Designation:D520–00(Reapproved2005)
Standard Specification for
Zinc Dust Pigment1
This standard is issued under thefixed designation D520;the number immediately following the designation indicates the year of
original adoption or,in the ca of revision,the year of last revision.A number in parenthes indicates the year of last reapproval.A
superscript epsilon(e)indicates an editorial change since the last revision or reapproval.
1.Scope
1.1This specification covers three types of zinc dust,for u
as a pigment in paints.
1.2The values stated in SI units are to be regarded as the
standard.The values given in parenthes are for information
only.
2.Referenced Documents
2.1ASTM Standards:2
B214Test Method for Sieve Analysis of Metal Powders
D185Test Methods for Coar Particles in Pigments,
Pastes,and Paints
D521Test Methods for Chemical Analysis of Zinc Dust
浅川一中(Metallic Zinc Powder)
E40Test Methods for Chemical Analysis of Slab Zinc
(Spelter)3沈先生顾夫人
3.Composition and Properties
3.1The pigments shall consist substantially of metallic zinc
and shall conform to the requirements for composition pre-
有月的成语scribed in Table1.
3.2In such physical properties as are specified by the purchar,the pigment shall satisfactorily match a reference sample mutually agreed upon between the purchar and the ller.
4.Sampling
4.1Two samples shall be taken at random from different packages from each lot,batch,day’s pack,or other unit of production in a shipment.When no markings distinguishing between units of production appear,samples shall be taken from different packages in the ratio of two samples for each 5000kg(10000lb),except that for shipments of less than 5000kg,two samples shall be taken.At the option of the purchar,the samples may be tested parately or after blending in equal quantities the samples from the same production unit to form a composite sample.
5.Test Methods
5.1Tests shall be conducted in accordance with the follow-ing ASTM test methods.Test procedures not covered by the ASTM test methods shall be mutually agreed upon between the purchar and the ller.
5.1.1Total and Metallic Zinc—Test Methods D521.
5.1.2Lead,Cadmium,and Iron—Sections8,18.2,and22, respectively,of Test Methods E40.
5.1.3Oily or Fatty Matter,or Both—Test Methods D521.
员工安全培训内容5.1.4Coar Particles—Test Method B214or Test Meth-ods D185.
6.Keywords
6.1pigment;zinc
1This specification is under the jurisdiction of ASTM Committee D01on Paint and Related Coatings,Materials,and Applications and is the direct responsibility of Subcommittee D01.31on Pigment Specifications.
Current edition approved May15,2005.Published June2005.Originally approved in1939.Last previous edition approved in2000as D520–00.
2For referenced ASTM standards,visit the ASTM website,www.astm,or contact ASTM Customer Service at rvice@astm.For Annual Book of ASTM Standards volume information,refer to the standard’s Document Summary page on the ASTM website.
3Withdrawn.
TABLE1Requirements for Composition
Type I Type II Type III Total zinc,calculated as Zn,min,%97.598.099.0 Metallic zinc,min,%94.094.096.0 Material other than metallic zinc,ZnO,
and admixed CaO,where applicable
max% Calcium,calculated as CaO,max,%0. Lead,calculated as Pb,max,%...0.010.002 Iron,calculated as Fe,max,%...0.020.002 Cadmium,calculated as Cd,max,%...0.010.001 Chlorine,calculated as Cl,max,%... Sulfur,calculated as SO2,max,%... Moisture and other volatile matter,max,%
0.100.100.10 Oily or fatty matter,or both,max,%... Zinc oxide(ZnO),max,% 6.0remainder remainder Coar particles,max,%:
大学小组名称Total residue retained on a150-µm
(No.100)sieve
牵一只蜗牛去散步none0.10.1
Total residue retained on a75-µm
舅妈的英文(No.200)sieve
...0.80.8
Total residue retained on a45-µm
(No.325)sieve
4.0 3.0 3.0
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精忠报国什么意思
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