Custom Gas Mixtures | Gas

We use cookies to improve your browsing experience and help us improve our websites. By continuing to use our website, you agree to our use of such cookies. Agree Learn more

Need an Account? Register or Login

Find A Branch
Customer Service
SDS Search

Switch Account
Dashboard

(0)

Need an Account? Register or Login

Find A Branch
Customer Service
SDS Search

Products

Home/
Category Page/
Gases/
Mixed Gases

Results For:
By Category
Mixed Gases
Gas Comp Amount1
5.0000000 79.2000000 99.9975000 99.9994300 99.9830000
Gas Comp 1
PPM SULFUR DIOXIDE NITROGEN PROPANE HYDROGEN PPM NITROGEN DIOXIDE

Narrow Results:

{$title}

{$label}

Cylinder Size
Choose a refinement:

200 Steel HP (8)

300 Steel HP (8)

58L Aluminum Disp (8)

150 Aluminum HP (5)

12 Pack (2)

34L Aluminum Disp (2)

58L AL Refillable HP (2)

900L AL Refillable HP (2)

103 Steel Disp (1)

116L AL Refillable HP (1)

12 Pack 200 Steel HP (1)

12 Pack 300 Steel HP (1)

300 Aluminum HP (1)

33 Aluminum HP (1)

6 Pack (1)

6 Pack 200 Steel HP (1)

900L AL Refilable HP (1)

CGA Connection
Choose a refinement:

CGA 350 (17)

CGA C10 (14)

CGA 660 (3)

CGA 330 (2)

CGA 580 (2)

CGA 660 Washer (1)

CGA 705 Face Washer (1)

Gas Component Amount 1
Choose a refinement:

100.0000000 (23)

99.9990000 (19)

80.0000000 (15)

60.0000000 (14)

90.0000000 (13)

95.0000000 (13)

2.0000000 (11)

75.0000000 (10)

79.4875000 (10)

83.5420000 (10)

85.4925000 (10)

85.0000000 (9)

10.0000000 (8)

40.0000000 (8)

50.0000000 (8)

70.0000000 (8)

98.0000000 (8)

89.0000000 (7)

99.6000000 (7)

15.0000000 (6)

80.4875000 (6)

92.0000000 (6)

96.0000000 (6)

99.9791600 (6)

99.9900000 (6)

99.9950000 (6)

99.9960000 (6)

35.0000000 (5)

79.0000000 (5)

79.4900000 (5)

81.6400000 (5)

99.0000000 (5)

99.9700000 (5)

99.9750000 (5)

99.9995000 (5)

99.9998000 (5)

99.9999500 (5)

25.0000000 (4)

55.0000000 (4)

79.1000000 (4)

82.0000000 (4)

88.0000000 (4)

97.0000000 (4)

99.9600000 (4)

99.9739500 (4)

99.9800000 (4)

99.9820000 (4)

99.9955000 (4)

99.9991000 (4)

1.0000000 (3)

180.0000000 (3)

7.0000000 (3)

79.4940000 (3)

81.0420000 (3)

81.6375000 (3)

83.5400000 (3)

99.9100000 (3)

99.9947900 (3)

99.9989000 (3)

99.9997000 (3)

99.9999000 (3)

13.5000000 (2)

2.5000000 (2)

3.0000000 (2)

3.5000000 (2)

65.0000000 (2)

66.0000000 (2)

74.0000000 (2)

77.3200000 (2)

78.0000000 (2)

78.4000000 (2)

79.6000000 (2)

81.0000000 (2)

81.9820000 (2)

82.4100000 (2)

83.0000000 (2)

86.0000000 (2)

86.5000000 (2)

87.0000000 (2)

91.0000000 (2)

94.0000000 (2)

99.7200000 (2)

99.7500000 (2)

99.8110000 (2)

99.9000000 (2)

99.9200000 (2)

99.9400000 (2)

99.9460000 (2)

99.9500000 (2)

99.9550000 (2)

99.9730000 (2)

99.9775000 (2)

99.9835000 (2)

99.9899000 (2)

99.9910000 (2)

99.9925000 (2)

99.9937000 (2)

99.9973000 (2)

99.9980000 (2)

99.9982000 (2)

99.9983000 (2)

99.9992000 (2)

99.9992500 (2)

99.9996000 (2)

0.1000000 (1)

0.6000000 (1)

1.1000000 (1)

1.7000000 (1)

10.5000000 (1)

12.0000000 (1)

1350.0000000 (1)

15.6000000 (1)

18.0000000 (1)

1800.0000000 (1)

27.0000000 (1)

275.0000000 (1)

28.0000000 (1)

30.0000000 (1)

300.0000000 (1)

31.4000000 (1)

31.4100000 (1)

3150.0000000 (1)

385.0000000 (1)

39.0000000 (1)

4.0000000 (1)

45.0000000 (1)

5.5000000 (1)

500.0000000 (1)

53.0575000 (1)

53.7860000 (1)

59.0000000 (1)

6.0000000 (1)

61.7500000 (1)

62.0000000 (1)

630.0000000 (1)

64.0000000 (1)

64.6000000 (1)

64.9750000 (1)

6400.0000000 (1)

69.0000000 (1)

69.6000000 (1)

720.0000000 (1)

74.7000000 (1)

74.9500000 (1)

76.5000000 (1)

76.9890000 (1)

77.0000000 (1)

77.3210000 (1)

77.4550000 (1)

77.5000000 (1)

77.6000000 (1)

77.8950000 (1)

77.9820000 (1)

78.4490000 (1)

78.5000000 (1)

78.5375000 (1)

78.6500000 (1)

78.7500000 (1)

78.9000000 (1)

78.9400000 (1)

78.9920000 (1)

79.1400000 (1)

79.4780000 (1)

79.4960000 (1)

79.5000000 (1)

79.6800000 (1)

79.7450000 (1)

79.7600000 (1)

79.9000000 (1)

79.9193000 (1)

79.9875000 (1)

79.9920000 (1)

8.0000000 (1)

80.2000000 (1)

80.4375000 (1)

80.4750000 (1)

80.4890000 (1)

80.5000000 (1)

80.6375000 (1)

80.7375000 (1)

81.1000000 (1)

81.2000000 (1)

81.6580000 (1)

81.8470000 (1)

81.8785000 (1)

81.9100000 (1)

81.9470000 (1)

81.9770000 (1)

81.9910000 (1)

81.9973000 (1)

82.4920000 (1)

82.4930000 (1)

82.4940000 (1)

82.5800000 (1)

82.8690000 (1)

82.9991500 (1)

83.0930000 (1)

83.5410000 (1)

83.6690000 (1)

83.7325000 (1)

83.8950000 (1)

84.0325000 (1)

84.7875000 (1)

84.9000000 (1)

85.4900000 (1)

85.5000000 (1)

850.0000000 (1)

86.1130000 (1)

86.2500000 (1)

86.4300000 (1)

86.8000000 (1)

87.0900000 (1)

87.0925000 (1)

87.3865000 (1)

87.4760000 (1)

87.9890000 (1)

88.5000000 (1)

88.5325000 (1)

88.7500000 (1)

88.8240000 (1)

88.9670000 (1)

88.9711000 (1)

88.9900000 (1)

88.9972500 (1)

89.1445000 (1)

89.1850000 (1)

89.4900000 (1)

90.3990000 (1)

90.4000000 (1)

90.8110000 (1)

90.9895000 (1)

91.5000000 (1)

92.7820000 (1)

92.9975000 (1)

93.2000000 (1)

93.8140000 (1)

93.8450000 (1)

94.4917500 (1)

94.5000000 (1)

95.4725000 (1)

95.4964000 (1)

95.5000000 (1)

95.9700000 (1)

95.9910000 (1)

95.9982000 (1)

97.8000000 (1)

97.8400000 (1)

97.9600000 (1)

98.2000000 (1)

98.8900000 (1)

98.9320000 (1)

98.9900000 (1)

99.4000000 (1)

99.5000000 (1)

99.5500000 (1)

99.6400000 (1)

99.6670000 (1)

99.6710000 (1)

99.6894000 (1)

99.7030000 (1)

99.7100000 (1)

99.7300000 (1)

99.7420000 (1)

99.7885000 (1)

99.7900000 (1)

99.7952000 (1)

99.8120000 (1)

99.8200000 (1)

99.8375000 (1)

99.8640000 (1)

99.8647000 (1)

99.8650000 (1)

99.8773500 (1)

99.8860000 (1)

99.8920000 (1)

99.8960000 (1)

99.9010000 (1)

99.9020000 (1)

99.9065000 (1)

99.9070000 (1)

99.9091000 (1)

99.9150000 (1)

99.9175000 (1)

99.9250000 (1)

99.9285000 (1)

99.9320000 (1)

99.9370000 (1)

99.9395000 (1)

99.9499500 (1)

99.9514000 (1)

99.9595000 (1)

99.9615000 (1)

99.9620000 (1)

99.9640000 (1)

99.9650000 (1)

99.9659000 (1)

99.9670000 (1)

99.9685000 (1)

99.9690000 (1)

99.9715000 (1)

99.9725000 (1)

99.9749500 (1)

99.9760000 (1)

99.9780000 (1)

99.9787500 (1)

99.9799000 (1)

99.9810000 (1)

99.9815000 (1)

99.9825000 (1)

99.9832000 (1)

99.9848000 (1)

99.9856000 (1)

99.9860000 (1)

99.9862500 (1)

99.9865000 (1)

99.9869700 (1)

99.9870000 (1)

99.9875000 (1)

99.9880000 (1)

99.9890000 (1)

99.9892000 (1)

99.9895800 (1)

99.9899880 (1)

99.9899940 (1)

99.9909000 (1)

99.9915000 (1)

99.9917500 (1)

99.9920000 (1)

99.9922000 (1)

99.9932000 (1)

99.9939000 (1)

99.9940000 (1)

99.9945000 (1)

99.9946000 (1)

99.9948400 (1)

99.9964000 (1)

99.9965000 (1)

99.9965900 (1)

99.9967000 (1)

99.9969000 (1)

99.9970000 (1)

99.9972000 (1)

99.9972500 (1)

99.9974000 (1)

99.9984000 (1)

99.9985000 (1)

99.9986500 (1)

99.9987500 (1)

99.9991805 (1)

99.9993000 (1)

99.9994000 (1)

99.9997500 (1)

99.9998800 (1)

99.9999250 (1)

99.9999990 (1)

Gas Component 1
Choose a refinement:

% CARBON DIOXIDE (28)

% OXYGEN (12)

% AIR (4)

% HELIUM (3)

PPM CHLORINE (2)

% PROPYLENE (1)

% SEVOFLURANE (1)

% SULFUR HEXAFLUORIDE (1)

PPM NITRIC OXIDE (1)

PPM PHOSPHINE (1)

Gas Component Amount 2
Choose a refinement:

25.0000000 (15)

95.0000000 (11)

170.0000000 (3)

5.0000000 (3)

99.9995000 (3)

85.0000000 (2)

100.0000000 (1)

20.8000000 (1)

75.0000000 (1)

Gas Component 2
Choose a refinement:

% NITROGEN (10)

PPM HYDROGEN SULFIDE (6)

PPM AMMONIA (5)

% ARGON (4)

% CARBON DIOXIDE (3)

PPM NITRIC OXIDE (3)

% AIR (2)

% OXYGEN (1)

PPB CYCLOPENTANE (1)

PPM CARBON MONOXIDE (1)

PPM HYDROGEN CHLORIDE (1)

PPM NITROGEN DIOXIDE (1)

PPM OXYGEN (1)

PPM SULFUR DIOXIDE (1)

Gas Component Amount 3
Choose a refinement:

90.0000000 (3)

10.0000000 (1)

100.0000000 (1)

20.0000000 (1)

85.0000000 (1)

Gas Component 3
Choose a refinement:

% NITROGEN (3)

% CARBON DIOXIDE (2)

PPB DODECANE (1)

PPM CARBON MONOXIDE (1)

Gas Component Amount 4
Choose a refinement:

100.0000000 (1)

Gas Component 4
Choose a refinement:

PPB ETHANE (1)

Gas Component Amount 5
Choose a refinement:

100.0000000 (1)

Gas Component 5
Choose a refinement:

PPB ETHYL BENZENE (1)

Gas Component Amount 6
Choose a refinement:

100.0000000 (1)

Gas Component 6
Choose a refinement:

PPB ETHYLENE (1)

Compare Products Up to 4

Clear All

Mixed Gases

Sort by:

X02AR95B300J051

5% Hydrogen, Balance Argon Batch Analyzed Mixture, Size 300 High Pressure Steel Cylinder, CGA 350

Show Full Description Hide Full Description

Compare

5% Hydrogen, Balance Argon Batch Analyzed Mixture, Size 300 High Pressure Steel Cylinder, CGA 350

SDS

5% Hydrogen, Balance Argon Batch Analyzed Mixture, Size 300 High Pressure Steel Cylinder, CGA 350

Show Full Description Hide Full Description

Airgas Part #:X02AR95B300J051

SDS

E02NI99E15A0083

170PPM Carbon Monoxide, Balance Nitrogen EPA Protocol Standard Mixture, Size 150 High Pressure Aluminum Cylinder, CGA 350

Show Full Description Hide Full Description

Compare

170PPM Carbon Monoxide, Balance Nitrogen EPA Protocol Standard Mixture, Size 150 High Pressure Aluminum Cylinder, CGA 350

SDS

170PPM Carbon Monoxide, Balance Nitrogen EPA Protocol Standard Mixture, Size 150 High Pressure Aluminum Cylinder, CGA 350

Show Full Description Hide Full Description

Airgas Part #:E02NI99E15A0083

SDS

E02NI99E15A0243

25PPM Hydrogen Sulfide, Balance Nitrogen EPA Protocol Standard Mixture, Size 150 High Pressure Aluminum, CGA 330

Show Full Description Hide Full Description

Compare

25PPM Hydrogen Sulfide, Balance Nitrogen EPA Protocol Standard Mixture, Size 150 High Pressure Aluminum, CGA 330

SDS

25PPM Hydrogen Sulfide, Balance Nitrogen EPA Protocol Standard Mixture, Size 150 High Pressure Aluminum, CGA 330

Show Full Description Hide Full Description

Airgas Part #:E02NI99E15A0243

SDS

X02NI99CA169D12

25PPM Ammonia, Balance Nitrogen Certified Reference Material, 116 Liter Portable Refilable Aluminum High Pressure Cylinder, CGA C10

Show Full Description Hide Full Description

Compare

25PPM Ammonia, Balance Nitrogen Certified Reference Material, 116 Liter Portable Refilable Aluminum High Pressure Cylinder, CGA C10

SDS

25PPM Ammonia, Balance Nitrogen Certified Reference Material, 116 Liter Portable Refilable Aluminum High Pressure Cylinder, CGA C10

Show Full Description Hide Full Description

Airgas Part #:X02NI99CA169D12

SDS

X02AR95C300F810

5% Nitrogen, Balance Argon Certified Reference Material, Size 300 High Pressure Steel Cylinder, CGA 580

Show Full Description Hide Full Description

Compare

5% Nitrogen, Balance Argon Certified Reference Material, Size 300 High Pressure Steel Cylinder, CGA 580

SDS

5% Nitrogen, Balance Argon Certified Reference Material, Size 300 High Pressure Steel Cylinder, CGA 580

Show Full Description Hide Full Description

Airgas Part #:X02AR95C300F810

SDS

X03NI99P15A41R8

85PPM Carbon Monoxide, 85PPM Nitirc Oxide, Balance Nitrogen Primary Standard Grade, Size 150 High Pressure Aluminum Cylinder, CGA 660

Show Full Description Hide Full Description

Compare

85PPM Carbon Monoxide, 85PPM Nitirc Oxide, Balance Nitrogen Primary Standard Grade, Size 150 High Pressure Aluminum Cylinder, CGA 660

SDS

85PPM Carbon Monoxide, 85PPM Nitirc Oxide, Balance Nitrogen Primary Standard Grade, Size 150 High Pressure Aluminum Cylinder, CGA 660

Show Full Description Hide Full Description

Airgas Part #:X03NI99P15A41R8

SDS

X02NI99CA3459B9

25PPM Hydrogen Sulfide, Balance Nitrogen Certified Reference Material, 34 Liter Portable Disposable Aluminum Cylinder, CGA C10

Show Full Description Hide Full Description

Compare

25PPM Hydrogen Sulfide, Balance Nitrogen Certified Reference Material, 34 Liter Portable Disposable Aluminum Cylinder, CGA C10

SDS

25PPM Hydrogen Sulfide, Balance Nitrogen Certified Reference Material, 34 Liter Portable Disposable Aluminum Cylinder, CGA C10

Show Full Description Hide Full Description

Airgas Part #:X02NI99CA3459B9

SDS

X02NI99CA580008

25PPM Ammonia, Balance Nitrogen Certified Reference Material, 58 Liter Portable Refilable Aluminum High Pressure Cylinder, CGA C10

Show Full Description Hide Full Description

Compare

25PPM Ammonia, Balance Nitrogen Certified Reference Material, 58 Liter Portable Refilable Aluminum High Pressure Cylinder, CGA C10

SDS

25PPM Ammonia, Balance Nitrogen Certified Reference Material, 58 Liter Portable Refilable Aluminum High Pressure Cylinder, CGA C10

Show Full Description Hide Full Description

Airgas Part #:X02NI99CA580008

SDS

E02NI99E3HA0029

170PPM Nitirc Oxide, Balance Nitrogen EPA Protocol Standard Mixture, Size 300 High Pressure Aluminum Cylinder, CGA 660

Show Full Description Hide Full Description

Compare

170PPM Nitirc Oxide, Balance Nitrogen EPA Protocol Standard Mixture, Size 300 High Pressure Aluminum Cylinder, CGA 660

SDS

170PPM Nitirc Oxide, Balance Nitrogen EPA Protocol Standard Mixture, Size 300 High Pressure Aluminum Cylinder, CGA 660

Show Full Description Hide Full Description

Airgas Part #:E02NI99E3HA0029

SDS

X58NI99C33A0000

100PPB CycloPentane, 100PPB Dodecane 100PPB Ethane, 100PPB Ethyl Benzene, 100PPB Ethylene, 100PPB Hexane 100PPB Isobutane, 100PPB Isoctane Certified Reference Material, Size 33 High Pressure Aluminum Cylinder, CGA 350

100PPB CycloPentane, 100PPB Dodecane 100PPB Ethane, 100PPB Ethyl Benzene, 100PPB Ethylene, 100PPB Hexane 100PPB Isobutane, 100PPB Isoctane Certified Reference Material, Size 33 High Pressure Aluminum Cylinder, CGA 350

Show Full Description Hide Full Description

Compare

SDS

100PPB CycloPentane, 100PPB Dodecane 100PPB Ethane, 100PPB Ethyl Benzene, 100PPB Ethylene, 100PPB Hexane 100PPB Isobutane, 100PPB Isoctane Certified Reference Material, Size 33 High Pressure Aluminum Cylinder, CGA 350

Show Full Description Hide Full Description

Airgas Part #:X58NI99C33A0000

SDS

X02NI99CP9H0009

25PPM Oxygen, Balance Nitrogen Certified Reference Material, 900 Liter Portable Refilable Aluminum High Pressure Cylinder, CGA 580

Show Full Description Hide Full Description

Compare

SDS

25PPM Oxygen, Balance Nitrogen Certified Reference Material, 900 Liter Portable Refilable Aluminum High Pressure Cylinder, CGA 580

Show Full Description Hide Full Description

Airgas Part #:X02NI99CP9H0009

SDS

X02NI99C15A9131

25PPM Sulfur Dioxide, Balance Nitrogen Certified Reference Material, Size 150 High Pressure Aluminum Cylinder, CGA 660

Show Full Description Hide Full Description

Compare

25PPM Sulfur Dioxide, Balance Nitrogen Certified Reference Material, Size 150 High Pressure Aluminum Cylinder, CGA 660

SDS

25PPM Sulfur Dioxide, Balance Nitrogen Certified Reference Material, Size 150 High Pressure Aluminum Cylinder, CGA 660

Show Full Description Hide Full Description

Airgas Part #:X02NI99C15A9131

SDS

X02NI79CP10C013

20.8% Oxygen, Balance Nitrogen Certified Reference Material, 103 Liter Portable Disposable Steel Cylinder, CGA C10

Show Full Description Hide Full Description

Compare

20.8% Oxygen, Balance Nitrogen Certified Reference Material, 103 Liter Portable Disposable Steel Cylinder, CGA C10

SDS

20.8% Oxygen, Balance Nitrogen Certified Reference Material, 103 Liter Portable Disposable Steel Cylinder, CGA C10

Show Full Description Hide Full Description

Airgas Part #:X02NI79CP10C013

SDS

X02NI99CP9H0011

25PPM Hydrogen Sulfide, Balance Nitrogen Certified Reference Material, 900 Liter Portable Refilable Aluminum High Pressure Cylinder, CGA 330

Show Full Description Hide Full Description

Compare

SDS

25PPM Hydrogen Sulfide, Balance Nitrogen Certified Reference Material, 900 Liter Portable Refilable Aluminum High Pressure Cylinder, CGA 330

Show Full Description Hide Full Description

Airgas Part #:X02NI99CP9H0011

SDS

X02NI99CP58C0V0

25PPM Hydrogen Chloride, Balance Nitrogen Certified Reference Material, 58 Liter Portable Disposable Aluminum Cylinder, CGA C10

Show Full Description Hide Full Description

Compare

25PPM Hydrogen Chloride, Balance Nitrogen Certified Reference Material, 58 Liter Portable Disposable Aluminum Cylinder, CGA C10

SDS

25PPM Hydrogen Chloride, Balance Nitrogen Certified Reference Material, 58 Liter Portable Disposable Aluminum Cylinder, CGA C10

Show Full Description Hide Full Description

Airgas Part #:X02NI99CP58C0V0

SDS

X02NI99CP9HC006

25PPM Ammonia, Balance Nitrogen Certified Reference Material, 900 Liter Portable Refilable Aluminum High Pressure Cylinder, CGA 705

Show Full Description Hide Full Description

Compare

SDS

25PPM Ammonia, Balance Nitrogen Certified Reference Material, 900 Liter Portable Refilable Aluminum High Pressure Cylinder, CGA 705

Show Full Description Hide Full Description

Airgas Part #:X02NI99CP9HC006

SDS

X02AI99CA34V175

5PPM Nitrogen Dioxide, Balance Air Certified Reference Material, 34 Liter Portable Disposable Aluminum Cylinder, CGA C10

Show Full Description Hide Full Description

Compare

5PPM Nitrogen Dioxide, Balance Air Certified Reference Material, 34 Liter Portable Disposable Aluminum Cylinder, CGA C10

SDS

5PPM Nitrogen Dioxide, Balance Air Certified Reference Material, 34 Liter Portable Disposable Aluminum Cylinder, CGA C10

Show Full Description Hide Full Description

Airgas Part #:X02AI99CA34V175

SDS

X02NI99CP58C0N7

25PPM Hydrogen Sulfide, Balance Nitrogen Certified Reference Material, 58 Liter Portable Disposable Aluminum Cylinder, CGA C10

Show Full Description Hide Full Description

Compare

25PPM Hydrogen Sulfide, Balance Nitrogen Certified Reference Material, 58 Liter Portable Disposable Aluminum Cylinder, CGA C10

SDS

25PPM Hydrogen Sulfide, Balance Nitrogen Certified Reference Material, 58 Liter Portable Disposable Aluminum Cylinder, CGA C10

Show Full Description Hide Full Description

Airgas Part #:X02NI99CP58C0N7

SDS

X02NI99CP58C0Z8

25PPM Ammonia, Balance Nitrogen Certified Reference Material, 58 Liter Portable Disposable Aluminum Cylinder, CGA C10

Show Full Description Hide Full Description

Compare

25PPM Ammonia, Balance Nitrogen Certified Reference Material, 58 Liter Portable Disposable Aluminum Cylinder, CGA C10

SDS

25PPM Ammonia, Balance Nitrogen Certified Reference Material, 58 Liter Portable Disposable Aluminum Cylinder, CGA C10

Show Full Description Hide Full Description

Airgas Part #:X02NI99CP58C0Z8

SDS

X02NI99CA580010

25PPM Hydrogen Sulfide, Balance Nitrogen Certified Reference Material, 58 Liter Portable Refilable Aluminum High Pressure Cylinder, CGA C10

Show Full Description Hide Full Description

Compare

25PPM Hydrogen Sulfide, Balance Nitrogen Certified Reference Material, 58 Liter Portable Refilable Aluminum High Pressure Cylinder, CGA C10

SDS

25PPM Hydrogen Sulfide, Balance Nitrogen Certified Reference Material, 58 Liter Portable Refilable Aluminum High Pressure Cylinder, CGA C10

Show Full Description Hide Full Description

Airgas Part #:X02NI99CA580010

SDS

‹ PREV
1
2

Customer Service
Airgas response to COVID-19▶