table. The quoted uncertainty is the expanded uncertainty calculated using a coverage factor (k) of 2, which gives a level of confidence of approximately 95 %.

Count-based cumulative undersize
Q0 [ % ]
Particle diameter
x [ µm ]
Expanded uncertainty
Uf,0 [ µm ]
10 12.0 1.58
20 14.5 1.63
30 16.5 1.71
40 18.5 1.79
50 21.0 1.89
60 23.5 1.99
70 26.5 2.09
80 31.0 2.14
90 37.5 2.11

Reference Values of MBP10-100
The reference values of volume-based particle size distribution for this CRM are given in the following table. Those values are obtained as all particles are spherical and the certified value of count-based particle size distribution for this CRM is used as a particle diameter. The quoted uncertainty is the expanded uncertainty calculated using a coverage factor (k) of 2, which gives a level of confidence of approximately 95 %.

Volume-based cumulative undersize
Q3 [ % ]
Particle diameter
x [ µm ]
Expanded uncertainty
Uf,0 [ µm ]
10 21.0 1.80
20 26.0 1.88
30 30.0 1.89
40 33.5 1.89
50 37.0 1.87
60 40.5 1.82
70 45.0 1.74
80 50.5 1.91
90 60.5 2.45

SEM pictures of MBP1-10 and MBP10-100

MBP10-100 MBP1-10

The above 2-SEM pictures are magnified at 1:10, in order to show the similar apearance of perticle size distribution.

CRM Description
The projected area (Heywood) diameter of a particle was determined by the image analyzed software with the picture taken by a scanning electron microscope (SEM) and the count-based particle size distribution was calculated from Heywood diameters. The diameter for count-based undersize was obtained from the average value of 10 set count-based particle size distribution, where Heywood diameters of 5,000 particles were measured in an each set and the particle size distribution was calculated. In the determination of the certified value, the 2 µm pitch pattern of the NIST traceable magnification reference standard & stage micrometer (MRS-4.1, Geller Microanalytical Laboratory, Boston, MA, USA) was used as the length of particle diameter in SEM pictures, which were taken by the same shooting condition as that of taken the magnification reference standard. The certified value of this CRM is traceable to the International System of Units (SI).

Information
Those characteristic values for this CRM are measured as the following table.

Item of MBP1-10 Measuring method values
Particle density JIS R 3301 4160 kg / m3
Refractive index of particle Liquid immersion method 1.93
Aspect ratio of particle Optical microscope method 955 particles in measured 1,000 particles have 0.91-1.0 aspect ratio.
Item of MBP10-100 Measuring method values
Particle density JIS R 3301 4170 kg / m3
Refractive index of particle Liquid immersion method 1.93
Aspect ratio of particle Optical microscope method 989 particles in measured 1,000 particles have 0.91-1.0 aspect ratio.

Expiration of Certification
This certificate is valid for three years after the date of shipment, provided that the material is stored in accordance with the instructions given in this certificate.

Homogeneity
The homogeneity of this CRM was determined by electrical sensing zone (ESZ) method for 20 bottles taken from 145 bottles. The uncertainty of the particle size distribution was calculated by the average value of 20 set volume-based particle size distribution measured by ESZ. There are no statistical significant variation between the volume-based particle size distribution measured by ESZ and that calculated from the certified count-based particle size distribution This CRM is homogeneous within the uncertainty.

Instruction for Storage
The CRM should be stored at temperature between 4 ℃ and 30 ℃ in the original, tightly closed bottle and shielded from light.

Instruction for Use
The CRM is used only under clean conditions and at temperature between 4 ℃ and 30 ℃, and handled gently for splash and dusting prevention. In order to prevent adsorption of moisture in the atmosphere, the caps of the bottle is tightly closed. When all materials of the CRM in the bottle is not used, care must be taken to the sampling procedure after stirring and mixing for the homogeneity of the powder in the bottle. The method of quartering sampling or the reduced sampling by the divider should be considered if the very accurate particle size distribution is needed.

Precautions for Handling
The CRM is handled according to the safety data sheet (SDS). If the CRM comes into contact with the eyes, flush with a large amount of running water. If the CRM comes into contact with skin, flush with running water. If the CRM leaks, clean using wet paper or cloth if necessary. When dispose of the CRM, handle it gently for splash and dusting prevention and according to the relevant laws.

Preparation Method
This barium-titanate glass beads were prepared by UNION Co., Ltd., Hirakata, Japan.

Producer and Analyst
The technical and production management are provided by the APPIE’s Committee of Standard Powders. Analyst of scanning electron microscope and uncertainty evaluation is Professor Hideto Yoshida (Graduate School of Engineering, Hiroshima University).

Price

Price list of JIS Test Powder Barium-titanate glass beads

Classification Package Price (JPY)
Barium-titanate glass beads MBP 1-10 1g×3 18,000
approx 1g
3 vials bottle
Barium-titanate glass beads MBP 10-100 1g×3 18,000
approx 1g
3 vials bottle
Barium-titanate glass beads MBP 1-10 5g×1 22,000
approx 5g
1 vial bottle
Barium-titanate glass beads MBP 10-100 5g×1 22,000
approx 5g
1 vial bottle