ASTM D4627-92(2007)

Standard Test Method for Iron Chip Corrosion for Water-Dilutable Metalworking Fluids

SIGNIFICANCE AND USE
The results obtained by this test are a useful guideline in determining the ability of water diluted metalworking fluids to prevent or minimize rust under specific conditions. There is usually a relationship between the results of this test and a similar ability of the subject coolant to prevent rust on nested parts or in drilled holes containing chips, etc. It must be understood, however, that conditions, metal types, etc. found in practice will not correlate quantitatively with these controlled laboratory conditions. The procedure may not be able to differentiate between two products with poor rust control due to the wide spacing between test dilutions.
SCOPE
1.1 This test method covers evaluation of the ferrous corrosion control characteristics of water-dilutable metalworking fluids.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses re for information only.
This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 30-Apr-2007
• ICS: 75.080 - Petroleum products in general
• ICS: 75.100 - Lubricants, industrial oils and related products
• Technical Committee: D02 - Petroleum Products, Liquid Fuels, and Lubricants
• Drafting Committee: D02.L0.01 - Metal Removal Fluids and Lubricants

Relations

• Replaces: ASTM D4627-92(2002) - Standard Test Method for Iron Chip Corrosion for Water—Dilutable Metalworking Fluids
• Effective Date: 01-May-2007
• Replaced By: ASTM D4627-12 - Standard Test Method for Iron Chip Corrosion for Water–Miscible Metalworking Fluids
• Effective Date: 01-Jun-2012
• Referred By: ASTM E2275-19 - Standard Practice for Evaluating Water-Miscible Metalworking Fluid Bioresistance and Antimicrobial Pesticide Performance
• Effective Date: 01-May-2007

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D4627 − 92(Reapproved 2007)
Standard Test Method for
Iron Chip Corrosion for Water–Dilutable Metalworking
Fluids
This standard is issued under the fixed designation D4627; 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.
1. Scope 4.2 Glass-Fiber Filter Paper, Whatman No. 934-AH,
3.2-cm diameter.
1.1 This test method covers evaluation of the ferrous cor-
rosion control characteristics of water–dilutable metalworking
4.3 Glass Stirring Rod.
fluids.
4.4 Spatula.
1.2 The values stated in SI units are to be regarded as
4.5 Pipettes, 5 mL.
standard. No other units of measurement are included in this
standard.
4.6 Glass Bottle, 4-oz. with cap.
1.3 This standard does not purport to address all of the
4.7 Balance, accurate to 1 mg.
safety concerns, if any, associated with its use. It is the
4.8 Graduated Cylinder, 50 mL.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
4.9 Volumetric Flask,1L.
bility of regulatory limitations prior to use.
4.10 Forceps.
2. Summary of Test Method
4.11 U.S. Standard Sieve, 18-mesh (1.0-mm sieve
2.1 Cast iron chips are placed in a petri dish containing a
openings), stainless steel.
filter paper and diluted metalworking fluid.The dish is covered
and allowed to stand overnight.The amount of rust stain on the
5. Reagents and Materials
filterpaperisanindicationofthecorrosioncontrolprovidedby
5.1 Gray Cast Iron Drilling Chips.
the fluid.
NOTE 1—The chips are made from Class 30 gray cast iron, as cast. The
3. Significance and Use
structure is mostly pearlite with small amounts of ferrite and type A
graphite. Brinell hardness is 179–217. The chips are made using a clean,
3.1 The results obtained by this test are a useful guideline in
oil free jobbers length high speed drill of 29/64 in. diameter with 118°
determining the ability of water diluted metalworking fluids to
plain point, 29° helix and 12–15° clearance. Rotational speed should be
prevent or minimize rust under specific conditions. There is
500 rpm at a feed rate of 0.015 in./rev. Hand feeding is not permissible.
usually a relationship between the results of this test and a
The chips are sieved on 5 and 18-mesh sieves and those retained on the
similar ability of the subject coolant to prevent rust on nested
18-mesh sieve are immediately stored in airtight pint glass bottles. Each
drilling is given a batch number. The bottle labels bear this batch number
parts or in drilled holes containing chips, etc. It must be
and the date of filling.
understood,however,thatconditions,metaltypes,etc.foundin
practice will not correlate quantitatively with these controlled
5.2 Synthetic Hard Water, 20,000 mg/L stock solution pre-
laboratory conditions. The procedure may not be able to
pared by dissolving 29.4 g reagent grade (ACS standard)
differentiate between two products with poor rust control due
CaCl ·2H Oin1Loffreshlyboileddistilledwater.Amoderate
2 2
to the wide spacing between test dilutions.
hardness water is necessary in this test (100 ppm as CaCO ,71
mg/L as chloride), and can be prepared at the time of the test
4. Apparatus
by diluting the stock hard water 0.5 % in distilled water.
4.1 Disposable Petri Dishes, 35 by 10 mm plastic, with lids
5.3 Metalworking Fluid of Interest.
No. 8-757-100A.
This test method is under the jurisdiction of ASTM Committee D02 on
Petroleum Products and Lubricantsand is the direct responsibility of Subcommittee The sole source of supply of the drilling chips known to the committee at this
D02.L0.01 on Metal Removal Fluids and Lubricants. time is Techsolve, Technical Center, 1111 Edison Drive, Cincinnati, OH 45216-
CurrenteditionapprovedMay1,2007.PublishedJuly2007.Originallyapproved 2265. If you are aware of alternative suppliers, please provide this information to
in 1986. Last previous edition approved in 2002 as D4627–92 (2002). DOI: ASTM International Headquarters. Your comments will receive careful consider-
10.1520/D4627-92R07. ation at a meeting of the responsible technical committee, which you may attend.
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D4627 − 92 (2007)
TABLE 1 Replicate Results
REPLICATE RESULTS________ Data________ Program________ Form A
Page__of__
Date____
SAMPLE NUMBER (j)
Instructions:
X is 1st result
X is 2nd result
1 2 345 6 7 8 9 10 2
Sum total labs
m=10
X 5% 10 % 2% 2% 3% >10 %
L 1
Sum total samples
X 5% 10 % 2.5 % 2.5 % 4% 10 %
A n=6
B
X 10 % 7% 3% 3% 4% >10 %
O X 10 % 7% 3% 4% 4% >10 %
R
X 2.5 % 10 % 3% 3% 5% >10 %
A X . . . . . .
T
X 3% 7% 2.5 % 3% 3% >10 %
O X 3% 7% 2.5 % 3%
...