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GB/T 14415-2007: Water for industrial circulating cooling system and boiler -- Determination of solids matter
Status: Valid GB/T 14415: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 14415-2007 | English | 139 |
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Water for industrial circulating cooling system and boiler -- Determination of solids matter
| Valid |
GB/T 14415-2007
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| GB/T 14415-1993 | English | 239 |
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Analysis of water used in boiler and cooling system. Determination of solids matter
| Obsolete |
GB/T 14415-1993
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PDF similar to GB/T 14415-2007
Basic data | Standard ID | GB/T 14415-2007 (GB/T14415-2007) | | Description (Translated English) | Water for industrial circulating cooling system and boiler -- Determination of solids matter | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G76 | | Classification of International Standard | 71.040.40 | | Word Count Estimation | 5,558 | | Date of Issue | 2007-08-13 | | Date of Implementation | 2008-02-01 | | Older Standard (superseded by this standard) | GB/T 15893.4-1995; GB/T 14415-1993 | | Quoted Standard | GB/T 6903 | | Regulation (derived from) | China National Standard Approval Announcement2007 No.8 (Total No.108) | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the natural water, industrial cooling water, determination of dissolved solids, boiler water total solids. This standard applies to the determination of the boiler water and industrial cooling water circulating solid material. | GB/T 14415-2007: Water for industrial circulating cooling system and boiler -- Determination of solids matter
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Water for industrial circulating cooling system and boiler. Determination of solids matter
ICS 71.040.40
G76
National Standards of People's Republic of China
Replacing GB/T 14415-1993, GB/T 15893.4-1995
Industrial circulating cooling water and boiler water in
Determination of solid matter
Posted 2007-08-13
2008-02-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard also replace the GB/T 14415-1993 "boiler water and cooling water analysis method of solid substances in the Determination"
GB/T 15893.4-1995 "Industrial circulating cooling water of dissolved solids - Gravimetric method."
The main difference compared with the standard GB/T 14415-1993 as follows.
--- Deletion of the suspended solids measurement method after burning residues and reductions.
The main difference compared with the standard GB/T 15893.4-1995 as follows.
--- Increased the determination of the total solids.
The standard proposed by the People's Republic of China Petroleum and Chemical Industry Association.
This standard by the National Standardization Technical Committee of Chemical Water Treatment Chemicals Branch (SAC/TC63/SC5) centralized.
This standard was drafted. Tianjin Chemical Engineering Research and Design Institute, China Petroleum & Chemical Corporation water treatment chemicals assessment center.
The main drafters of this standard. Shao Hongqian, Jindong, Bai Ying, Li Lin, Zhu Zhuanjun.
This standard replaces the standard release case.
--- GB/T 14415-1993;
--- GB/T 15893.4-1995.
Industrial circulating cooling water and boiler water in
Determination of solid matter
1 Scope
This standard specifies the natural water, industrial cooling water, boiler water total solids, dissolved solids measurement method.
This standard applies to the determination of boiler water and industrial cooling water circulating solid material.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 6903 boiler water and cooling water General Analysis
3 Determination of total solids
This method is applicable to the total solids content of greater than 25mg/L of natural water, cooling water, water of furnace-like determination.
3.1 Principle
In this method, a volume of the water sample, and placed in an evaporating dish of known mass evaporated, transferred 105 ℃ ~ 110 ℃ oven drying to
constant. The remaining residue is the resultant of the total solids in water.
3.2 instruments and equipment
The following general laboratory instruments and equipment.
3.2.1 evaporating dish. 100mm (platinum, quartz, or porcelain evaporating dish).
3.2.2 water bath.
3.3 Analysis Steps
Analysis of the process followed in the relevant provisions of GB/T 6903's.
3.3.1 Wash evaporating dish and placed 105 ℃ ~ 110 ℃ oven drying to constant and set aside.
3.3.2 Pipette a certain amount of water to fully shake sample (total solids content of greater than 25mg) in a known mass of the evaporating dish placed on a steam heater
hair. When a large volume of water sample, you can use low-temperature furnace, a hot plate or infrared heating plate evaporation, condensation (be careful not to boil the water sample), not
Off additional water sample until the volume was reduced after 20mL ~ 30mL to move to the boiling water bath pot continue evaporated to dryness. In order to prevent impurities in the environment
Pollution, should be placed on a tripod in an evaporating dish, and stamped with a watch glass or skirted. Note also that the water bath water can not be connected with the evaporating dish
Touch, in order to avoid contamination evaporating dish, affect the measurement results.
3.3.3 The water has evaporated and the residue samples along with evaporating dish placed in an oven 105 ℃ ~ 110 ℃, the drying to constant weight.
3.4 Calculation Results
Water samples total solids concentration ρ1 and its value in milligrams per liter (mg/L) said, according to the formula (1).
ρ1 =
(M1 m1 2- 1) × 106
Vp 1
(1)
Where.
Value m1 2 --- after drying and evaporation of the total solid mass of the dish in grams (g);
Value m1 --- evaporating dish of mass in grams (g);
Value Vp 1 --- water sample volume in milliliters (mL).
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