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Ct & Vt Accuracy Measurement Testing System

Supplier From China
Dec-26-19

--General Type
1.Measure item: Ratio Error and Phase Error of the CT& PT

2.Complying with ANSI / IEEE C57.13 Standard or IEC 60044-1 Standard (According to the User`s requirements)

3.Testing system included:
ï?·HES Series Control Bench 
ï?·HES-1C Series Transformer Tester
ï?·FY Series Current Transformer Burden
ï?·HLS Series Standard Current Transformer (with Current Source) 
ï?·FY Series Voltage Transformer Burden
ï?·HJS Seires Standard Voltage Transformer (with Voltage Source)
ï?·High Current Testing Cables
ï?·Secondary Testing Cables of the CT&VT

Price and Minimum Quantity

Price: $1
MOQ: Not Specified

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Other name: Synonyms: Sodium Hydrosulphite; Sodium Dithionite; Dithionous acid, Disodium salt; Sodium Sulfoxylate
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Molecular Weight: 174.10
Chemical Formula: Na2S2O4

Product Description
Appearance: White, crystalline powder.

Product Feature
Odor: Slight irritative.
Specific Gravity: Unavailable
Solubility: Soluble in water.
Density: 2.19
pH: 6-7
pH Test-Method: PH test paper.
% Volatiles by volume @ 21C (70F): 0
Boiling Point: Not applicable.
Melting Point: >300 C Decomposes.
Vapor Pressure (mm Hg): No information found.
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Evaporation Rate (BuAc=1): No information found.

Application
1. Widely used in textile industry for vat dyeing, reduction cleaning, printing and stripping, textile textile bleaching .
2. bleaching paper pulps , especially mechanical pulps, its the most fittable bleaching agent in pulps.
3. bleaching kaolin clay, fur bleaching and reductive whitening, bleaching of bamboo products and straw products,
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Product Specification/Models
NDEX 90%, 88%, 85%. FOOD ADDITIVE
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Molecular Formula: NaHSO3
Molecular Weight: 104.06

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Quality Standard: HG/T3492-80
Technical Indicator High-purity grade Acrylic grade Food grade Refined grade Industrial grade 1
NaHSO3 % 99.5
Insol. in water % 0.003, 0.005, 0.03, 0.04, 0.05
Chloride(Cl) % 0.003, 0.004
Iron(Fe) % 0.001 0.002 0.005
Heavy metal(Pb) 0.001
Arsenic(As) % 0.0001
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Chloride (as Cl), % by weight 0.20(maximum)
Sulphates (as SO4),% by weight 0.10(maximum)
Iron (as Fe), % by weight 0.004(maximum)
Nonvolatile matter, % by weight 0.10(maximum)
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