硫酸镁 标准查询与下载



共找到 56 条与 硫酸镁 相关的标准,共 4

本标准适用于以天然碳酸镁(菱镁矿)和硫酸、硫镁钒及海水为原料生产的食品添加剂硫酸镁。

ICS
CCS
X42
发布
2012-12-25
实施
2013-01-25

本标准规定了农业用硫酸镁的要求、试验方法、检验规则、标识、包装、运输和贮存。 本标准适用于农业用硫酸镁。

Magnesium sulfate for agricultural use

ICS
65.080
CCS
G21
发布
2011-06-16
实施
2011-07-15

本标准规定了化学试剂硫酸镁的技术要求、试验方法、检验规则和包装及标志。

Chemical reagent. Magnesium sulfate heptahydrate

ICS
71.040.30
CCS
G62
发布
1998-10-20
实施
1999-05-01

ICS
CCS
发布
实施
2016-07-01

ICS
G12
CCS
HG/T 2680-2009
发布
2017-11-07
实施
2018-04-01

Automobile roads of general use. The mineral materials for the preparation of asphalt mixtures. Method for determination of loss of mass under the action of sodium sulfate or magnesium sulfate

ICS
93.080.20
CCS
发布
2016
实施
2016-09-01

Automobile roads of general use. The mineral materials for the preparation of asphalt mixtures. Method for determination of loss of mass under the action of sodium sulfate or magnesium sulfate

ICS
93.080.20
CCS
Q13
发布
2016
实施
2016-09-01

本标准规定了镁质胶凝材料制品用硫酸镁的要求、试验方法、检验规则、包装与标志、运输与贮存。本标准适用于镁质胶凝材料制品用硫酸镁。

Magnesium sulfate for magnesia cement products

ICS
71.060.50
CCS
G12
发布
2015-08-03
实施
2015-10-01

Magnesium sulfate heptahydrate (Reagent)

ICS
71.040.30
CCS
G62
发布
2015-03-20
实施

(a) Specifications. Each milliliter of solution contains 42.5 milligrams (mg) of chloral hydrate, 8.86 mg of pentobarbital, and 21.2 mg of magnesium sulfate. (b) Sponsor. See No. 054771 in § 510.600(c) of this chapter.

Food and drugs. Part522:Implantation or injectable dosage form new animal drugs. Section522.380:Chloral hydrate, pentobarbital, and magnesium sulfate.

ICS
CCS
发布
2014-03-25
实施
2014-03-25

3.1x00a0;This test method provides a procedure for making a preliminary estimate of the soundness of aggregates for use in concrete and other purposes. The values obtained may be compared with specifications, for example Specification C33, that are designed to indicate the suitability of aggregate proposed for use. Since the precision of this test method is poor (Section 12), it may not be suitable for outright rejection of aggregates without confirmation from other tests more closely related to the specific service intended. 3.2x00a0;Values for the permitted-loss percentage by this test method are usually different for fine and coarse aggregates, and attention is called to the fact that test results by use of the two salts differ considerably and care must be exercised in fixing proper limits in any specifications that include requirements for these tests. The test is usually more severe when magnesium sulfate is used; accordingly, limits for percent loss allowed when magnesium sulfate is used are normally higher than limits when sodium sulfate is used.Note 1x2014;Refer to the appropriate sections in Specification C33 establishing conditions for acceptance of coarse and fine aggregates which fail to meet requirements based on this test. 1.1x00a0;This test method covers the testing of aggregates to estimate their soundness when subjected to weathering action in concrete or other applications. This is accomplished by repeated immersion in saturated solutions of sodium or magnesium sulfate followed by oven drying to partially or completely dehydrate the salt precipitated in permeable pore spaces. The internal expansive force, derived from the rehydration of the salt upon re-immersion, simulates the expansion of water on freezing. This test method furnishes information helpful in judging the soundness of aggregates when adequate information is not available from service records of the material exposed to actual weathering conditions. 1.2x00a0;The values given in parentheses are provided for information purposes only. 1.3x00a0;This standard does not purport to address the safety problems 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.

Standard Test Method for Soundness of Aggregates by Use of Sodium Sulfate or Magnesium Sulfate

ICS
91.100.30 (Concrete and concrete products)
CCS
Q13
发布
2013
实施

This European Standard describes the reference method used for type testing and in cases of dispute for assessing how an aggregate behaves when subjected to the cyclic action of immersion in magnesium sulfate, followed by oven drying. For other purposes, in particular factory production control, other methods may be used provided that an appropriate working relationship with the reference method has been established.

Tests for thermal and weathering properties of aggregates - Magnesium sulfate test

ICS
91.100.15
CCS
Q13
发布
2010-05-31
实施
2010-05-31

Tests for thermal and weathering properties of aggregates - Part 2 : magnesium sulphate test.

ICS
91.100.15
CCS
Q13
发布
2010-04-01
实施
2010-04-03

This European Standard describes the reference method used for type testing and in cases of dispute for assessing how an aggregate behaves when subjected to the cyclic action of immersion in magnesium sulfate, followed by oven drying. For other purposes, in particular factory production control, other methods may be used provided that an appropriate working relationship with the reference method has been established. NOTE The majority of aggregates can be tested for performance using this method. Precision has been established for the rock types listed in Annex A. The test may not be suitable for all rock types and reservations have been expressed elsewhere in respect of some carbonate aggregates and some aggregates having a high proportion of magnesium bearing materials or of cryptocrystalline quartz.

Tests for thermal and weathering properties of aggregates - Part 2: Magnesium sulfate test; German version EN 1367-2:2009

ICS
91.100.15
CCS
D04
发布
2010-02
实施

本标准规定了工业硫酸镁的分类、要求、试验方法、检验规则、标志、包装、运输、贮存。 本标准适用于工业硫酸镁,主要用于制革、印染、催化剂、造纸、塑料及防火涂料等。

Magnesium sulfate for industrial use

ICS
71.060.50
CCS
G12
发布
2009-12-04
实施
2010-06-01

This European Standard describes the reference method used for type testing and in cases of dispute for assessing how an aggregate behaves when subjected to the cyclic action of immersion in magnesium sulfate, followed by oven drying. For other purposes, in particular factory production control, other methods may be used provided that an appropriate working relationship with the reference method has been established. NOTE The majority of aggregates can be tested for performance usingThis method. Precision has been established for the rock types listed in Annex A. The test may not be suitable for all rock types and reservations have been expressed elsewhere in respect of some carbonate aggregates and some aggregates having a high proportion of magnesium bearing materials or of cryptocrystalline quartz.

Tests for thermal and weathering properties of aggregates - Part 2: Magnesium sulfate test

ICS
91.100.15
CCS
发布
2009
实施

Esta norma tiene por objeto se?alar las principales características y fijar los límites máximos de impurezas tolerables para el sulfato de magnesio heptahidrato, de calidad reactivo para análisis, así como describir los ensayos para la de-terminación de las impurezas cuyos límites se fijan.

ICS
CCS
发布
2008-1-1
实施

Specifies a method for determining the soundness of aggregates. The results obtained provide useful information for assessing the weathering properties of an aggregate intended to be used under specific weathering conditions.

Soundness of aggregates (magnesium sulfate method)

ICS
91.100.15
CCS
Q13
发布
2008-07-18
实施

Testing methods for agregat durability characteristics using sodium sulphate and magnesium sulphate solution

ICS
91.100.15
CCS
发布
2008
实施

This test method provides a procedure for making a preliminary estimate of the soundness of aggregates for use in concrete and other purposes. The values obtained may be compared with specifications, for example Specification C 33, that are designed to indicate the suitability of aggregate proposed for use. Since the precision of this test method is poor (Section 12), it may not be suitable for outright rejection of aggregates without confirmation from other tests more closely related to the specific service intended. Values for the permitted-loss percentage by this test method are usually different for fine and coarse aggregates, and attention is called to the fact that test results by use of the two salts differ considerably and care must be exercised in fixing proper limits in any specifications that include requirements for these tests. The test is usually more severe when magnesium sulfate is used; accordingly, limits for percent loss allowed when magnesium sulfate is used are normally higher than limits when sodium sulfate is used. Note 18212;Refer to the appropriate sections in Specification C 33 establishing conditions for acceptance of coarse and fine aggregates which fail to meet requirements based on this test.1.1 This test method covers the testing of aggregates to estimate their soundness when subjected to weathering action in concrete or other applications. This is accomplished by repeated immersion in saturated solutions of sodium or magnesium sulfate followed by oven drying to partially or completely dehydrate the salt precipitated in permeable pore spaces. The internal expansive force, derived from the rehydration of the salt upon re-immersion, simulates the expansion of water on freezing. This test method furnishes information helpful in judging the soundness of aggregates when adequate information is not available from service records of the material exposed to actual weathering conditions. 1.2 The values given in parentheses are provided for information purposes only. 1.3 This standard does not purport to address the safety problems 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.

Standard Test Method for Soundness of Aggregates by Use of Sodium Sulfate or Magnesium Sulfate

ICS
91.100.30 (Concrete and concrete products)
CCS
Q13
发布
2005
实施



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