ASTM C375-58(2016)

Standard Classification of Water Used in Milling of Porcelain Enamel

ABSTRACT
This classification covers water used in the milling of porcelain enamel frit. Three classes of water are covered: For porcelain enamel frits, Class A water should cause no difficulties in the production of a high quality finish. Class B water may be used by slight compensations in processing. Mill addition water falling into Class C should be treated before use in order to preclude faulty enamel production. For analysis, the following elements and properties shall be determined: sampling, bicarbonate, calcium & magnesium, chloride, hardness, iron, manganese, pH, sulfate, and total solids.
SCOPE
1.1 This classification covers water used in the milling of porcelain enamel frit.

General Information

• Status: Historical
• Publication Date: 31-Oct-2016
• ICS: 25.220.50 - Enamels
• Technical Committee: B08 - Metallic and Inorganic Coatings
• Drafting Committee: B08.12 - Materials for Porcelain Enamel and Ceramic-Metal Systems

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:C375 −58(Reapproved 2016)
Standard Classification of
Water Used in Milling of Porcelain Enamel
This standard is issued under the fixed designation C375; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
INTRODUCTION
This standard sets forth Class A, B, and C categories for water used for milling porcelain enamel
based on the concentrations of allowable contaminates and the quality requirements of the fired finish.
1. Scope in Water (Withdrawn 1989)
D3370 Practices for Sampling Water from Closed Conduits
1.1 This classification covers water used in the milling of
porcelain enamel frit.
3. Classification
3.1 Three classes of water are covered, based on the
2. Referenced Documents
Table 1. For porce-
maximum impurity analyses as defined in
2.1 ASTM Standards:
lain enamel frits, Class A water should cause no difficulties in
D511 Test Methods for Calcium and Magnesium In Water
the production of a high quality finish. Class B water may be
D512 Test Methods for Chloride Ion In Water
used by slight compensations in processing. Mill addition
D513 Test Methods for Total and Dissolved Carbon Dioxide
water falling into Class C should be treated before use in order
in Water
to preclude faulty enamel production.
D516 Test Method for Sulfate Ion in Water
D858 Test Methods for Manganese in Water
4. Methods of Analysis
D1068 Test Methods for Iron in Water
4.1 Determine the elements and properties listed in Table 1
D1126 Test Method for Hardness in Water
in accordance with the following ASTM methods:
D1293 Test Methods for pH of Water
4.1.1 Sampling—Practice D3370.
D1888 MethodsOfTestforParticulateandDissolvedMatter
4.1.2 Bicarbonate—Test Method D513.
4.1.3 Calcium and Magnesium—Test Method D511.
4.1.4 Chloride—Test Method D512.
4.1.5 Hardness—Test Method D1126.
4.1.6 Iron—Test Method D1068.
This classification is under the jurisdiction of ASTM Committee B08 on
Metallic and Inorganic Coatingsand is the direct responsibility of Subcommittee
4.1.7 Manganese—Test Method D858.
B08.12 on Materials for Porcelain Enamel and Ceramic-Metal Systems.
4.1.8 pH—Test Method D1293.
Current edition approved Nov. 1, 2016. Published November 2016. O
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
´1
Designation: C375 − 58 (Reapproved 2011) C375 − 58 (Reapproved 2016)
Standard Classification of
Water Used in Milling of Porcelain Enamel
This standard is issued under the fixed designation C375; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
ε NOTE—Standard was editorially corrected in April 2011
INTRODUCTION
This standard sets forth Class A, B, and C categories for water used for milling porcelain enamel
based on the concentrations of allowable contaminates and the quality requirements of the fired finish.
1. Scope
1.1 This classification covers water used in the milling of porcelain enamel frit.
2. Referenced Documents
2.1 ASTM Standards:
D511 Test Methods for Calcium and Magnesium In Water
D512 Test Methods for Chloride Ion In Water
D513 Test Methods for Total and Dissolved Carbon Dioxide in Water
D516 Test Method for Sulfate Ion in Water
D858 Test Methods for Manganese in Water
D1068 Test Methods for Iron in Water
D1126 Test Method for Hardness in Water
D1293 Test Methods for pH of Water
D1888 Methods Of Test for Particulate and Dissolved Matter in Water (Withdrawn 1989)
D3370 Practices for Sampling Water from Closed Conduits
3. Classification
3.1 Three classes of water are covered, based on the maximum impurity analyses as defined in Table 1. For porcelain enamel
frits, Class A water should cause no difficulties in the production of a high quality finish. Class B water may be used by slight
compensations in processing. Mill addition water falling into Class C should be treated before use in order to preclude faulty
enamel production.
4. Methods of Analysis
4.1 Determine the elements and properties listed in Table 1 in accordance with the following ASTM methods:
4.1.1 Sampling—Practice D3370.
4.1.2 Bicarbonate—Test Method D513.
4.1.3 Calcium and Magnesium—Test Method D511.
4.1.4 Chloride—Test Method D512.
4.1.5 Hardness—Test Method D1126.
4.1.6 Iron—Test Method D1068.
4.1.7 Manganese—Test Method D858.
This classification is under the jurisdiction of ASTM Committee B08 on Metallic and Inorganic Coatingsand is the direct responsibility of Subcommittee B08.12 on
Mate
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