оксид цинка
Test items Indirect method Direct method
Zinc oxide(counted by dried substances )% ≥ 99.7 99.5
Metal ( Zn ) % ≤ None None
Lead oxide( Pb ) % ≤ 0.037 0.12
Manganese oxide ( Mn) % ≤ 0.0001 0.0002
Cupric oxide ( Cu ) % ≤ 0.0002 0.006
Burning decrement % ≤ 0.2 0.4
105℃ volatile substances % ≤ 0.3 0.4
Water dissoluble % ≤ 0.1 0.4
Hydrochloric indissoluble substance % ≤ 0.006 0.03
Sieve Residue % ≤ 0.1 0.28
Lead oxide(PbO) % ≤ -- 0.12
Package: woven bag, inner with plastic bag.25KG/bag
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Стеклянныхчешуек |
一、Ingredients:
Acid alkali glass.
二、Performance:
1、Anti-corrosion medium penetration.
2、Improve the mechanical strength.
3、Lower lining c... |
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Износостойкий стальной шар |
Forged grinding steel balls
Size Surface Core
DIA 40-60 mm HRC60-64 HRC59-63
DIA 70-80 mm HRC60-64 HRC58-62
DIA 90-100 mm HRC60-64 HRC57-6... |
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Цинковый купорос |
Testing Items monohydrate heptahydrate
Appearance White powder --
Zinc Sulphate content % ≥ 96.09 99
Zn % ≥ 35 22.51
Pb % ≤ 0.001 0.00... |
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Калия бихромат |
Item Index
Potassium dichromate (K2Cr2o7) % ≥ 99.7
Chlorides (Cl)% ≤ 0.05
Insoluble ≤ 0.02
Sulfates ( SO4-2) % ≤ 0.02
Na+ % ≤ 0... |
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Метилен хлористый (метиленхлорид, метилен хлорид) |
检测项目 指标
二氯甲烷 % ≥ 99.95
水 % ≤ 0.01
酸(以HCl计) % ≤ 0.0004
色度 Hazen单位 (Pt-Co色号) ≤ 10
蒸发残渣 % ≤ 0.0005
添加稳定剂的量不计入二氯甲烷的质量分数。
包装:净重为... |
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